SUMNER GLOBAL HUB LIMITED (UK)
DAVID SUMNER - CHAIRMAN
David Sumner brings over 30 years of global leadership experience across the defence, healthcare, mining, cleantech, and industrial & energy commodity trading sectors, with a strong focus on corporate finance and strategic development. He has served in both executive and non-executive roles on the boards of numerous private and publicly listed companies.
Throughout his career, Mr Sumner has consistently demonstrated his expertise in capital markets, successfully raising both debt and equity funding internationally. He has led many companies through to public listing, establishing a proven track record in building and scaling businesses for public markets.
Having spent the majority of his professional life in the Middle East and Asia, Mr Sumner has developed extensive networks within government agencies and the corporate sector worldwide. He is particularly known for his ability to navigate complex geopolitical landscapes and drive outcomes that deliver broad-based value.
In addition to his business achievements, Mr Sumner is the founding trustee of The Sumner Foundation, established in 2019, which reflects his long-standing commitment to philanthropy and social impact.
DR MELINDA FOUTS - EXECUTIVE DIRECTOR
Dr Melinda Fouts is a worldwide recognised and highly decorated psychotherapy coach focusing on individuals, corporate executives and government agencies. Her sector-agnostic approach has seen Dr Fouts guide and advise some of the world’s most influential people and entities to ensure that their goals are reached in an effective and ethical manner by allowing leaders to focus on critical and strategic thinking, performance optimisation, and leadership skills development.
Dr Fouts holds an MA in Psychology from the Pacifica Graduate Institute; she achieved her PhD in Psychology from Saybrook University in 2013. She is a member of The International Coach Federation, the Leadership Investment, International Association of Top Professionals (IATOP) and sits on the Forbes Coaches Council. She received recognition from the IAOTP as the Top International Coach of the Year in 2020, and received the award for Most Empowered Woman of the Year in 2021. Dr Fouts has been extensively interviewed for her expertise in executive coaching and also her book, Cognitive Enlightenment.
MR ANGUS MCCAFFERY - EXECUTIVE DIRECTOR
Angus McCaffery began his career in the telecommunications sector, co-founding Maintel in 1991. Under his leadership, Maintel successfully listed on the London Stock Exchange, where it remains publicly traded today. Angus continues to be a shareholder and Non-Executive Director of the company, which consistently delivers annual revenues in excess of £100 million.
In 2019, Angus became the cornerstone investor in 4GD, a high-technology defence business at the forefront of data-enabled training solutions, with operational facilities in both the UK and the US.
With a strong pedigree across the telecommunications and defence sectors, Angus brings deep strategic insight and an intrinsic understanding of capital markets.
BRIAN MAIR - GOVERNMENT PROCUREMENT & PROJECT MANAGEMENT - DEFENCE
During a 30 year extensive and varied career in the Royal Navy, specialising in Diving and Explosive Ordnance Disposal, Brian saw operational service in numerous conflicts across the globe. In addition to ship command he also taught Joint Operational Campaign Planning at home and abroad, served in the Permanent Joint Headquarters and was a Project Manager in the Ministry of Defence. After a year as a student of the Defence School of Language, his final appointment was a Diplomatic role in the Middle East.
On leaving the service as a Commander, having completed a Masters Degree in Security & Risk Management, he transitioned smoothly into the civilian world by working in the Port Special Systems department during the construction of a mega port in Abu Dhabi. This was followed by a senior Corporate Security position with SHELL acting as their Regional Security Manager for Africa. This role, based in Lagos, was responsible for creating a secure business operating environment, minimizing loss and, crucially, safeguarding reputation of SHELL in one of the most complex and high threat security regions in the Group. Brian held a similar role in Mozambique with Anadarko, a large US independent company.
HARRI KIVELA - GOVERNMENT PROCUREMENT & PROJECT MANAGEMENT - SPECIAL SITUATIONS
Harri Kivelä brings over 30 years of international leadership experience across the commodities, logistics and transportation, real estate and corporate advisory sectors, with a strong focus on investor relations, financing solutions and strategic development. He has served in executive and non-executive roles, including as chief executive officer, chairman of the board and supervisory board member, in companies across the Nordic and Baltic regions and Central Europe.
Mr Kivelä began his career in the international trade of food products and raw materials into the CEE, organising raw material imports, building distribution networks and managing the transport and logistics behind them. He went on to lead international transport and forwarding operations in Finland and Germany, and has built, led and successfully exited multiple businesses. Today he is Chief Executive Officer of a Swiss advisory and investment company focused on commodities, private equity, real estate and alternative investments, a Management Board Member of a Luxembourg-based real estate investment and fund management platform, and a Supervisory Board member of an Estonian company that owns and operates a port within a free economic zone.
Having worked across the Nordic and CEE regions, Switzerland, Luxembourg, Germany and the United States, Mr Kivelä has developed an extensive international network within the commodities, logistics and investment communities. He is particularly known for combining entrepreneurial drive with hands-on execution and board-level judgment in cross-border business.
JAANUS RIKKAS - REGIONAL DIRECTOR - MIDDLE EAST
Jaanus leads Sumner Global Hub’s business development and strategic partnerships across the Middle East, working closely with government, defence and institutional stakeholders throughout the region.
Based between Europe and the UAE, he brings extensive entrepreneurial and commercial experience spanning security, technology and international business development. With a strong regional network, Jaanus plays a key role in identifying strategic opportunities, strengthening partnerships and connecting clients with the Group’s international procurement, trading and logistics capabilities.
His focus is on expanding Sumner Global Hub’s presence across the GCC, supporting long-term commercial relationships and driving growth within the defence and energy sectors.
