The Gay, Lesbian and Straight Education Network is an organization in the United States that seeks to end discrimination, harassment, and bullying based on sexual orientation, gender identity and gender expression in K-12 schools. GLSEN is headquartered in New York City and the District of Columbia. As of 2009, there are forty chapters across the country representing cities, states, or regions.
Founded in 1972 with the simple act of a mother publicly supporting her gay son, PFLAG is the nation's largest family and ally organization. Made up of parents, families, friends, and straight allies united with people who are lesbian, gay, bisexual, and transgender (LGBT), PFLAG is committed to advancing equality and societal acceptance of LGBT people through its threefold mission of support, education and advocacy.