SAGE is the country's largest and oldest organization dedicated to improving the lives of lesbian, gay, bisexual and transgender (LGBT) older adults. Their mission is to lead in addressing issues related to lesbian, gay, bisexual and transgender (LGBT) aging.

SAGE offers innovative services and programs to LGBT older people throughout New York City and nationwide through their affiliate network, SAGENet. From arts and culture, to health and wellness, and much more, SAGE's innovative services and programs support thousands of LGBT older people in communities around the country.

On a national level, SAGE also trains aging providers, develops consumer resources, and advocates for public policies to support LGBT older people.