AHMAD ABOELYAZEID - REGIONAL DIRECTOR - NORTH AFRICA
Ahmed Aboelyazeid is an Egyptian business professional with 17 years of consultancy experience spanning Public-Private Partnerships (PPP), business strategy, investment, financing, and government projects. His professional focus is on PPP strategy and project development, with an emphasis on connecting public-sector priorities with private-sector capabilities and investment opportunities.
An Economics graduate of the American University in Cairo, Ahmed has worked with multinational companies and government organisations, gaining valuable exposure to diverse institutional environments, strategic priorities, and investment considerations across the public and private sectors.
JUAN NÚÑEZ DODERO - REGIONAL DIRECTOR - LATIN AMERICA
Juan Manuel Núñez is a seasoned senior executive and strategic connector with extensive experience in high-level corporate governance, market development, and risk management across Latin America. He brings deep expertise in aligning corporate strategy with operational excellence, compliance, and cutting-edge technologies, including AI integration and cyber defence solutions.
Throughout his career, Mr Núñez has served in senior leadership roles across international and regional organisations. His earlier background encompasses strategic B2B leadership in multinational environments and the fintech sector.
Renowned for his strategic network, Mr Núñez maintains strong, high-trust relationships with key decision-makers, institutional investors, and defence leadership across Latin America. He is particularly recognised for his ability to navigate complex regulatory environments and forge strategic cross-border partnerships that drive sustainable regional growth.
Mr Núñez holds a degree in Economics from Universidad Ricardo Palma, complemented by executive and specialised studies at the Peruvian War School, New York University (NYU), The George Washington University, and Tecnológico de Monterrey.
JUDY ROBERT - INTERNATIONAL BUSINESS DEVELOPMENT
Mrs Robert has over 30 years of experience in international business development management and government relations. Judy has an impressive proven track record across all sectors with a particular emphasis on Defence systems and technologies. She has sourced, negotiated and closed numerous multi-million-dollar government-funded deals in the Latin American, Caribbean and European markets.
Based in Israel, Judy is fluent in Spanish, English and Portuguese.
LYNDSEY BARRETT - INTERNATIONAL BUSINESS DEVELOPMENT
Lyndsey is a highly experienced international business professional with over 45 years of experience in luxury hospitality, client relations and business development. Her distinguished career includes senior executive positions at some of the world's most prestigious private members' clubs and luxury establishments, including The Ritz Club in Mayfair.
Throughout her career, Lyndsey has cultivated an extensive international network of high-net-worth individuals, family offices, business leaders and influential contacts across Europe, the Middle East, Asia and the Americas. She brings a wealth of experience in relationship management, strategic introductions and delivering exceptional service to an international clientele.
In her role as International Business Development at Sumner Global Hub, Lyndsey leverages her established global relationships and deep understanding of international business cultures to identify new opportunities, develop strategic partnerships and facilitate valuable connections that support the Group's continued growth and international reach.
THOMAS PARK - INTERNATIONAL BUSINESS DEVELOPMENT
Tom Park is a former British Army officer and defence-sector entrepreneur with experience in international defence procurement, strategic business development and government contracting.
During nearly six years in the British Army, Tom served with the Mercian Regiment and subsequently the Ranger Regiment. His military career included commanding infantry soldiers overseas, the selection and training of Ranger candidates, and advising, mentoring and working alongside foreign military forces, including European special forces and specialist military units.
Following his military career, Tom co-founded a specialist defence communications company providing secure connectivity solutions to government and military customers. The company successfully secured a UK Ministry of Defence contract supporting British personnel deployed overseas.
Tom has since worked with Sumner Global Hub and partner American defence businesses, developing international commercial opportunities and working with global partners to facilitate the sourcing, negotiation and supply of defence equipment to government and military customers.
He combines military leadership, entrepreneurial experience and commercial judgement with a strong international network and an understanding of the complexities of defence procurement and government contracting.
DAVID MCGUINESS - INTERNATIONAL FINANCE
David’s background is in real estate investment and development, where he gained experience in transaction structuring, capital formation, and cross-border investment activity. His work has since broadened to include structured transactions and trade finance, with a focus on facilitating access to institutional and private capital and aligning financing solutions with underlying asset and operating strategies across the UK and Europe.
David is responsible for capital partnerships at Sumner Global Hub. His work focuses on structuring and securing appropriate sources of capital to support the firm’s operating platforms, as well as developing and maintaining relationships with lenders, investors, and financing partners.
MANDIP TIWANA - INTERNATIONAL RECRUITMENT
Mandip has over 20 years of International recruitment experience across the healthcare, social care, construction, and labour sectors. Having held various senior industry positions, Mandip has a deep understanding of, and expertise relating to, the supply of human resources for critical industries for both the private and public sectors.
Mandip has been successful in winning multiple large UK government contracts for the supply of manpower under government awarded national framework agreements. She has developed numerous International recruitment campaigns in Southern and Eastern Asia and has a deep understanding of the complex regulatory and immigration systems involved in large scale deployments
Mandip holds a BA (Hons) in Humanities from the University of Greenwich.
JAMES MACKIE - FINANCE
James is a Chartered Certified Accountant (ACCA) and a member of the Association of Taxation Technicians (ATT), holding specialist qualifications in UK taxation. He also completed the US Enrolled Agent qualification, giving him a working knowledge of tax on both sides of the Atlantic.
James advises a range of clients including charities, companies and private individuals on accounting and tax matters, covering both strategic advisory work and ongoing compliance. His experience includes group reporting, compliance, charity accounts and personal tax, with a particular focus on international and cross-border matters.
James works alongside the Sumner Global Group in a consultant capacity, supporting the board on financial reporting and tax across the group's UK and international operations.
LAURA CHAMBERLAIN - CORPORATE ADMIN & HR
Laura has over 20 years of corporate administration experience spanning executive and board support, office and facilities management, HR, marketing, and logistics. She leads Corporate Administration and HR at Sumner Global Hub, focusing on coordinating business operations and implementing effective systems and processes across international teams.
