United FP Management, LLC is owned by American Securities, a leading U.S. private equity firm that invests in market- leading North American companies with annual revenues generally ranging from $200 million to $2 billion and/or $50 million to $200 million of EBITDA. Founded in 1992 in Dover, NH, Planet Fitness is one of the largest and fastest-growing franchisors and operators of fitness centers in the United States by number of members and locations.