| Center for Health Policy and Social Change | | 1 year 31 weeks ago | Indonesia |
| Center for Lesbian and Gay Studies (CLAGS) | | 2 years 46 weeks ago | USA |
| Center for Research on Gender and Sexuality | | 2 years 33 weeks ago | USA |
| Center for Research on Health and Sexual Orientation | | 1 year 18 weeks ago | USA |
| Center for the Study of Sexualities - National Central University | | 1 year 18 weeks ago | Taiwan |
| Center for the Study of Women, Gender, and Sexuality | | 1 year 18 weeks ago | USA |
| Centre for African Family Studies | | 2 years 45 weeks ago | Kenya |
| Centre for Interdisciplinary Gender Studies, Leeds University | | 2 years 33 weeks ago | UK |
| Centre for Interdisciplinary Research on AIDS (CIRA) | | 2 years 33 weeks ago | USA |
| Centre for the Study of AIDS | | 2 years 45 weeks ago | South Africa |
| Centre for the Study of Sexual Dissidence | | 2 years 33 weeks ago | UK |
| Chulalongkorn University | | 2 years 50 weeks ago | Thailand |
| City University of New York | | 2 years 46 weeks ago | USA |
| CiudadaniasX - Activismo Cultural y Derechos Humanos | | 1 year 24 weeks ago | Peru |
| Columbia University | | 2 years 33 weeks ago | USA |
| Consultation of Investment in Health Promotion (CIHP) | | 2 years 48 weeks ago | Vietnam |
| Cornell University | | 2 years 33 weeks ago | USA |
| CREA | | 2 years 49 weeks ago | India |
| Curtin University of Technology | | 2 years 47 weeks ago | Australia |
| Department of Human Sexuality Studies | | 2 years 27 weeks ago | USA |
| Duke University | | 2 years 33 weeks ago | USA |
| EngenderHealth | | 2 years 33 weeks ago | International |
| Family Health International | | 2 years 33 weeks ago | International |
| Federacion Argentina de Lesbianas, Gays, Bisexuales y Trans | | 1 year 24 weeks ago | Argentina |
| Ford Foundation | | 2 years 33 weeks ago | International |