Marius de Vries

CEO

rotterdam, zuid-holland, netherlands

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Arenal Mining & Dredging

CEO

Hogeschool van Amsterdam

Delft University of Technology

Hogeschool Rotterdam

Chief Executive Officer at casema.nl

Freelance Editor at casema.nl

Hans Castel

Bestuurslid at casema.nl

Consultancy and Interim-management MKB en Non Profit at versatel.nl