Our office is located in the heart of Utrecht

You can visit, call or send us an email

For visitors:
Address: Willemstraat 7, 3511 RJ, Utrecht
Opening hours:

  • Tuesday: closed
  • Wednesday: closed
  • Thursday: 9:00-12:00
  • Friday: closed
  • Saturday: closed
  • Sunday: closed
  • Monday: 9:00-17:00

Phone number: +31 30 2317721

Send us an e-mail:

Our account number:
You can pay the registration fee or make donations to the following account:

SIW Internationale Vrijwilligersprojecten
IBAN: NL28 INGB 0000 0040 75


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