I think people are at cross-wires here. The UK Decca and the US Decca are/were two different companies. The UK company was based on the Albert Embankment in London. They were prime developers and manufaturers of RADAR equipment for the MOD and foreign export. Yes they did turn down The Beatles' but so did all the other major labels at the time, including EMI. It was George Martin who got them signed to the parlaphone subsidary of EMI.