Robert Bosch GmbH is a German diversified technology-based corporation which was started in 1886 by Robert Bosch in Stuttgart, Germany.
Robert Bosch GmbH is the world's largest supplier of automobile components and has business relationships with virtually every automobile company in the world.
The Bosch Group comprises more than 275 subsidiary companies. In addition to auto-component supply business, which brings in more than 90% of its revenues, the company produces industrial machinery and hand tools. It also owns 50% of Bosch-Siemens Hausgeräte, the European appliance maker. Bosch's Blaupunkt unit is a main manufacturer of vehicle audio equipment. The subsidiary Bosch Rexroth produces hydraulic, electric, and pneumatic machinery for applications ranging from automotive to mining.
About 50 percent of Bosch's worldwide annual sales are produced in automotive technology. Bosch invented the magneto, a predecessor of the alternator, which sparked most of the earliest internal combustion engines. Bosch also invented the anti-lock braking system (ABS), and as time passed, Bosch became a leader in such specialized fields as traction control systems (TCS), the Electronic Stability Programme (ESP).