Expansive Circle comes from a coaching practice that specializes in working with people who are interested in or practicing ethical non-monogamy (ENM). It was built as a coach-guided online community to give people an ongoing space to learn and ask questions about communication, attachment, intimacy, and boundaries between individual coaching sessions. Single, partnered, and married members are all welcome.

Membership is organized into three tiers, from self-paced learning to closer one-on-one coaching support, so members can engage at the level that fits their own relationship goals.