• It all starts with
  • personal chemistry
Martijn Peters
Martijn Peters

Martijn Peters

founder and managing director

Martijn has 20 years of experience in M&A and strategy consulting. Before founding DEX in January 2015, Martijn was partner and vice-president at international consultancy firm Solving Efeso (now Efeso Consulting), where he was head of the international M&A practice. Martijn started his international career with Sara Lee in the Netherlands and Brazil. He studied business administration at the University of Groningen, marketing at UCLA in Los Angeles, financial management at the University of Amsterdam and completed executive courses at Harvard Business School in Boston and Kellogg Business School in Chicago. Martijn has a broad experience as an international deal maker and is the president of Globalscope.

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Koen Andeweg
Koen Andeweg

Koen Andeweg

director

Koen is a seasoned advisor and deal maker with international experience in various industries including software, ICT, business services, manufacturing and pharma.

Prior to joining DEX international M&A in 2015, Koen was Corporate Finance & Strategy Consultant at Efeso Consulting and business development manager at EY. Koen started his career in Investor Relations at the Siemens Corporate Headquarters in Munich. He studied business administration at the Erasmus University in Rotterdam and the San Francisco State University and completed executive education courses at Kellogg Business School in Chicago.

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Floris de Klerk
Floris de Klerk

Floris de Klerk

director

As a passionate sailor, Floris started his professional career at Nautor’s Swan Benelux. He gained experience from a wide range of assignments including management of international yacht racing campaigns and facilitating international transactions of sailing yachts. Joining DEX in 2017, Floris adapted his years of specialized client relationships to the M&A industry, using the same qualities to deliver for his clients today.

Floris studied Business Engineering in Amsterdam and Management at Nijenrode Business University, including course at Universidad de Los Andes in Bogota, Colombia.

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Mark Klein Haneveld
Mark Klein Haneveld

Mark Klein Haneveld

manager

Mark joined the DEX team in 2017 and has since worked on assignments in a wide range of industries. He has a Master’s degree in Finance from Tilburg University. During his Bachelor’s program, Mark studied abroad gaining international experience at the Chinese University of Hong Kong.

Mark began his career with DEX as an analyst and is currently manager M&A.

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Wencke Willemze
Wencke Willemze

Wencke Willemze

office manager

Wencke joined DEX as our office manager, bringing with her the experience she gained in the professional services industry with firms such as Interpolis, De Hypotheker, and Audax.

Wencke specialized in Linguistics and Artificial Intelligence while she studied Communication/Information Sciences at Tilburg University. She also completed a study in Graphic Design.

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Jorn Tax
Jorn Tax

Jorn Tax

consultant

Jorn works as consultant at DEX. He obtained his BSc Economics and MSc Finance at Tilburg University.

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Guido Peeters
Guido Peeters

Guido Peeters

analyst

Guido works as an analyst at DEX since 2024 and is studying Msc. Finance at Tilburg University. Prior to this, Guido completed the Msc. Strategic Management and the Bsc. Business Economics, for which he studied for a semester in Rome at the Luiss Guido Carli business school.

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Martijn Peters
Martijn Peters

Martijn Peters

founder and managing director

Martijn has 20 years of experience in M&A and strategy consulting. Before founding DEX in January 2015, Martijn was partner and vice-president at international consultancy firm Solving Efeso (now Efeso Consulting), where he was head of the international M&A practice. Martijn started his international career with Sara Lee in the Netherlands and Brazil. He studied business administration at the University of Groningen, marketing at UCLA in Los Angeles, financial management at the University of Amsterdam and completed executive courses at Harvard Business School in Boston and Kellogg Business School in Chicago. Martijn has a broad experience as an international deal maker and is the president of Globalscope.

E-mail
Koen Andeweg
Koen Andeweg

Koen Andeweg

director

Koen is a seasoned advisor and deal maker with international experience in various industries including software, ICT, business services, manufacturing and pharma.

Prior to joining DEX international M&A in 2015, Koen was Corporate Finance & Strategy Consultant at Efeso Consulting and business development manager at EY. Koen started his career in Investor Relations at the Siemens Corporate Headquarters in Munich. He studied business administration at the Erasmus University in Rotterdam and the San Francisco State University and completed executive education courses at Kellogg Business School in Chicago.

E-mail
Floris de Klerk
Floris de Klerk

Floris de Klerk

director

As a passionate sailor, Floris started his professional career at Nautor’s Swan Benelux. He gained experience from a wide range of assignments including management of international yacht racing campaigns and facilitating international transactions of sailing yachts. Joining DEX in 2017, Floris adapted his years of specialized client relationships to the M&A industry, using the same qualities to deliver for his clients today.

Floris studied Business Engineering in Amsterdam and Management at Nijenrode Business University, including course at Universidad de Los Andes in Bogota, Colombia.

E-mail
Mark Klein Haneveld
Mark Klein Haneveld

Mark Klein Haneveld

manager

Mark joined the DEX team in 2017 and has since worked on assignments in a wide range of industries. He has a Master’s degree in Finance from Tilburg University. During his Bachelor’s program, Mark studied abroad gaining international experience at the Chinese University of Hong Kong.

Mark began his career with DEX as an analyst and is currently manager M&A.

E-mail
Wencke Willemze
Wencke Willemze

Wencke Willemze

office manager

Wencke joined DEX as our office manager, bringing with her the experience she gained in the professional services industry with firms such as Interpolis, De Hypotheker, and Audax.

Wencke specialized in Linguistics and Artificial Intelligence while she studied Communication/Information Sciences at Tilburg University. She also completed a study in Graphic Design.

E-mail
Jorn Tax
Jorn Tax

Jorn Tax

consultant

Jorn works as consultant at DEX. He obtained his BSc Economics and MSc Finance at Tilburg University.

E-mail
Guido Peeters
Guido Peeters

Guido Peeters

analyst

Guido works as an analyst at DEX since 2024 and is studying Msc. Finance at Tilburg University. Prior to this, Guido completed the Msc. Strategic Management and the Bsc. Business Economics, for which he studied for a semester in Rome at the Luiss Guido Carli business school.

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‘It takes 20 years to build a reputation and 5 minutes to ruin it. When you think about that, you’ll do things differently.’

– warren buffett