All of them? It's unheard of at a AAA development level to sell an engine without full source access; CryENGINE, Unreal, iD Tech, and Gamebryo all offer full source licenses, to name a few examples.
Any 3rd party engine used by a AAA game will have full source. Unreal Engine, Crytek, Source, etc. Sometimes those engines have cheap, no-source indie targeted licenses but the high end games paying the high price tag has source.
Which commercial engines do offer full source code access?