The following is a list of existing and defunct organizations concerned with the advancement of lesbian, gay, bisexual or transgender servicemembers and veterans of national armed forces.
Australia
Defence Force Lesbian Gay Bisexual Transgender and Intersex Information Service (DEFGLIS)
Canada
LGBT Purge Fund
Rainbow Veterans Canada
Netherlands
Pink Army
Stichting Homosexualiteit en Krijgsmacht (Foundation Homosexuality and Armed Forces)
United States
American Military Partner Association (formerly known as Campaign for Military Partners)(defunct) American Veterans for Equal Rights (formerly known as Gay, Lesbian & Bisexual Veterans of America) Blue Alliance Knights Out Modern Military Association of America (The American Military Partner Association and OutServe-SLDN merged in 2019 to form this new organization) OutServe-SLDN USNA Out Veterans Benevolent Association (defunct) Transgender American Veterans Association