Take our 2025 Non-monogamy Community Survey!
Take part in the largest annual study of non-monogamous identities and experiences worldwide to help shape public understanding and drive advocacy efforts.
Advancing rights and acceptance for
non-monogamous families and relationships
of all varieties.
OPEN is a grassroots, nonprofit organization dedicated to fostering the non-monogamy movement by advancing cultural acceptance, building political power, and supporting non-monogamous communities and leaders.
Are you with us?
Help grow the movement to normalize non-monogamy.
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