Gramercy Park Block Association
A community group dedicated to public safety, crime prevention, historic preservation, and quality-of-life issues in and around the Gramercy Park area.
Madison Square Park Conservancy
A nonprofit 501(c)(3) organization dedicated to keeping historic Madison Square Park a bright, beautiful and active public park. The Conservancy raises the funds that support the parks horticulture, maintenance, security and a variety of free cultural programs.