BERU Group is a listed public company since October 1997. A public company usually refers to a company that is permitted to offer its registered securities ( Stock, bonds, etc The company is the leading manufacturer of diesel cold start systems with an estimated world-wide market share of 40% for glow plugs. Diesel or Diesel fuel (ˈdiːzəl in general is any Fuel used in Diesel engines The most common is a specific fractional distillate of petroleum Market share, in Strategic management and Marketing, is the percentage or proportion of the total available Market or Market segment that is For the similar device used in model aircraft engines, see Glow plug (model engine. In the field of ignition technology for petrol engines, BERU is one of the four major manufacturers in Europe. An ignition system is a system for igniting a fuel-air mixture The internal combustion engine is an engine in which the Combustion of Fuel and an Oxidizer (typically air occurs in a confined space called a BERU sets on the expansion within automotive electronics focusing on comprehensive electronic systems solutions for the automotive industry. The automotive industry is the industry involved in the design development manufacture marketing and sale of Motor vehicles In 2007 more than 73 million motor vehicles The company also produces sensor technology and ignition systems for the oil and gas burner industry. A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument An oil is a substance that is in a viscous Liquid state ( "oily") at ambient temperatures or slightly warmer and is Natural gas is a Gaseous Fossil fuel consisting primarily of Methane but including significant quantities of Ethane, Propane, Almost all OE-manufacturers of automobiles, commercial vehicles and engines are BERU's customers. The company's headquarters are located in Ludwigsburg, Germany. Ludwigsburg is a city in Germany, about 12 km (7 miles north of Stuttgart 's city center near the river Neckar. Germany, officially the Federal Republic of Germany ( ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant is a Country in Central Europe.