Hartswood FilmsHartswood Films is a British television production company founded by Beryl Vertue in 1979. They have also produced dramas such as ''Jekyll'', as well as documentaries, and the 1990s ITV/BBC sitcom ''Men Behaving Badly''.
In 2009, Hartswood opened a production office in Cardiff, which works alongside BBC Wales' "drama village" in Cardiff Bay. The company's first Cardiff-based production is ''Sherlock'', co-created by Steven Moffat. Provided by Wikipedia