| PMPr Machine Works, INC. | Ontario | OH | — | ◇ UNVERIFIED |
| PLPro3D, LLC | Tucson | AZ | — | ◇ UNVERIFIED |
| PWPro-Arc Welding LLC | Mahopac | NY | — | ◇ UNVERIFIED |
| PBPro Blast Technology INC | Keewatin | MN | — | ◇ UNVERIFIED |
| PEProcess Engineering Company, INC. | Jackson | MS | — | ◇ UNVERIFIED |
| PBProcesses By Martin INC | Lynwood | CA | — | ◇ UNVERIFIED |
 Process Manufacturing LLC | North Logan | UT | — | ◇ UNVERIFIED |
| PMProcess Materials, INC | Livermore | CA | — | ◇ UNVERIFIED |
 Process Stainless Lab, INC | Santa Clara | CA | — | ◇ UNVERIFIED |
| PSProcess Stainless Labs, INC. Dba Advanced Electropolishing Technologies | Milpitas | CA | — | ◇ UNVERIFIED |
| PLProcex LTD | Kent | OH | — | ◇ UNVERIFIED |
| PPProcino Plating | Blades | DE | — | ◇ UNVERIFIED |
| PCPro Coatings | San Fernando | CA | — | ◇ UNVERIFIED |
| PPro-con | Lees Summit | MO | — | ◇ UNVERIFIED |
| PMProcutt Machine LLC | Houston | TX | — | ◇ UNVERIFIED |
| PIProdev INC | Salisbury | MA | — | ◇ UNVERIFIED |
| PLPro-dig, LLC | Wathena | KS | — | ◇ UNVERIFIED |
| PAProduct and Tooling Technologies INC | Fraser | MI | — | ◇ UNVERIFIED |
| PAProduction Anodizing Corp, Plant 2 | Adel | GA | — | ◇ UNVERIFIED |
 Production Engineering Corporation | St Anthony Village | MN | — | ◇ UNVERIFIED |
| PMProduction Machines and Manufacturing INC | Mcewen | TN | — | ◇ UNVERIFIED |
| PMProduction Machining of Alma | Alma | MI | — | ◇ UNVERIFIED |
| PMProduction Metal Finishers, INC | Richmond | VA | — | ◇ UNVERIFIED |
| PSProduction Stamping INC | Monticello | MN | — | ◇ UNVERIFIED |
| PTProduction Threaded Parts CO | North Branch | MI | — | ◇ UNVERIFIED |
| PTProduction Tooling CO | Memphis | TN | — | ◇ UNVERIFIED |
| PTProduction Tool - Manufacturing INC | Plymouth | MN | — | ◇ UNVERIFIED |
| PFProducts Finishing Inc/erie | Erie | PA | — | ◇ UNVERIFIED |
| PFPro Fab Machine Shop Addition | Hartselle | AL | — | ◇ UNVERIFIED |
| PFPro Fabrication INC | Madison Lake | MN | — | ◇ UNVERIFIED |
| PFPro Fab Welding and Machine INC | Lakeville | MN | — | ◇ 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 |
| 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 |
| PCProfusion Corporation | Largo | FL | — | ◇ UNVERIFIED |
| PMProgressive Machine Tool LLC | Jackson | TN | — | ◇ UNVERIFIED |
| PMProgressive Metal Finishers INC | Bessemer | AL | — | ◇ UNVERIFIED |
| PMProgressive Metal Forming INC | Hamburg | MI | — | ◇ 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 |
| PRProgress Rail Services-danvers Trackwork | Danvers | IL | — | ◇ UNVERIFIED |
| PWProgress Wire Products CO. | Cleveland | OH | — | ◇ UNVERIFIED |
| PMProimtu Mmi, LLC | Tonopah | NV | — | ◇ UNVERIFIED |
| PEProject Engineering Company | Springboro | OH | — | ◇ UNVERIFIED |
| PLProjekt Lab LLC | Fort Myers | FL | — | ◇ UNVERIFIED |
| PPro-lok | Orange | CA | — | ◇ UNVERIFIED |
| PIPro-machine, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| PMPro Machine LLC | Wheatland | PA | — | ◇ UNVERIFIED |
