contact us. for inquiries about jobs and services, please contact a local randstad expert in your country. see countries randstad global head office. Diemermere 25, NL-1112 TC Diemen P.O. Box 12600, NL-1100 AP Amsterdam T +31 (0)20 569 5911 You can find the route description to our head office on Google Maps (Visitors traveling by car can use our parking garage for free.) contact our global head office. a trusted human partner. By combining our passion for people with the power of today’s technology, we will create an experience that is inherently more human.