The Barcud Derwen Group was an independent group of television and AV facilities in Cardiff, Wales which claimed to be the largest in the UK outside London. It is now in administration.
The Barcud Derwen Group Wikipedia
The original company, Barcud, was formed in 1982 by independent producers, to provide TV production facilities, originally for independent companies based in Caernarfon, Gwynedd working for S4C. However the group now provides facilities for producers working for all of Wales' broadcasters, as well as many network and international producers and broadcasters.
The merger with Derwen  - a Cardiff based post production facility - in 1992 created Barcud Derwen. The new company then began a process of expansion. In 1990(?) the company issued shares to the public to finance the building of Studio 1 in Caernarfon. The company is owned by its 200+ shareholders.
The Barcud Derwen Group sold its share in the previously owned or part owned: Men from Mars - now part of Century Communications,. Platform Post  and The Farm 
In 2010, Barcud Derwen ran into cash-flow problems and Grant Thornton were brought into find a buyer when it was "unable at trade through its current cash-flow difficulties and should enter administration".
Barcud Derwen (Scotland) traded as Arc Facilities, 40 Dalintober Street, Glasgow, successfully acquired by CTMS on Friday 28-6-2010. CTMS (Creative & Technical Media Services), also own 422 Manchester. The buy-out consisted of part CTMS and part Arc staff to take the company forward.