[1][2] The society hosts exhibits, markets and community events and provides lectures and other educational programs.

[4] Greenwich Historical Society is accredited by the American Alliance of Museums.

[5] Further it is a member of Historic Artists Homes and Studios, having a permanent collection of John Henry Twachtman paintings[6][7] and is one of 21 museums of the Connecticut Art Trail.

[8] The society is headquartered at 47 Strickland Road in the Cos Cob section of Greenwich, Connecticut and is managed by the appointed board of trustees and a team of approximately 20 part and full-time staff.

Due to growing interest and collections, the society was looking for a permanent location by the 1950s which they ultimately found in Bush-Holley House, which was acquired in 1957.