Founded in Hampton, New Hampshire, Planet Fitness, Inc. is a fitness center franchisor with a mission to provide affordable, high-quality fitness experiences in a welcoming, non-intimidating environment. The company operates through three segments: Franchise, Corporate-Owned Stores, and Equipment. It offers gym memberships and fitness equipment sales, focusing on making fitness accessible to a broad audience across the United States, Puerto Rico, Canada, Panama, Mexico, and Australia.

Notable affiliated people include the company's founders and key investors who have supported its growth. Planet Fitness has achieved significant milestones, including extensive market penetration and brand recognition as a leading fitness franchise. Its impact is evident in its widespread presence and commitment to fostering a healthier lifestyle for millions of members worldwide.