- Headquarters and Regional Center for Asia
- Y.C. James Yen Center
- Silang, Cavite 4118
- Philippines
- Tel/Fax: +63 46 414 3216
- information@iirr.org
- yencenter@iirr.org
- US Office
- 40 Exchange Place, Suite 1205
- New York, New York 10005
- USA
- Phone: + 1 212 880 9147
- Fax: + 1 212 880 9148
- us.office@iirr.org
- Africa Regional Center
- P.O. Box 66873-00800
- Nairobi, Kenya
- Tel: +254-20-237-0039
- Fax: +254-20-444-8148
- admin@iirr.org, africa@iirr.org
- Ethiopia Country Office
- P.O. Box 7931
- Addis Ababa, Ethiopia
- Tel: +251-11-3212864
- Fax: +251-11-3213859
- ethiopia@iirr.org
- Uganda Country Office
- Plot 6, Charles Lwanga Road
- Ministers Village, Ntinda
- P.O. Box 35536
- Kampala, Uganda
- Tel: +256-414-286-331
- uganda@iirr.org