A History graduate of the University of Manchester, Laura has worked closely with senior leadership across a range of industries and jurisdictions. Her experience has given her a broad understanding of diverse business environments, organisational priorities and the administrative requirements of businesses operating across multiple territories.
SUMNER GLOBAL HUB LIMITED (UK)
DAVID SUMNER - CHAIRMAN
David Sumner brings over 30 years of global leadership experience across the defence, healthcare, mining, cleantech, and industrial & energy commodity trading sectors, with a strong focus on corporate finance and strategic development. He has served in both executive and non-executive roles on the boards of numerous private and publicly listed companies.
Throughout his career, Mr Sumner has consistently demonstrated his expertise in capital markets, successfully raising both debt and equity funding internationally. He has led many companies through to public listing, establishing a proven track record in building and scaling businesses for public markets.
Having spent the majority of his professional life in the Middle East and Asia, Mr Sumner has developed extensive networks within government agencies and the corporate sector worldwide. He is particularly known for his ability to navigate complex geopolitical landscapes and drive outcomes that deliver broad-based value.
In addition to his business achievements, Mr Sumner is the founding trustee of The Sumner Foundation, established in 2019, which reflects his long-standing commitment to philanthropy and social impact.
DR MELINDA FOUTS - EXECUTIVE DIRECTOR
Dr Melinda Fouts is a worldwide recognized and highly decorated psychotherapy coach focusing on individuals, corporate executives and government agencies. Her sector agnostic approach has seen Dr Fouts guide and advise some of the world’s most influential people and entities to ensure that their goals are reached in an effective and ethical manner by allowing leaders to focus on critical and strategic thinking, performance optimization, and leadership skills development.
Dr Fouts holds an MA in Psychology from the Pacifica Graduate Institute; she achieved her PhD in Psychology from Saybrook University in 2013. She is a member of The International Coach Federation, the Leadership Investment, International Association of Top Professionals (IATOP) and sits on the Forbes Coaches Council. She received recognition from the IAOTP as the Top International Coach of the Year in 2020 and received the award for Most Empowered Woman of the Year in 2021. Dr Fouts has been extensively interviewed for her expertise in executive coaching and also her book, Cognitive Enlightenment.
MR ANGUS MCCAFFERY - EXECUTIVE DIRECTOR
Angus McCaffery began his career in the telecommunications sector, co-founding Maintel in 1991. Under his leadership, Maintel successfully listed on the London Stock Exchange, where it remains publicly traded today. Angus continues to be a shareholder and Non-Executive Director of the company, which consistently delivers annual revenues in excess of £100 million.
In 2019, Angus became the cornerstone investor in 4GD, a high-technology defence business at the forefront of data-enabled training solutions, with operational facilities in both the UK and the US.
With a strong pedigree across the telecommunications and defence sectors, Angus brings deep strategic insight and an intrinsic understanding of capital markets.
BRIAN MAIR - GOVERNMENT PROCUREMENT & PROJECT MANAGEMENT - DEFENCE
During a 30 year extensive and varied career in the Royal Navy, specialising in Diving and Explosive Ordnance Disposal, Brian saw operational service in numerous conflicts across the globe. In addition to ship command he also taught Joint Operational Campaign Planning at home and abroad, served in the Permanent Joint Headquarters and was a Project Manager in the Ministry of Defence. After a year as a student of the Defence School of Language, his final appointment was a Diplomatic role in the Middle East.
On leaving the service as a Commander, having completed a Masters Degree in Security & Risk Management, he transitioned smoothly into the civilian world by working in the Port Special Systems department during the construction of a mega port in Abu Dhabi. This was followed by a senior Corporate Security position with SHELL acting as their Regional Security Manager for Africa. This role, based in Lagos, was responsible for creating a secure business operating environment, minimizing loss and, crucially, safeguarding reputation of SHELL in one of the most complex and high threat security regions in the Group. Brian held a similar role in Mozambique with Anadarko, a large US independent company.
HARRI KIVELA - GOVERNMENT PROCUREMENT & PROJECT MANAGEMENT - SPECIAL SITUATIONS
Harri Kivelä brings over 30 years of international leadership experience across the commodities, logistics and transportation, real estate and corporate advisory sectors, with a strong focus on investor relations, financing solutions and strategic development. He has served in executive and non-executive roles, including as chief executive officer, chairman of the board and supervisory board member, in companies across the Nordic and Baltic regions and Central Europe.
Mr Kivelä began his career in the international trade of food products and raw materials into the CEE, organising raw material imports, building distribution networks and managing the transport and logistics behind them. He went on to lead international transport and forwarding operations in Finland and Germany, and has built, led and successfully exited multiple businesses. Today he is Chief Executive Officer of a Swiss advisory and investment company focused on commodities, private equity, real estate and alternative investments, a Management Board Member of a Luxembourg-based real estate investment and fund management platform, and a Supervisory Board member of an Estonian company that owns and operates a port within a free economic zone.
Having worked across the Nordic and CEE regions, Switzerland, Luxembourg, Germany and the United States, Mr Kivelä has developed an extensive international network within the commodities, logistics and investment communities. He is particularly known for combining entrepreneurial drive with hands-on execution and board-level judgment in cross-border business.
JAANUS RIKKAS - REGIONAL DIRECTOR - MIDDLE EAST
Jaanus leads Sumner Global Hub’s business development and strategic partnerships across the Middle East, working closely with government, defence and institutional stakeholders throughout the region.
Based between Europe and the UAE, he brings extensive entrepreneurial and commercial experience spanning security, technology and international business development. With a strong regional network, Jaanus plays a key role in identifying strategic opportunities, strengthening partnerships and connecting clients with the Group’s international procurement, trading and logistics capabilities.
His focus is on expanding Sumner Global Hub’s presence across the GCC, supporting long-term commercial relationships and driving growth within the defence and energy sectors.
