John Harold Coleman Haynes

Hopkins Manufacturing Corp. engages in the manufacture of towing products and functional accessories for the automotive and recreational vehicles. It provides towing electrical products, snow and ice tools, cleaning tools, motorcycle and safety helmets, fluid handling products, fuel filter funnels, vehicle organizers, mitts, sponges, drying and detailing towels, premium tools, power accessories, auto air fresheners, booster cables, driver awareness solutions, dusting and drying solutions, auxiliary braking systems, high performance mud guards and garage solutions. The company was founded by E. L. Hopkins and R. E. Hopkins in 1953 and is headquartered in Emporia, KS.

HaynesPro BV publishes automotive data and media information, which includes maintenance data, repair information and motor management diagnostics. It focuses on delivering automotive technical data in an electronic format to the European automotive aftermarket. The company was founded by Alexander George Kwarts in 1995 and is headquartered in Leusden, the Netherlands.

Part of Haynespro Holding BV, Haynespro (UK) Ltd. provides information technology services. The company is based in Near Yeovil, UK and was founded in 2000.