City of Sebastian 1225 Main Street, Sebastian, FL 32958, 772-589-5330, Provides information on local city services and local government offices in the Sebastian area. more... 

Sebastian River Area Chamber of Commerce 700 Main Street, Sebastian, FL 32958, 772 -589-5969, Promotes and supports local businesses and industries in the Sebastian, North Indian River County, and Southern Brevard County areas plus provides relocation information.