- The Trevor Project: national organization providing crisis intervention and suicide prevention to LGBT youth
- Parents, Families and Friends of Lesbians and Gays (PFLAG)
- Gay, Lesbian, and Straight Education Network (GLSEN)
- National Gay and Lesbian Task Force (NGLTF)
- Human Rights Campaign (HRC)
- National Center for Transgender Equality (NCTE)
- Transgender Law and Policy Institute
- American Civil Liberties Union (ACLU) LGBT Rights Project: Current legal and legislative information
- Lambda Legal
- Gay & Lesbian Advocates & Defenders (GLAD) - New England
- Gay and Lesbian Alliance Against Defamation (GLAAD)
- Equality Forum
- National Consortium of Directors of LGBT Resources in Higher Education
- The American Institute of Bisexuality
- Bisexual Resource Center
- Gender Education and Advocacy (GEA)
- Intersex Society of North America (ISNA)
- Project 1138 (federal marriage benefits)
- [LGBT] Immigration Equality