I had some wheels powder coated by these guys a few years ago. Aside from the fact that I'm not a big fan of powder coating when it comes to wheels, they did a good job . There's a place in your neck of the woods that looks like a similar operation to them called CTW .
Rim Pro Inc. - Expert Alloy Wheel Repair & Refinishing
Connecticut Wheel Repair -Wheel Repair & Refinishing CT