» Aero Propulsion Technologies    Offering Rotax Aircraft Engine sales, maintenance, overhaul and repair. Related parts and accessories for recreational aviation. Based in Saint-Lazare, Quebec, Canada. (In English and French)    http://www.rotaxservice.com/

» Leading Edge Air Foils    Dealer of ultralight and experimental aircraft parts and supplies including flight and engine instruments. Based in Lyons, Wisconsin USA.    http://www.leadingedge-airfoils.com/

» Pacific Northwest Aero    Offering vortex generators for experimental/homebuilt aircraft. Based in Bend, Oregon, United States.    http://www.pnwaero.com

» Ship It AOG    Searchable database of aircraft parts and ground support equipment. Specialize in Challenger parts and equipment. Based in Addison, Texas.    http://www.shipitaogllc.com

» Sky's The Limit    Offering a disc brake system to manufacturers and owners of ultralight powered parachutes. Located in Willows, California USA.    http://www.skysthelimitusa.com

» UL Parts    Offering ultralight, homebuilt engines, parts, and accessories via an online store. Based in Vernon, BC Canada.    http://www.ulparts.com