Sports Interactive Limited is a British video game developer based in London, best known for the Football Manager series. Founded by brothers Oliver and Paul Collyer in July 1994, the studio was acquired in 2006 by Sega, a Japanese video game publisher, and became part of Sega Europe. In addition to its work on Football Manager, the studio has also created a number of other sports-management simulations, including NHL Eastside Hockey Manager and Championship Manager Quiz, and is the former developer of Championship Manager. History.
https://en.wikipedia.org/wiki/Sports_Interactive