VIEROL AG was founded in 1977 by Jürgen R. Viertelhaus. Since then, the Oldenburg company has grown steadily and has established itself as an international automotive supplier to the independent aftermarket (IAM). VIEROL have four logistics hubs, Oldenburg Germany, New Jersey USA, Shanghai China and Singapore, reaching 125 countries through their distribution network.

They have two brands covering all major categories, VEMO covers electrical and electronic components, including cam, crank, knock, lambda sensors, coolant, brake, reverse and temperature switches.

VAICO covers all braking, engine air supply management components such as crank/EGR valves, plastic intake manifolds, filtration, cooling hoses, transmission filters, plastic sumps/kits and hydraulic oils.