International Human Powered Vehicle Association (IHPVA):An association of national associations and organizations, dedicated to promoting improvement, innovation and creativity in the use of human power, especially in the design and development of human-powered vehicles.
British Human Power Club: Fosters all aspects of human-powered vehicles for competitive, recreational and utility activities, stimulates innovation in design and development, and promotes the use of HPV's in a wide range of activities.
HPV Canterbury: A group of people in and around Christchurch, New Zealand, with a common interest in making and using human powered vehicles.
HPV Club Denmark: Promotes interest in human powered vehicles in Denmark. Events and results, history and general information. [Dansk, Deutsch, English]
Human Powered Vehicle Association (HPVA): The United States sanctioning body for races and other sporting events and for new records in human powered land, water and air vehicles.
Human Powered Vehicles of Southern Ontario: Membership organization of human-powered vehicle enthusiasts. Site provides photos, articles, record attempts and general information.
Michigan Human Powered Vehicle Association: Features information on the group, its activities, and related resources and links.
Minnesota Human Powered Vehicle Association (MnHPV): Features support and networking for HPVers and 'bent riders. Includes homegrown recumbent photos, events calendar, and contact details.
Oregon Human Powered Vehicles: Recumbent riding club serving Oregon and Southwest Washington. Provides links to other recumbent sites and FAQs.
OzHPV: Organized HPV events in Australia. Includes event information and schedule.
WISIL HPVers Human Powered Vehicles: Wisconsin/Illinois based group specializing in the construction of racing recumbent bicycles and human powered vehicles.