| PPProctor Products Co., Inc. | Woodinville | WA | — | ◇ UNVERIFIED |
| PMProcutt Machine LLC | Houston | TX | — | ◇ UNVERIFIED |
| PIProdev INC | Salisbury | MA | — | ◇ UNVERIFIED |
| PIProdex, INC. | Red Hill | PA | — | ◇ UNVERIFIED |
| PLPro-dig, LLC | Wathena | KS | — | ◇ UNVERIFIED |
| PAProduct and Tooling Technologies INC | Fraser | MI | — | ◇ UNVERIFIED |
| PIProduct Integration & Manufacturing INC. | Rochester | NY | — | ◇ UNVERIFIED |
| PAProduction Anodizing Corp, Plant 2 | Adel | GA | — | ◇ UNVERIFIED |
 Production Engineering Corporation | St Anthony Village | MN | — | ◇ UNVERIFIED |
| Production Engineering Corporation | Minneapolis | MN | — | ◇ UNVERIFIED |
| PMProduction Machines and Manufacturing INC | Mcewen | TN | — | ◇ UNVERIFIED |
| PMProduction Machining of Alma | Alma | MI | — | ◇ UNVERIFIED |
| PPProduction Pattern Shop INC | Oakland | CA | — | ◇ UNVERIFIED |
| PSProduction Spring LLC | Troy | MI | — | ◇ UNVERIFIED |
| PSProduction Stamping INC | Monticello | MN | — | ◇ UNVERIFIED |
| PTProduction Threaded Parts CO | North Branch | MI | — | ◇ UNVERIFIED |
| PTProduction Tool - Manufacturing INC | Plymouth | MN | — | ◇ UNVERIFIED |
| PSProduct Solutions Inc. | Anaheim | CA | — | ◇ UNVERIFIED |
| PCProfab Corporation | Ocala | FL | — | ◇ UNVERIFIED |
| PMProfab Metal Products, INC | Lynn | MA | — | ◇ UNVERIFIED |
| PFPro Fabrication INC | Madison Lake | MN | — | ◇ UNVERIFIED |
| PFPro Fab Welding and Machine INC | Lakeville | MN | — | ◇ UNVERIFIED |
| PCProfessional Cryogenic Metallurgy & Coating, LLC | Cumming | GA | — | ◇ UNVERIFIED |
| PFProfessional Finishing INC | Richmond | CA | — | ◇ UNVERIFIED |
| PIProfessional Instruments CO | Rochester | MN | — | ◇ UNVERIFIED |
| PIProfessional Instruments Company | Hopkins | MN | — | ◇ UNVERIFIED |
| PMProfessional Machine & Tool Co., INC. | Gallatin | TN | — | ◇ UNVERIFIED |
| PTProfessional Tool Grinding of Louisville INC | Okolona | KY | — | ◇ UNVERIFIED |
| PPProfile Plastics LLC | Chanhassen | MN | — | ◇ UNVERIFIED |
| PRProfile Racing INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| PTProfiles Tools & Engineering, INC. | Tempe | AZ | — | ◇ UNVERIFIED |
| PTProfile Tool and Engineering INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| PMPro-form Manufacturing LLC | Benicia | CA | — | ◇ UNVERIFIED |
| PPPro-Form Plastics, Inc. | Columbus | IN | — | ◇ UNVERIFIED |
| PCProfusion Corporation | Largo | FL | — | ◇ UNVERIFIED |
| PMProgressive Machine Tool LLC | Jackson | TN | — | ◇ UNVERIFIED |
| PMProgressive Manufacturing LLC | Fremont | MI | — | ◇ UNVERIFIED |
| PMProgressive Molding Technologies Inc. | Medina | OH | — | ◇ UNVERIFIED |
| PPProgressive Plastics, INC. | Clover | SC | — | ◇ UNVERIFIED |
| PPProgressive Powder Coating | Modesto | CA | — | ◇ UNVERIFIED |
| PTProgressive Tool Co., INC. | Endwell | NY | — | ◇ UNVERIFIED |
| PTProgressive Tool & Die, INC. | Meadville | PA | — | ◇ UNVERIFIED |
| PMProgress Machine INC. | Morgan City | LA | — | ◇ UNVERIFIED |
| PMProgress Manufacturing Company, LLC | Union City | IN | — | ◇ UNVERIFIED |
| PRProgress Rail - Arab Bearing Shop | Arab | AL | — | ◇ UNVERIFIED |
| PRProgress Rail - Peru, in | Peru | IN | — | ◇ UNVERIFIED |
| PRProgress Rail Service | Rocklin | CA | — | ◇ UNVERIFIED |
| PRProgress Rail Services | Patterson | GA | — | ◇ UNVERIFIED |
| PRProgress Rail Services | Mojave | CA | — | ◇ UNVERIFIED |
| PRProgress Rail Services Corporation | Muncie | IN | — | ◇ UNVERIFIED |
