Saugus has many active local organizations:
- The Saugus Historical Society works to cultivate an interest in the history of the Town of Saugus, and to collect and preserve all matter pertaining to the Town's history and citizenry. The organization was founded in 1928.
- The Saugus Chamber of Commerce started in 1971 as the Route One Businessmen's Association. The name was changed in 1988 to the Route One Area Business Association and then to the Saugus Chamber of Commerce in 1991. The Saugus Business Partnership is a separate and distinct organization formed in 2003.
- Saugus Action Volunteers for the Environment (SAVE) was incorporated in 1973 and works toward a "better quality of life through environmental concern and action." It serves both as a volunteer organization performing duties such as helping to maintain the local tree farm, and also acts as a political organization, staging protests and taking public stands on local laws.
- The Saugus River Watershed Council is a non-profit organization founded in 1991 to protect and restore the natural resources of the Saugus River watershed. The Council is working to improve water quality, restore river habitat and fisheries, educate students about the environment, and promote public access and enjoyment of the watershed.
- The Theatre Company of Saugus, founded in 1968 as the "Town-Criers," produces several amateur plays each year. It is New England's third oldest non-professional theatrical group, and is noted for attracting celebrities for both directorial responsibilities and the stage. In the past, they have hosted thespian and president William Howard Taft in several roles. In recent years, the TCS had the honor of performing the play “Interview” by Jean-Claude Van Itallie for audiences in Belgium.
Other local organizations include the Friends of Saugus Town Hall, the Friends of Breakheart Reservation, the Saugus High School Alumni Association, Boy Scout Troops 61 and 62, the Essex UFOlogists, and the Hammersmith Quilters' Guild.
Saugus also has local chapters of the Veterans of Foreign Wars, American Legion, Masons, Rotary Club, Lions, Benevolent and Protective Order of Elks, the Knights of Columbus, the Kiwanis Club, and the Rotary Club.