Aiir makes great stuff, I remember when it was G Media out of Sheffield and just did radio websites, it's developed into a good company making great products, and the addition of PlayoutOne has made it an end-to-end solution especially for small and remote broadcasters.
It's perhaps relevant to this thread that the three major commercial radio broadcasters in the UK are all foreign owned: Global (Bahamas/Ireland); Bauer (Germany) and News UK (part of the Murdoch operation).