They have a technology co-operation agreement (TCA) with Additive Industries. They are in partnership in as much as they are working together. The official list of original partners of Additive Industries is different.
By European standards they are a class bunch of industry partners and if they are looking to deliver the mass production model that Mark spoke about then i'm happy with having this team as the driving force behind it. As i have mentioned being in the mass market section is the holy grail of software virality and from what Mark said the other night it sounds like PR3D will be in those machines when they roll out in 12-18 months.