The Greenwich Tree Conservancy Inc. was established on January 4th, 2007 as a non-profit 501(c)3 organization open to all interested citizens; governed by a board and advised by an advisory board. Their mission is to preserve and enhance the tree and forest resources of Greenwich to benefit the community, health and quality of life.
RappFLOW is the county's nonprofit watershed conservation organization, its mission to protect and conserve local rivers and streams and educate the public about the importance of water resources.