The story
VDO was founded by Adolf Schindling and the result of a merger between DEUTA (Deutsche Tachometer-Werke GmbH, English: German Speedometer Works, Ltd.) and OTA Apparate GmbH (Offenbacher Tachometer-Werke GmbH, English: (City of) Offenbach Speedometer Works, Ltd.) in Frankfurt am Main in 1929. VDO stands for "Vereinigte DEUTA - OTA, English: United DEUTA - OTA."
In 1991, the company was acquired by Mannesmann. In 1999, Mannesmann was acquired by Vodafone and VDO was offered for sale. In 2000, the company was acquired by Siemens and re-branded as Siemens VDO. Siemens sold VDO to Continental in 2007. With the spin-off of the Continental Automotive division in 2025, VDO became part of the newly founded company Aumovio.
From Wikipedia’s article on VDO (company), shared under CC BY-SA 4.0.4