AHMAD ABOELYAZEID - REGIONAL DIRECTOR - NORTH AFRICA
Ahmed Aboelyazeid is an Egyptian business professional with 17 years of consultancy experience spanning Public-Private Partnerships (PPP), business strategy, investment, financing, and government projects. His professional focus is on PPP strategy and project development, with an emphasis on connecting public-sector priorities with private-sector capabilities and investment opportunities.
An Economics graduate of the American University in Cairo, Ahmed has worked with multinational companies and government organisations, gaining valuable exposure to diverse institutional environments, strategic priorities, and investment considerations across the public and private sectors.
JUAN NÚÑEZ DODERO - REGIONAL DIRECTOR - LATIN AMERICA
Juan Manuel Núñez is a seasoned senior executive and strategic connector with extensive experience in high-level corporate governance, market development, and risk management across Latin America. He brings deep expertise in aligning corporate strategy with operational excellence, compliance, and cutting-edge technologies, including AI integration and cyber defence solutions.
Throughout his career, Mr Núñez has served in senior leadership roles across international and regional organisations. His earlier background encompasses strategic B2B leadership in multinational environments and the fintech sector.
Renowned for his strategic network, Mr Núñez maintains strong, high-trust relationships with key decision-makers, institutional investors, and defence leadership across Latin America. He is particularly recognised for his ability to navigate complex regulatory environments and forge strategic cross-border partnerships that drive sustainable regional growth.
Mr Núñez holds a degree in Economics from Universidad Ricardo Palma, complemented by executive and specialised studies at the Peruvian War School, New York University (NYU), The George Washington University, and Tecnológico de Monterrey.
JUDY ROBERT - INTERNATIONAL BUSINESS DEVELOPMENT
Mrs Robert has over 30 years of experience in international business development management and government relations. Judy has an impressive proven track record across all sectors with a particular emphasis on Defence systems and technologies. She has sourced, negotiated and closed numerous multi-million-dollar government-funded deals in the Latin American, Caribbean and European markets.
Based in Israel, Judy is fluent in Hebrew, Spanish, English and Portuguese.
LYNDSEY BARRETT - INTERNATIONAL BUSINESS DEVELOPMENT
Lyndsey is a highly experienced international business professional with over 45 years of experience in luxury hospitality, client relations and business development. Her distinguished career includes senior executive positions at some of the world's most prestigious private members' clubs and luxury establishments, including The Ritz Club in Mayfair.
Throughout her career, Lyndsey has cultivated an extensive international network of high-net-worth individuals, family offices, business leaders and influential contacts across Europe, the Middle East, Asia and the Americas. She brings a wealth of experience in relationship management, strategic introductions and delivering exceptional service to an international clientele.
In her role as International Business Development at Sumner Global Hub, Lyndsey leverages her established global relationships and deep understanding of international business cultures to identify new opportunities, develop strategic partnerships and facilitate valuable connections that support the Group's continued growth and international reach.
THOMAS PARK - INTERNATIONAL BUSINESS DEVELOPMENT
Tom Park is a former British Army officer and defence-sector entrepreneur with experience in international defence procurement, strategic business development and government contracting.
During nearly six years in the British Army, Tom served with the Mercian Regiment and subsequently the Ranger Regiment. His military career included commanding infantry soldiers overseas, the selection and training of Ranger candidates, and advising, mentoring and working alongside foreign military forces, including European special forces and specialist military units.
Following his military career, Tom co-founded a specialist defence communications company providing secure connectivity solutions to government and military customers. The company successfully secured a UK Ministry of Defence contract supporting British personnel deployed overseas.
Tom has since worked with Sumner Global Hub and partner American defence businesses, developing international commercial opportunities and working with global partners to facilitate the sourcing, negotiation and supply of defence equipment to government and military customers.
He combines military leadership, entrepreneurial experience and commercial judgement with a strong international network and an understanding of the complexities of defence procurement and government contracting.
DAVID MCGUINESS - INTERNATIONAL FINANCE
David’s background is in real estate investment and development, where he gained experience in transaction structuring, capital formation, and cross-border investment activity. His work has since broadened to include structured transactions and trade finance, with a focus on facilitating access to institutional and private capital and aligning financing solutions with underlying asset and operating strategies across the UK and Europe.
David is responsible for capital partnerships at Sumner Global Hub. His work focuses on structuring and securing appropriate sources of capital to support the firm’s operating platforms, as well as developing and maintaining relationships with lenders, investors, and financing partners.
MANDIP TIWANA - INTERNATIONAL RECRUITMENT
Mandip has over 20 years of International recruitment experience across the healthcare, social care, construction, and labour sectors. Having held various senior industry positions, Mandip has a deep understanding of, and expertise relating to, the supply of human resources for critical industries for both the private and public sectors.
Mandip has been successful in winning multiple large UK government contracts for the supply of manpower under government awarded national framework agreements. She has developed numerous International recruitment campaigns in Southern and Eastern Asia and has a deep understanding of the complex regulatory and immigration systems involved in large scale deployments.
Mandip holds a BA (Hons) in Humanities from the University of Greenwich.
JAMES MACKIE - FINANCE
James is a Chartered Certified Accountant (ACCA) and a member of the Association of Taxation Technicians (ATT), holding specialist qualifications in UK taxation. He also completed the US Enrolled Agent qualification, giving him a working knowledge of tax on both sides of the Atlantic.
James advises a range of clients including charities, companies and private individuals on accounting and tax matters, covering both strategic advisory work and ongoing compliance. His experience includes group reporting, compliance, charity accounts and personal tax, with a particular focus on international and cross-border matters.
James works alongside the Sumner Global Group in a consultant capacity, supporting the board on financial reporting and tax across the group's UK and international operations.