| PPPro-manufactured Products, INC. | Plainfield | CT | — | ◇ UNVERIFIED |
| PMPromaxima Manufacturing LTD. | Houston | TX | — | ◇ UNVERIFIED |
| PPromet | Sunnyvale | CA | — | ◇ UNVERIFIED |
| PRPrometheus RF LLC | Rochester | NY | — | ◇ UNVERIFIED |
| PMPro Mobile Blasting LLC | Tucson | AZ | — | ◇ UNVERIFIED |
| PDPronto Drilling INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PPPronto Products Co. | San Diego | CA | — | ◇ UNVERIFIED |
| PPPronto Products Co. | San Diego | CA | — | ◇ UNVERIFIED |
| PPProof Products USA LLC | Columbus | OH | — | ◇ UNVERIFIED |
| PPProof Products USA LLC | Columbus | OH | — | ◇ UNVERIFIED |
| PRProos Real Estate, LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| POProperties of Jaguar Precision LLC. | Gardnerville | NV | — | ◇ UNVERIFIED |
| PIPropulsion, INC. | Hudson | WI | — | ◇ UNVERIFIED |
| PSPro Stamp LLC | Walker | MI | — | ◇ UNVERIFIED |
| PMProStar Manufacturing Inc | Pasadena | TX | — | ◇ UNVERIFIED |
| PSProsteel Security Products INC | Provo | UT | — | ◇ UNVERIFIED |
| PIPro-strip Indy, LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PFProsys Finishing Technologies, INC. | Cranston | RI | — | ◇ UNVERIFIED |
| PEProtech Engineering INC | Elk River | MN | — | ◇ UNVERIFIED |
| PTPro Tech Machining INC | Litchfield | MN | — | ◇ UNVERIFIED |
| PSProtection Services, INC. | Savannah | GA | — | ◇ UNVERIFIED |
| PCProtek Cnc Sales CORP | Simi Valley | CA | — | ◇ UNVERIFIED |
| PLProtellect LLC | Augusta | GA | — | ◇ UNVERIFIED |
| PIProto-cam INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| PCProto Circuits of Florida INC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| PCProtofab Corporation | Troy | MI | — | ◇ UNVERIFIED |
| PHProtofab Holdings LLC | Blaine | MN | — | ◇ UNVERIFIED |
| PTProtofab Technologies L.L.C. | Valley View | PA | — | ◇ UNVERIFIED |
| PGProto Gage INC | Sterling Heights | MI | — | ◇ UNVERIFIED |
| PCProtomet Corporation | Oak Ridge | TN | — | ◇ UNVERIFIED |
| PPProton Power, INC. | Lenoir City | TN | — | ◇ UNVERIFIED |
| PTPro Tool & Die LLC | Chesterfield | MI | — | ◇ UNVERIFIED |
| PSProto Space Eng INC | South El Monte | CA | — | ◇ UNVERIFIED |
| PProtoworx | Minot | ME | — | ◇ UNVERIFIED |
| PMProturn Mfg. INC. | Oregon City | OR | — | ◇ UNVERIFIED |
| PEProvidence Electroplating Works INC | Providence | RI | — | ◇ UNVERIFIED |
| PLProvidence Leasing & Rental LLC | Berthoud | CO | — | ◇ UNVERIFIED |
| PWPro Weld LLC | Chesterfield | MI | — | ◇ UNVERIFIED |
| PCProwler Capital Group LLC | Plainview | NY | — | ◇ UNVERIFIED |
 Prowse Manufacturing Group | Arlington | WA | — | ◇ UNVERIFIED |
| PSPr Steel Products CORP | Ponce | PR | — | ◇ UNVERIFIED |
| PHPrudent Holdings Usa, LLC | Decatur | AL | — | ◇ UNVERIFIED |
| PCPsc Custom LLC Dba Polar Service Centers | Salem | IL | — | ◇ UNVERIFIED |
| PIPsf Industries | Seattle | WA | — | ◇ UNVERIFIED |
| PSPsi Sales INC | Irvington | AL | — | ◇ UNVERIFIED |
