About us

Martin Wientjens has been working in the diamond industry since 1955.
In 1980 he founded his own company: Wiediam Diamonds and started sawing for the diamond tool industry.
In 1998 his two sons joined the company and the range of products was extended.

At present Wiediam is a fast growing, dynamic company. With a relative small and flexible team the market has been explored,
and at this moment Wiediam has excellent contacts all over the world for it's products.

The management team:

  • Martin Wientjens: founder, consulting advisory board
  • Peter Wientjens: managing director, r&d
  • Mark Wientjens: partner, r&d
  • Astrid Wientjens: customer services and administration
  • Menno Kalmann: marketing & sales, tech. consulting