The story
In 1954, BMW formed BMW Studiengesellschaft für Triebwerkbau GmbH as part of West German efforts to resume aircraft engine production. The company was renamed BMW Triebwerkbau GmbH in 1957, and began producing General Electric J79-11A turbojets for the Lockheed F-104G Starfighter program.
In 1960, MAN AG acquired 50 percent of BMW Triebwerkbau GmbH. MAN AG purchased the remainder of the company in 1965, and merged it with MAN Turbomotoren GmbH to form MAN Turbo GmbH.
In Autumn 1968, MAN Turbo and Daimler-Benz formed Entwicklungsgesellschaft für Turbomotoren GmbH (Motoren- und Turbinen-Union München GmbH from 1969) as a 50/50 joint venture, combining their aircraft engine development and manufacturing interests. MAN Turbo remained a separate company under MAN AG.
From Wikipedia’s article on MAN Turbo, shared under CC BY-SA 4.0.3