Brown, Boveri & Cie (BBC) was a Swiss group of electrical engineering companies. It was founded in Baden, Switzerland, in 1891 by Charles Eugene Lancelot Brown and Walter Boveri who worked at the Maschinenfabrik Oerlikon. In 1970 BBC took over the Maschinenfabrik Oerlikon. In 1988 it merged with ASEA to form ABB.
The company produced DC motors, AC motors, generators, steam turbines, gas turbines, transfomers and the electrical equipments of locomotives. Some of BBC's technology went into German U-boats of World War II, such as the depth controls.