Like it was said Queen/ Schatt and Morgan/ Tuna Valley use quite a bit of stainless(mainly the latter two). Select Case knives have 154cm, and they put out a ton of stuff in their tru-sharp stainless steel. All Bucks come in stainless except for their semi recent special runs in 5160 and d2. GECs in stainless are somewhat rare, but they are out there. You can still track down USA made Schrades in their Schrade+ stainless. Canal Street Cutlery is a really nice company that recently went out of business. They used stainless and shouldn't be to tough to track down. Then you have customs. That's where you'll start seeing higher end steels becoming more and more common. That's all I can the of at the moment.
High end steel in production traditionals is pretty rare though. But if you can learn to be content with 420/440, then your options become significantly better. Still, carbon steel seems to be the majority(Case excluded).