Mark Olthuis

Mark Olthuis is currently the Managing Director at Castor Marine, a position Mark has held since January 2017. Prior to this role, Mark was the Managing Director at Watum from April 2001 to April 2021. Additionally, Mark served as the IT Manager at Five Oceans Services GmbH from 2001 to January 2018. Mark graduated from Hanze in 2006 with a Bachelor of Commerce degree in Marketing. Mark also attended Ommelander College from 1994 to 1999, earning a degree in HAVO.