Columbia
Columbia Records is the oldest brand name in recorded sound. Founded in January 1889 in Washington DC as the Columbia Phonograph Co. by Edward D. Easton, the company first sold phonograph cylinders and later disc records.
It opened a British operation shortly afterwards. This was sold in 1922 to its own management, and then the independent Columbia Graphophone Company Ltd. itself purchased its almost bankrupt former parent in 1925. This was then merged with The Gramophone Co. Ltd., which had been set up in the UK in 1896. This company was incorporated as Electric & Musical Industries Ltd. (EMI) in 1931. US anti-trust laws forced the UK company to divest itself of its US operations that year.