LAURA CHAMBERLAIN - CORPORATE ADMIN & HR
Laura has over 20 years of corporate administration experience spanning executive and board support, office and facilities management, HR, marketing, and logistics. She leads Corporate Administration and HR at Sumner Global Hub, focusing on coordinating business operations and implementing effective systems and processes across international teams.
A History graduate of the University of Manchester, Laura has worked closely with senior leadership across a range of industries and jurisdictions. Her experience has given her a broad understanding of diverse business environments, organisational priorities and the administrative requirements of businesses operating across multiple territories.
The Team
DAVID SUMNER - CHAIRMAN
David Sumner brings over 30 years of global leadership experience across the defence, healthcare, mining, cleantech, and industrial & energy commodity trading sectors, with a strong focus on corporate finance and strategic development. He has served in both executive and non-executive roles on the boards of numerous private and publicly listed companies.
Throughout his career, Mr Sumner has consistently demonstrated his expertise in capital markets, successfully raising both debt and equity funding internationally. He has led many companies through to public listing, establishing a proven track record in building and scaling businesses for public markets.
Having spent the majority of his professional life in the Middle East and Asia, Mr Sumner has developed extensive networks within government agencies and the corporate sector worldwide. He is particularly known for his ability to navigate complex geopolitical landscapes and drive outcomes that deliver broad-based value.
In addition to his business achievements, Mr Sumner is the founding trustee of The Sumner Foundation, established in 2019, which reflects his long-standing commitment to philanthropy and social impact.
DR MELINDA FOUTS - EXECUTIVE DIRECTOR
Dr Melinda Fouts is a worldwide recognized and highly decorated psychotherapy coach focusing on individuals, corporate executives and government agencies. Her sector agnostic approach has seen Dr Fouts guide and advise some of the world’s most influential people and entities to ensure that their goals are reached in an effective and ethical manner by allowing leaders to focus on critical and strategic thinking, performance optimization, and leadership skills development.
Dr Fouts holds an MA in Psychology from the Pacifica Graduate Institute; she achieved her PhD in Psychology from Saybrook University in 2013. She is a member of The International Coach Federation, the Leadership Investment, International Association of Top Professionals (IATOP) and sits on the Forbes Coaches Council. She received recognition from the IAOTP as the Top International Coach of the Year in 2020, and received the award for Most Empowered Woman of the Year in 2021. Dr Fouts has been extensively interviewed for her expertise in executive coaching and also her book, Cognitive Enlightenment.
MR ANGUS MCCAFFERY - EXECUTIVE DIRECTOR
Angus McCaffery began his career in the telecommunications sector, co-founding Maintel in 1991. Under his leadership, Maintel successfully listed on the London Stock Exchange, where it remains publicly traded today. Angus continues to be a shareholder and Non-Executive Director of the company, which consistently delivers annual revenues in excess of £100 million.
In 2019, Angus became the cornerstone investor in 4GD, a high-technology defence business at the forefront of data-enabled training solutions, with operational facilities in both the UK and the US.
With a strong pedigree across the telecommunications and defence sectors, Angus brings deep strategic insight and an intrinsic understanding of capital markets.
BRIAN MAIR - GOVERNMENT PROCUREMENT & PROJECT MANAGEMENT - DEFENCE
During a 30 year extensive and varied career in the Royal Navy, specialising in Diving and Explosive Ordnance Disposal, Brian saw operational service in numerous conflicts across the globe. In addition to ship command he also taught Joint Operational Campaign Planning at home and abroad, served in the Permanent Joint Headquarters and was a Project Manager in the Ministry of Defence. After a year as a student of the Defence School of Language, his final appointment was a Diplomatic role in the Middle East.
On leaving the service as a Commander, having completed a Masters Degree in Security & Risk Management, he transitioned smoothly into the civilian world by working in the Port Special Systems department during the construction of a mega port in Abu Dhabi. This was followed by a senior Corporate Security position with SHELL acting as their Regional Security Manager for Africa. This role, based in Lagos, was responsible for creating a secure business operating environment, minimizing loss and, crucially, safeguarding reputation of SHELL in one of the most complex and high threat security regions in the Group. Brian held a similar role in Mozambique with Anadarko, a large US independent company.
HARRI KIVELA - GOVERNMENT PROCUREMENT & PROJECT MANAGEMENT - SPECIAL SITUATIONS
Harri Kivelä brings over 30 years of international leadership experience across the commodities, logistics and transportation, real estate and corporate advisory sectors, with a strong focus on investor relations, financing solutions and strategic development. He has served in executive and non-executive roles, including as chief executive officer, chairman of the board and supervisory board member, in companies across the Nordic and Baltic regions and Central Europe.
Mr Kivelä began his career in the international trade of food products and raw materials into the CEE, organising raw material imports, building distribution networks and managing the transport and logistics behind them. He went on to lead international transport and forwarding operations in Finland and Germany, and has built, led and successfully exited multiple businesses. Today he is Chief Executive Officer of a Swiss advisory and investment company focused on commodities, private equity, real estate and alternative investments, a Management Board Member of a Luxembourg-based real estate investment and fund management platform, and a Supervisory Board member of an Estonian company that owns and operates a port within a free economic zone.
Having worked across the Nordic and CEE regions, Switzerland, Luxembourg, Germany and the United States, Mr Kivelä has developed an extensive international network within the commodities, logistics and investment communities. He is particularly known for combining entrepreneurial drive with hands-on execution and board-level judgment in cross-border business.
JAANUS RIKKAS - REGIONAL DIRECTOR - MIDDLE EAST
Jaanus leads Sumner Global Hub’s business development and strategic partnerships across the Middle East, working closely with government, defence and institutional stakeholders throughout the region.
Based between Europe and the UAE, he brings extensive entrepreneurial and commercial experience spanning security, technology and international business development. With a strong regional network, Jaanus plays a key role in identifying strategic opportunities, strengthening partnerships and connecting clients with the Group’s international procurement, trading and logistics capabilities.
