Might i suggest you join Vereinigung Cockpit e.V. and then ask for those contracts? And even then they might not hand them out, as contractual issues might be covered under a basic NDA. Apart from that of course cultivating friendships in those companies can get direct inside information, but those are quite often just personal snapshots and do not explain everything. That said, CLA are quite often very complex and the important stuff can be quite hidden away in some cases.
BTW, one can just drop into VCs office in the MAC and pay them a visit, usually someone is around and able to talk to you.