RUAG can do all three of them.
I don't think they have a Learjet rating.
can you recommend to do this together with a major inspection?
Definitely, will reduce the costs and downtime significantly, since the cabin needs to be anyway emptied for the inspection.
If you are looking for Heavy Metal work, talk to Duncan Aviation in Battlecreek, MI, USA.
I do recommend them as well, and to the best of my knowledge, they have contracts with companies in Europe for warranty work, if required