|Genre||Musical reissues and repertoire|
|Founders||Terry Shand, Cliff Dane, Jon Beecher|
|Headquarters||Chessington, Surrey, United Kingdom|
|Parent||Alliance Entertainment (from 1994)
Sanctuary Records Group (from 2000)
Castle Communications was acquired by the American music distributor Alliance Entertainment in 1994 and in 2000 it was absorbed into Sanctuary Records Group. The label dissolved when Sanctuary became a subsidiary of Universal Music Group in 2007. Its catalogue of masters is now owned by BMG Rights Management.
Starting out as a mid-price catalogue reissue specialist, with labels including The Collector Series and Dojo, Castle grew into the largest European owner of repertoire outside the major record companies. It purchased a number of record catalogues, including Pye, Piccadilly, Bradley's, Bronze, Black Sabbath, Sugar Hill, Transatlantic, Beserkley, All Platinum and Solar. They possessed most of the Transatlantic and Trailer catalogue.
Starting in the early 1980s, they released compilations and reissued work by Fairport Convention, John Renbourn, Barbara Dickson, Steeleye Span, The Watersons, Richard Thompson, Geoff Turton and many others. They have also diversified to reissue several early albums by The Fall as well as "Pink Years" and "Blue Years" albums by Tangerine Dream, and compilations by Nurse with Wound and Current 93. They have also released a comprehensive compilation featuring songs by Canadian rock band, Triumph.
In the 1980s they were notable for releasing many heavy metal compilations albums under the series name Metal Killers. Interest in these licensed releases led them to form their own heavy metal imprint Raw Power, to sign and promote new rock acts, rather than to just license older product from other more established labels. The first signing to the Raw Power label was the NWOBHM act Hell's Belles, releasing their debut album and single in 1985. After several years, the Raw Power imprint was retired with the alleged waning of heavy metal's popularity in the UK.
- "Castle Communication PLC". PLC Magazine. 1 September 1994. Retrieved 2011-07-03.
- Masson, Gordon; Ed Christman (8 April 2000). "U.k.'s Sanctuary Buys Castle Music". AllBusiness.com. Dun & Bradstreet. Retrieved 2011-06-15.
- "RHINO AND CASTLE COMMUNICATIONS PLC BUY SUGAR HILL CATALOG MASTERS". PR Newswire. 12 June 1995. Retrieved 2011-07-03.