Just look at that headline. I try to make a joke about height and the game series name "Buzz", but the exlamation mark at the end completely ruins the joke.
Anyway, Relentless Software are (a) Indie, and (b) successful according to the Develop 100.

Michael French, Editor of Develop said, “The Develop 100 acknowledges the real victors in the games industry’s tireless pace to create games that are both creative and commercial – the developers themselves. With the UK studios in the list putting on a stronger showing than ever before for the 2007 edition, it’s great to see independents such as Relentless rise up the ranking.”

The second placed UK independent developer, Relentless rose twenty-three places on the previous year to sit at twentieth overall – against heavyweights including Electronic Arts and Nintendo. A massive achievement for the fledgling studio, founded in late 2003 by experienced industry figures Andrew Eades and David Amor.

Andrew Eades, Development Director of Relentless commented, “This is testament to the strength of development talent in the UK and the rise of social gaming. The buzzer and other non-standard controllers make all the difference to a new audience – until recently our industry hasn’t catered well for the mainstream player, it’s great to be attracting new players to video games.”