The Tewksbury Knights of Columbus is a non-profit organization filled with men of faith and action. Members participate in charitable events that vary in cause and scope. The Tewksbury organization has a banquet hall on Main Street that is available for booking for special occasions, such as wedding receptions.
The Veterans of Foreign Wars (VFW) organization exists to support veterans and their families. The VFW and its auxiliaries have approximately 2.2 million members and 8,100 posts worldwide. The group works to "honor the dead by helping the living" through its many charitable associations and advocacy for veterans on a local and national level.
The Tewksbury Rod & Gun Club holds meetings on the first and third Tuesday of each month, beginning at 8pm. The club has a function hall seating 125 people, with kitchen facilities, which can be rented by members. The club offers courses in boating education, hunter education, and the NRA/MA Basic Pistol safety program.