We work as part of a strong team. Our team has people that supplement and enhance each other. A unit of co-operative, driven professionals. People that work hard and play hard, for great results and lots of fun.
The Mandaat team
Associate Partners
Diederik van den Biggelaar and Janco Duvekot know what it’s like to break a sweat. Diederik explains. ‘A personal approach is self-evident to us, precisely because we have years of experience, including as entrepreneurs. We know what responsibility means, the strains upon a businessperson. So we can quickly sense what our client is looking for.’

After Heineken, Diederik worked at Samas as group executive, GM at De Boer Temporary Structures, owner-manager of Perfecta, founding partner of iKi Beer, and as senior partner at Custom Management. He has been one of the owners of Mandaat for over 9 years now.

Janco has established himself as the lynchpin of Mandaat’s International Desk. With Mandaat joining the WIL Group, the London-based Worldwide Interim Leadership Group, Janco has become a leader regarding their cross-border placements within the Dutch business community.
Officemanager
Tom Linthorst is al geruime 3,5 jaar de officemanager voor Mandaat. Momenteel studeert hij Human Resources aan de Hogeschool van Amsterdam.
After Heineken, Diederik worked at Samas as group executive, GM at De Boer Temporary Structures, owner-manager of Perfecta, founding partner of iKi Beer, and as senior partner at Custom Management. He has been one of the owners of Mandaat for over 9 years now.