http://www.qualtekmfg.com/
These guys are in Colorado Springs and do great work.

Have you thought about buying a small laboratory oven to process your own prototypes? Using well sealed SS tool wrap will yield a very clean part with little to no oxidation. I've made my own shearing dies and molds this way with great success.

Now if you're looking for certification and all that I completely understand the need to go the professional route.