Just stumbled across the 2008 Music Week guide to UK radio stations. MW is the trade publication of the UK Music Industry and this PDF seems to have been created for subscribers to their free weekly newsletters (you can sign up here). Meantime click on the map above to download the hi res wall chart – which includes a key with contact information for all the stations.
The phone numbers and postal addresses will probably still be correct for most of them, but it’s likely the names of some personnel (and even some of the stations) may have changed since 2008. It’s probably be safest to phone the switchboard and check before making direct contact.
Alternatively, you might want to conside lashing out on the latest edition of the Music Week Directory – which they call “the definitive guide to companies active in the UK music and media industry – record companies, music publishers, managers, recording studios, venues, you name it – they’re all listed here.” It’ll set you back £32+VAT. Click below for the mail order page: