I must confess I hadn't come across Spitfire Audio prior to the show, but the stirring sound of strings caught my ear as I walked by.
Turns out that composers Paul Thomson & Christian Hensona, composers working mainly in the fields of film, TV and games got together around 7 years ago, hired a really nice recording studio, got in a bunch of musicians and started to build their own sample library, with emphasis not so much in the software instrument as the performance aspects of the sound sets.
The compositional tools were initially used by a small group of composers - roll forward a few years, and they decided to release libraries on a commercial basis - some of the new releases were highlighted at the show.
Hans Zimmer (yeah, he was one of the group ;-) has recorded an ensemble of four percussionists; the library is released as Hans Zimmer Percussion: HZ01 - there's a behind-the-scenes video on YouTube of its making, and you'll find the complete product listing on the Spitfire Audio website.
Meantime we have founder Paul Thomson telling us a bit about Spitfire - including the rather laudable fact that the musicians involved do actually get royalties from the sales - cool.