- Seacoast Outright: LGBTQA Organization for 21 and under
- TransGender New Hampshire (TGNH): state-wide organization for visibility, education, & support
- PFLAG Seacoast: meets monthly in Portsmouth on 1st Thursday of the month from 6-8pm.
Contact: sgseacoast@pflagnh.org - PFLAG New Hampshire & List of PFLAG Chapters in NH
- GLSEN New Hampshire: resources for K-12 Educators to address anti-gay bias
- Just the Average Gay Guys: 20s & 30s social group
- Seacoast Gay Men: social group
- Women Singing OUT!
- AIDS Response Seacoast
- The Joan G Lovering Health Center, formerly the Feminist Health Center (Greenland, NH)
- Equality Health Center, formerly Concord Feminist Health Center (Concord, NH)
- Bay Windows: New England's largest GLBT newspaper
- Rainbow Families of New Hampshire: Email List
- New Hampshire Civil Liberties Union (NHCLU)
- Gay and Lesbian Advocates and Defenders (GLAD) of New England
- List of New Hampshire LGBT Rights / Laws
- New Hampshire Freedom to Marry Coalition
- Manchester Outright
- Chiltern: New England's largest LGBT outing & recreation club
- Durham Human Rights Commission town of Durham, NH