Who are we?

From lefto to right: Emile Vos, Marcus Hartkopf, Martijn Leenders, Peter Paul Mulkens

We met more than a decennia ago through the international food trade business. We partnered-up as 4 Sources, together we have more than 100 years of international food sales experience. Throughout the years we became more than just colleagues, sharing the same passions and ambitions brought us closer in business and friendship.

Emile Vos is our cheese and cool fresh specialist with an extended worldwide network built up over decades.

Growing the business with existing partners and the starting up new business is his goal.

His passion: building up great relationships and doing great business with business partners all over the world which last a lifetime.

Living in the North of Holland with his wife and two daughters.


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Marcus Hartkopf is our tea and breakfast cereal specialist with strong connections in these industries and is our senior member.

What you see is what you get, no sales pitch that’s typical Marcus.

Living in Southwest of Germany with his wife, daughter and cats.


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Martijn Leenders is our frozen and fresh specialist with years of experience as export manager with our USA clients.

Martijn speaks many languages and can be found on most of the USA exhibitions representing the 4 Sources team.

Living in the south of Holland at the German border.


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Peter Paul Mulkens is our business developer and legal specialist with years of experience in international trading and food business.

Maintaining the client relationship, cracking numbers and setting up contracts is his passion.

Moving between the south of Holland and Italy where he lives.


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