His focus is on expanding Sumner Global Hub’s presence across the GCC, supporting long-term commercial relationships and driving growth within the defence and energy sectors.
AHMAD ABOELYAZEID - REGIONAL DIRECTOR - NORTH AFRICA
Ahmed Aboelyazeid is an Egyptian business professional with 17 years of consultancy experience spanning Public-Private Partnerships (PPP), business strategy, investment, financing, and government projects. His professional focus is on PPP strategy and project development, with an emphasis on connecting public-sector priorities with private-sector capabilities and investment opportunities.
An Economics graduate of the American University in Cairo, Ahmed has worked with multinational companies and government organisations, gaining valuable exposure to diverse institutional environments, strategic priorities, and investment considerations across the public and private sectors.
JUAN NÚÑEZ DODERO - REGIONAL DIRECTOR - LATIN AMERICA
Juan Manuel Núñez is a seasoned senior executive and strategic connector with extensive experience in high-level corporate governance, market development, and risk management across Latin America. He brings deep expertise in aligning corporate strategy with operational excellence, compliance, and cutting-edge technologies, including AI integration and cyber defence solutions.
Throughout his career, Mr Núñez has served in senior leadership roles across international and regional organisations. His earlier background encompasses strategic B2B leadership in multinational environments and the fintech sector.
Renowned for his strategic network, Mr Núñez maintains strong, high-trust relationships with key decision-makers, institutional investors, and defence leadership across Latin America. He is particularly recognised for his ability to navigate complex regulatory environments and forge strategic cross-border partnerships that drive sustainable regional growth.
Mr Núñez holds a degree in Economics from Universidad Ricardo Palma, complemented by executive and specialised studies at the Peruvian War School, New York University (NYU), The George Washington University, and Tecnológico de Monterrey.
JUDY ROBERT - INTERNATIONAL BUSINESS DEVELOPMENT
Mrs Robert has over 30 years of experience in international business development management and government relations. Judy has an impressive proven track record across all sectors with a particular emphasis on Defence systems and technologies. She has sourced, negotiated and closed numerous multi-million-dollar government-funded deals in the Latin American, Caribbean and European markets.
Based in Israel, Judy is fluent in Spanish, English and Portuguese.
LYNDSEY BARRETT - INTERNATIONAL BUSINESS DEVELOPMENT
Lyndsey is a highly experienced international business professional with over 45 years of experience in luxury hospitality, client relations and business development. Her distinguished career includes senior executive positions at some of the world's most prestigious private members' clubs and luxury establishments, including The Ritz Club in Mayfair.
Throughout her career, Lyndsey has cultivated an extensive international network of high-net-worth individuals, family offices, business leaders and influential contacts across Europe, the Middle East, Asia and the Americas. She brings a wealth of experience in relationship management, strategic introductions and delivering exceptional service to an international clientele.
In her role as International Business Development at Sumner Global Hub, Lyndsey leverages her established global relationships and deep understanding of international business cultures to identify new opportunities, develop strategic partnerships and facilitate valuable connections that support the Group's continued growth and international reach.
THOMAS PARK - INTERNATIONAL BUSINESS DEVELOPMENT
Tom Park is a former British Army officer and defence-sector entrepreneur with experience in international defence procurement, strategic business development and government contracting.
During nearly six years in the British Army, Tom served with the Mercian Regiment and subsequently the Ranger Regiment. His military career included commanding infantry soldiers overseas, the selection and training of Ranger candidates, and advising, mentoring and working alongside foreign military forces, including European special forces and specialist military units.
Following his military career, Tom co-founded a specialist defence communications company providing secure connectivity solutions to government and military customers. The company successfully secured a UK Ministry of Defence contract supporting British personnel deployed overseas.
Tom has since worked with Sumner Global Hub and partner American defence businesses, developing international commercial opportunities and working with global partners to facilitate the sourcing, negotiation and supply of defence equipment to government and military customers.
He combines military leadership, entrepreneurial experience and commercial judgement with a strong international network and an understanding of the complexities of defence procurement and government contracting.
DAVID MCGUINESS - INTERNATIONAL FINANCE
David’s background is in real estate investment and development, where he gained experience in transaction structuring, capital formation, and cross-border investment activity. His work has since broadened to include structured transactions and trade finance, with a focus on facilitating access to institutional and private capital and aligning financing solutions with underlying asset and operating strategies across the UK and Europe.
David is responsible for capital partnerships at Sumner Global Hub. His work focuses on structuring and securing appropriate sources of capital to support the firm’s operating platforms, as well as developing and maintaining relationships with lenders, investors, and financing partners.
MANDIP TIWANA - INTERNATIONAL RECRUITMENT
Mandip has over 20 years of International recruitment experience across the healthcare, social care, construction, and labour sectors. Having held various senior industry positions, Mandip has a deep understanding of, and expertise relating to, the supply of human resources for critical industries for both the private and public sectors.
Mandip has been successful in winning multiple large UK government contracts for the supply of manpower under government awarded national framework agreements. She has developed numerous International recruitment campaigns in Southern and Eastern Asia and has a deep understanding of the complex regulatory and immigration systems involved in large scale deployments
Mandip holds a BA (Hons) in Humanities from the University of Greenwich.
JAMES MACKIE - FINANCE
James is a Chartered Certified Accountant (ACCA) and a member of the Association of Taxation Technicians (ATT), holding specialist qualifications in UK taxation. He also completed the US Enrolled Agent qualification, giving him a working knowledge of tax on both sides of the Atlantic.
James advises a range of clients including charities, companies and private individuals on accounting and tax matters, covering both strategic advisory work and ongoing compliance. His experience includes group reporting, compliance, charity accounts and personal tax, with a particular focus on international and cross-border matters.
