As good as they portray it on their website I've found the truth of whether or not they actually roast their own coffee and they DON'T!
Research and confirmation from the founder has found that:
Stephen from PACT wrote:
The Roast Master: Our search for the UK’s best roast master was a long one. We spoke to a lot of people, from the Twitter celebrity roasters, the competition winners, and the old hands. In the end it was Peter James at James Gourmet who we fell for. He’s not just an alchemist when it comes to roasting, but he understands what we’re trying to achieve, and supports our mission of getting the UK drinking better coffee. We all love him a bit.