Steam Turbine Manufacturers
| Resource International (Westerville, OH) |
| Rolls-Royce Allison (Evansville, IN) |
| Rolls-Royce Corp (Indianapolis, IN) |
| Rolls-Royce Energy Systems (Maineville, OH) |
| Royal Brass & Hose Co Inc (Marietta, GA) |
| Williams International (Walled Lake, MI) |
| Woodward Governor Co (Rockford, IL) |
| Zurn Cast Metals (Erie, PA) |
| Arbee Sales Corp (Chicago, IL)
Manufacturer |
| Parker Store, a division of Ritter Technology (Zelienople, PA)
Manufacturer |
| Tompkins Industries (Portland, OR)
Manufacturer |
| Wooster Hydrostatics (Wooster, OH)
Manufacturer |
| Aai Utah Tech Ctr (Ogden, UT) |
| Access Platform Inc (Ontario, CA) |
| Acme Bearing & Supply Co (Fort Bragg, CA) |
| Acraline Products Inc (Tipton, IN) |
| Act (Pompano Beach, FL) |
| Advance Supply (Farmington, NM) |
| Advance Turbine Support Inc (Crystal River, FL) |
| Advance Turbine Svc (Sweetwater, TX) |
| Advanced Fluid Power Inc (Theodore, AL) |
| Advanced Fluid Systems Inc (Lawrenceville, GA) |
| Advanced Turbine Components (Rural Hall, NC) |
| Advanced Turbine Products (Palm Beach Garde, FL) |
| Advanced Turbine Svc Llc (Meriden, CT) |
