With roots in Rotterdam, started his professional career in 1988 with General Electric, who he served for 13 years in various commercial, marketing and senior management positions in the UK, Benelux and Hong Kong. Since 2001 Kees Jan is has been an entrepreneur, initially as Managing Partner of a advertising and market research firm (VDM-Dataview). As off 2006 he started his own agency, aptly named Buro Rietveld (www.buro-rietveld.nl): professional communication services to a wide range of B2B and B2C clients with inhouse creatives, designers and communication strategy experts. Additional professional ventures include an telecommunications infrastructure development company (Mabin), investments in various e-commerce scale ups, techfunds and StartupBootcamp in Amsterdam.
As board member, Kees Jan endeavor to spend time and energy on helping other organizations and institutions with their ambitions such as Theater Walhalla, Zangexpress, Classic Young Masters, Vokaal Talent Nederland, Comite ter Behartiging van Nationale Belangen and Stichting KinderOncologie Rotterdam.