The Sienna Plantation Community Services Foundation (SPCSF) is a non-profit corporation established in 1999 to invest in the future of Sienna Plantation. Designed to supplement and complement the functions of the existing homeowners' association, the Foundation is an entity entirely separate from and independent of Sienna/Johnson Development or the Sienna Plantation Residential Association. The Foundation enhances the services and resources of the community through the sponsorship of programs, activities and events in and around Sienna.