James works alongside the Sumner Global Group in a consultant capacity, supporting the board on financial reporting and tax across the group's UK and international operations.
LAURA CHAMBERLAIN - CORPORATE ADMIN & HR
Laura has over 20 years of corporate administration experience spanning executive and board support, office and facilities management, HR, marketing, and logistics. She leads Corporate Administration and HR at Sumner Global Hub, focusing on coordinating business operations and implementing effective systems and processes across international teams.
A History graduate of the University of Manchester, Laura has worked closely with senior leadership across a range of industries and jurisdictions. Her experience has given her a broad understanding of diverse business environments, organisational priorities and the administrative requirements of businesses operating across multiple territories.
The Team
DAVID SUMNER - EXECUTIVE DIRECTOR
David Sumner brings over 30 years of global leadership experience across the defence, healthcare, mining, cleantech, and industrial & energy commodity trading sectors, with a strong focus on corporate finance and strategic development. He has served in both executive and non-executive roles on the boards of numerous private and publicly listed companies.
Throughout his career, Mr Sumner has consistently demonstrated his expertise in capital markets, successfully raising both debt and equity funding internationally. He has led many companies through to public listing, establishing a proven track record in building and scaling businesses for public markets.
Having spent the majority of his professional life in the Middle East and Asia, Mr Sumner has developed extensive networks within government agencies and the corporate sector worldwide. He is particularly known for his ability to navigate complex geopolitical landscapes and drive outcomes that deliver broad-based value.
In addition to his business achievements, Mr Sumner is the founding trustee of The Sumner Foundation, established in 2019, which reflects his long-standing commitment to philanthropy and social impact.
EDUARD RIKKAS - EXECUTIVE DIRECTOR
Eduard Rikkas is a Member of the Management Board of Sumner Global Hub Estonia. He graduated from the Institute of Physical Culture with a specialisation in martial arts coaching.
Eduard served for 21 years in the Estonian Police and Border Guard Board as Commander of a rapid response unit, where he was responsible for leading the unit and overseeing its training. With this unit, he took part in several international missions in different countries and attended training courses in the USA, Italy and several other countries. During his service, he was awarded the rank of Major and received a number of state decorations.
He then joined the Estonian Ministry of Defence where, for four years, he headed the department responsible for military education and oversight, and was again recognised with several awards. Alongside his ministry work, he taught cadets at the Estonian Academy of Security Sciences, covering the use of weapons and special equipment.
After leaving public service, Eduard became CEO and Member of the Management Board of CitySec AS, a company engaged in the retail and wholesale of weapons, ammunition and special equipment. Its clients include both private customers and national defence and security institutions.
EGON HIRVESOO - DEFENCE LOGISTICS
Egon holds specialised qualifications (M.Sc.Eng. and Chem.Eng. in Explosives from Tallinn University of Technology) with 25 years of professional experience in explosives and 40 years of expertise in pyrotechnics and rocketry since 1982. He brings extensive regulatory experience, having served as Head of Division at the Technical Surveillance Authority and working as an expert in European standardisation working groups to draft sector regulations.
His career includes managing blasting operations and safety protocols for 3,200 personnel at Oil Shale Mining Ltd. Since 2001, he has been actively engaged in technical demilitarisation and EOD operations, alongside planning and constructing explosives storage facilities across Estonia, Finland, and Germany.
As the founder and board member of E.A.E Ltd, an explosives consultancy and innovation company, he developed environmentally safe explosives for explosion welding. Additionally, Egon is a certified ADR Class 1, blaster, and pyrotechnic trainer for military and private sectors, holding 2024 competence certificates for explosive material and pyrotechnic product handling organisation.
MARGUS ARUMÄE - DEFENCE LOGISTICS
Margus served his country for over 20 years. He began his service at the Citizenship and Migration Board, where he focused on designing and developing the migration oversight system. He participated in the work of the European Union and various international organisations to establish common rules for combating illegal migration and human trafficking. Additionally, he frequently served as a member of the Estonian delegation during negotiations for international agreements.
He continued his service within the Criminal Investigation Department (CID) of the Estonian Border Guard, where he took part in numerous cross-border operations in cooperation with the border guard services of neighbouring countries.
Since leaving the service, he has been providing consulting services to private clients on matters of compliance and security, including companies in the defence and strategic sectors.
SUMNER GLOBAL HUB ESTONIA OÜ
DAVID SUMNER - EXECUTIVE DIRECTOR
David Sumner brings over 30 years of global leadership experience across the defence, healthcare, mining, cleantech, and industrial & energy commodity trading sectors, with a strong focus on corporate finance and strategic development. He has served in both executive and non-executive roles on the boards of numerous private and publicly listed companies.
Throughout his career, Mr Sumner has consistently demonstrated his expertise in capital markets, successfully raising both debt and equity funding internationally. He has led many companies through to public listing, establishing a proven track record in building and scaling businesses for public markets.
Having spent the majority of his professional life in the Middle East and Asia, Mr Sumner has developed extensive networks within government agencies and the corporate sector worldwide. He is particularly known for his ability to navigate complex geopolitical landscapes and drive outcomes that deliver broad-based value.
In addition to his business achievements, Mr Sumner is the founding trustee of The Sumner Foundation, established in 2019, which reflects his long-standing commitment to philanthropy and social impact.
EDUARD RIKKAS - EXECUTIVE DIRECTOR
Eduard Rikkas is a Member of the Management Board of Sumner Global Hub Estonia. He graduated from the Institute of Physical Culture with a specialisation in martial arts coaching.
Eduard served for 21 years in the Estonian Police and Border Guard Board as Commander of a rapid response unit, where he was responsible for leading the unit and overseeing its training. With this unit, he took part in several international missions in different countries and attended training courses in the USA, Italy and several other countries. During his service, he was awarded the rank of Major and received a number of state decorations.
