Contact us

For general enquiries, please consult our frequently asked questions or email us at 
For information regarding ICSID hearing facilities, including their availability in non-ICSID cases, contact our hearings organization team at
For information on case-related invoices and refunds, contact our finance team at
1818 H Street, N.W.
MSN C3-300
Washington, D.C. 20433

Phone No. (202) 458-1534
Fax No. (202) 522-2615

Visitors/ Local Deliveries Address: 
1225 Connecticut Ave., N.W. (known within the World Bank Group as the C Building)
3rd Floor
Washington, D.C. 20036

Pre-arranged deliveries may be made between 9:00 a.m. and 6:00 p.m., Monday through Friday. Upon arrival, please call an ICSID staff member or ICSID’s general number ((202) 458-1534) in order for ICSID staff to accept delivery.