Barking Dog Studios
From Liquipedia Counter-Strike Wiki
Barking Dog Studios was a company that helped with Counter-Strike Beta 5.0 by creating two maps (Backalley and Train) and assisting Valve with polishing the game. They also worked on "spiffying up the interface."[1]
Barking Dog Studios was acquired by Rockstar Games in August 2002, and became known as Rockstar Vancouver. The studio was closed down in July 2012 and merged with Rockstar Toronto.