He then joined the Estonian Ministry of Defence where, for four years, he headed the department responsible for military education and oversight, and was again recognised with several awards. Alongside his ministry work, he taught cadets at the Estonian Academy of Security Sciences, covering the use of weapons and special equipment.
After leaving public service, Eduard became CEO and Member of the Management Board of CitySec AS, a company engaged in the retail and wholesale of weapons, ammunition and special equipment. Its clients include both private customers and national defence and security institutions.
EGON HIRVESOO - DEFENCE LOGISTICS
Egon holds specialised qualifications (M.Sc.Eng. and Chem.Eng. in Explosives from Tallinn University of Technology) with 25 years of professional experience in explosives and 40 years of expertise in pyrotechnics and rocketry since 1982. He brings extensive regulatory experience, having served as Head of Division at the Technical Surveillance Authority and working as an expert in European standardisation working groups to draft sector regulations.
His career includes managing blasting operations and safety protocols for 3,200 personnel at Oil Shale Mining Ltd. Since 2001, he has been actively engaged in technical demilitarisation and EOD operations, alongside planning and constructing explosives storage facilities across Estonia, Finland, and Germany.
As the founder and board member of E.A.E Ltd, an explosives consultancy and innovation company, he developed environmentally safe explosives for explosion welding. Additionally, Egon is a certified ADR Class 1, blaster, and pyrotechnic trainer for military and private sectors, holding 2024 competence certificates for explosive material and pyrotechnic product handling organisation.
MARGUS ARUMÄE - DEFENCE LOGISTICS
Margus served his country for over 20 years. He began his service at the Citizenship and Migration Board, where he focused on designing and developing the migration oversight system. He participated in the work of the European Union and various international organisations to establish common rules for combating illegal migration and human trafficking. Additionally, he frequently served as a member of the Estonian delegation during negotiations for international agreements.
He continued his service within the Criminal Investigation Department (CID) of the Estonian Border Guard, where he took part in numerous cross-border operations in cooperation with the border guard services of neighbouring countries.
Since leaving the service, he has been providing consulting services to private clients on matters of compliance and security, including companies in the defence and strategic sectors.
SUMNER GLOBAL HUB ESTONIA OÜ
DAVID SUMNER - EXECUTIVE DIRECTOR
David Sumner brings over 30 years of global leadership experience across the defence, healthcare, mining, cleantech, and industrial & energy commodity trading sectors, with a strong focus on corporate finance and strategic development. He has served in both executive and non-executive roles on the boards of numerous private and publicly listed companies.
Throughout his career, Mr Sumner has consistently demonstrated his expertise in capital markets, successfully raising both debt and equity funding internationally. He has led many companies through to public listing, establishing a proven track record in building and scaling businesses for public markets.
Having spent the majority of his professional life in the Middle East and Asia, Mr Sumner has developed extensive networks within government agencies and the corporate sector worldwide. He is particularly known for his ability to navigate complex geopolitical landscapes and drive outcomes that deliver broad-based value.
In addition to his business achievements, Mr Sumner is the founding trustee of The Sumner Foundation, established in 2019, which reflects his long-standing commitment to philanthropy and social impact.
EDUARD RIKKAS - EXECUTIVE DIRECTOR
Eduard Rikkas is a Member of the Management Board of Sumner Global Hub Estonia. He graduated from the Institute of Physical Culture with a specialisation in martial arts coaching.
Eduard served for 21 years in the Estonian Police and Border Guard Board as Commander of a rapid response unit, where he was responsible for leading the unit and overseeing its training. With this unit, he took part in several international missions in different countries and attended training courses in the USA, Italy and several other countries. During his service, he was awarded the rank of Major and received a number of state decorations.
He then joined the Estonian Ministry of Defence where, for four years, he headed the department responsible for military education and oversight, and was again recognised with several awards. Alongside his ministry work, he taught cadets at the Estonian Academy of Security Sciences, covering the use of weapons and special equipment.
After leaving public service, Eduard became CEO and Member of the Management Board of CitySec AS, a company engaged in the retail and wholesale of weapons, ammunition and special equipment. Its clients include both private customers and national defence and security institutions.
EGON HIRVESOO - DEFENCE LOGISTICS
Egon holds specialised qualifications (M.Sc.Eng. and Chem.Eng. in Explosives from Tallinn University of Technology) with 25 years of professional experience in explosives and 40 years of expertise in pyrotechnics and rocketry since 1982. He brings extensive regulatory experience, having served as Head of Division at the Technical Surveillance Authority and working as an expert in European standardisation working groups to draft sector regulations.
His career includes managing blasting operations and safety protocols for 3,200 personnel at Oil Shale Mining Ltd. Since 2001, he has been actively engaged in technical demilitarisation and EOD operations, alongside planning and constructing explosives storage facilities across Estonia, Finland, and Germany.
As the founder and board member of E.A.E Ltd, an explosives consultancy and innovation company, he developed environmentally safe explosives for explosion welding. Additionally, Egon is a certified ADR Class 1, blaster, and pyrotechnic trainer for military and private sectors, holding 2024 competence certificates for explosive material and pyrotechnic product handling organisation.
MARGUS ARUMÄE - DEFENCE LOGISTICS
Margus served his country for over 20 years. He began his service at the Citizenship and Migration Board, where he focused on designing and developing the migration oversight system. He participated in the work of the European Union and various international organisations to establish common rules for combating illegal migration and human trafficking. Additionally, he frequently served as a member of the Estonian delegation during negotiations for international agreements.
He continued his service within the Criminal Investigation Department (CID) of the Estonian Border Guard, where he took part in numerous cross-border operations in cooperation with the border guard services of neighbouring countries.
Since leaving the service, he has been providing consulting services to private clients on matters of compliance and security, including companies in the defence and strategic sectors.