- Reseau ACCESS Network (formerly AIDS Committee of Sudbury)
- AIDS Committee of Thunder Bay is ELEVATE NWO
- AIDS Committee of Guelph and Wellington County
- AIDS Niagara Positive Living Niagra
- AIDS Committee of London (Ontario) is Regional HIV/AIDS Connection London
- AIDS Committee of Ottawa
- AIDS Committee of Toronto
- Alliance for South Asian AIDS Prevention
- Asian Community AIDS Services
- The Gilbert Centre – Simcoe County to Muskoka
- HIV411
- The AIDS Network Hamilton, Halton, Haldimand, Norfolk & Brant
- The AIDS Committee of Cambridge, Kitchener, Waterloo & Area
- AIDS Committee of Durham
- Bruce House
- Casey House
- CAYR Community Connections
- Fife House
- Hemophilia Ontario
- HARS HIV/AIDS Regional Services (Kingston)
- MOYO (formerly, Peel HIV/AIDS Regional Network)
- PARN Peterborough AIDS Resource Network
- Positive Pathways (Windsor AIDS Committee)
- HIV Resources Ontario
- 2-Spirited People of the First Nations
- ACTION Positive
- BLACKCAP Black Coalition for AIDS Prevention
- Canadian Aboriginal AIDS Network, Inc.
- Canadian AIDS Society
- HIV Legal Network
- Canadian AIDS Treatment Information Exchange (CATIE)
- Centres for Disease Control & Prevention, Atlanta, GA
- HALCO HIV/AIDS Legal Clinic of Ontario
- HIV Network of Edmonton Society
- International Council of AIDS Service Organizations
- Let's Stop AIDS
- Ontario Aboriginal HIV/AIDS Strategy
- Ontario AIDS Network
- Prisoners with HIV/AIDS Support Action Network (PASAN)
- Teresa Group
- Toronto People with AIDS Foundation
- Women and HIV/AIDS INITIATIVE (WHAI)
- Patrick 4 Life: Raising HIV/AIDS Awareness & Education