| OTOlsen's Tool Grinding INC | South Gate | CA | — | ◇ UNVERIFIED |
| OIOlson Industries, INC. | Atkinson | NE | — | ◇ UNVERIFIED |
| OCOmco Cast Metals, INC. | Winchester | IN | — | ◇ UNVERIFIED |
| OCOmega Consolidated Corporation | Hilton | NY | — | ◇ UNVERIFIED |
| OMOmega Machine & Tool, INC. | Mentor | OH | — | ◇ UNVERIFIED |
| OTOmega Tool CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OMOm Machine & Tool LLC | Portland | OR | — | ◇ UNVERIFIED |
| OMOmni Measurement Systems | Winooski | VT | — | ◇ UNVERIFIED |
| OPOmni Precision | Houston | TX | — | ◇ UNVERIFIED |
| OPOmni Precision, INC. | Houston | TX | — | ◇ UNVERIFIED |
| ODOn Demand Edm INC | Blaine | MN | — | ◇ UNVERIFIED |
| OTOneida Tool Corporation | Redford | MI | — | ◇ UNVERIFIED |
| OSOne Simple Company, LLC | Mesa | AZ | — | ◇ UNVERIFIED |
| ODOnesource Distributors LLC | San Diego | CA | — | ◇ UNVERIFIED |
| OSOne Source Tool Supply | Southampton | NY | — | ◇ UNVERIFIED |
| OTOne Ton Welding, Inc. | Panama | IA | — | ◇ UNVERIFIED |
| OAOnex Automation | Duarte | CA | — | ◇ UNVERIFIED |
| OCOnsite Calibartion Service INC | Louisville | KY | — | ◇ UNVERIFIED |
| OSOn Spot Portable Machine CO INC | Livonia | MI | — | ◇ UNVERIFIED |
| OTOn the Mean, Machine, LLC | Grand Rapids | OH | — | ◇ UNVERIFIED |
| OFOostman Fabricating & Welding, INC. | Westmont | IL | — | ◇ UNVERIFIED |
| OOOpEx OpCo Inc. | Minneapolis | MN | — | ◇ UNVERIFIED |
| OIOPMP, Inc. | Tracy | CA | — | ◇ UNVERIFIED |
| OPOptima Precision, Inc. | San Jose | CA | — | ◇ UNVERIFIED |
| OPOptimum Parts Company | Holyoke | MA | — | ◇ UNVERIFIED |
| OIOregon Industrial Repair INC | Salem | OR | — | ◇ UNVERIFIED |
| OMOregon Machine Works, INC. | Canby | OR | — | ◇ UNVERIFIED |
| OEOriginal Exhaust Manufacturers INC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| OMOrion Manufacturing LLC | Orange | CA | — | ◇ UNVERIFIED |
| OPOrion Properties Group LLC | New Prague | MN | — | ◇ UNVERIFIED |
| OIOrluck Industries INC | Otsego | MN | — | ◇ UNVERIFIED |
| ODOrnalux Design Company, INC. | Oakland | CA | — | ◇ UNVERIFIED |
| OCOrrbilt Compressors, INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| OMOscar Macias and Sandra L. Macias | Gilroy | CA | — | ◇ UNVERIFIED |
| OMO&S Machine Shop, LLC | Latrobe | PA | — | ◇ UNVERIFIED |
| OSOtten Screw Products Co-otten Screw Products CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OTOutlook Tool, Inc. | Dayton | OH | — | ◇ UNVERIFIED |
| OTOutlook Tool, Inc. | Dayton | OH | — | ◇ UNVERIFIED |
| OUOver Under Real Estate, LLC | Riverton | NJ | — | ◇ UNVERIFIED |
| OMOviso Mfg | Fremont | CA | — | ◇ UNVERIFIED |
| OMOwens Machine & Manufacturing | Abilene | TX | — | ◇ UNVERIFIED |
| OPOwens Precision | Carson City | NV | — | ◇ UNVERIFIED |
| OPOwens Precision, INC. | Mound House | NV | — | ◇ UNVERIFIED |
| OMOxbow Machine Prod INC | Livonia | MI | — | ◇ UNVERIFIED |
| ODOzark Die Casting | Saint Clair | MO | — | ◇ UNVERIFIED |
| PPPablo Precision | Oakland Park | FL | — | ◇ UNVERIFIED |
| PSPacesetter Safety, Inc. | Santa Clarita | CA | — | ◇ UNVERIFIED |
| PAPacific Air Cargo Transfer Systems, Inc | Auburn | WA | — | ◇ UNVERIFIED |
| PPPacific Precision Grinding INC | Gardena | CA | — | ◇ UNVERIFIED |
| PSPacific Swiss & Manufacturing, Inc. | Tempe | AZ | — | ◇ UNVERIFIED |
| PTPacific Tool, Die & Stampings | Brunswick | OH | — | ◇ UNVERIFIED |
| PTPacific Tool, Inc. | Redmond | WA | — | ◇ UNVERIFIED |
| PWPacific Water Jet | Escondido | CA | — | ◇ UNVERIFIED |
| PWPacific Welding Services | Asan | GU | — | ◇ UNVERIFIED |
| POPackage One, INC. | Schenectady | NY | — | ◇ UNVERIFIED |
| PDPackaging Dynamics LTD | Bohemia | NY | — | ◇ UNVERIFIED |
| PTPac Tec, LLC | Milton | WI | — | ◇ UNVERIFIED |
| PMPadnos Manufacturing INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| PFPainted Feather Precision LLC | Ramsey | MN | — | ◇ UNVERIFIED |
| PEPak Electric | Milpitas | CA | — | ◇ UNVERIFIED |
| PHPaladin Holdings, LLC | Ira Township | MI | — | ◇ UNVERIFIED |
| PMPaladin Manufacturing LLP | Marietta | OK | — | ◇ UNVERIFIED |
| PPPalese Proto Tech, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| PAPall Aeropower CORP Fort Myers | Fort Myers | FL | — | ◇ UNVERIFIED |
| PBPalm Beach Iron Works, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| PMPals Machining INC | Owatonna | MN | — | ◇ UNVERIFIED |
| PMPamco Machine Works INC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| PAP and J Precision Machine LLC | Chelmsford | MA | — | ◇ UNVERIFIED |
| PPPanhandle Packing & Gasket, Inc. | Lubbock | TX | — | ◇ UNVERIFIED |
| PDParadigm Development INC | North Plains | OR | — | ◇ UNVERIFIED |
| PEParadigm Equipment LLC | Springboro | OH | — | ◇ UNVERIFIED |
| PIParadox Intellectual Properties, INC. | Chiefland | FL | — | ◇ UNVERIFIED |
| PMParagon Machine Company, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| PMParagon Model & Tool CO | Wixom | MI | — | ◇ UNVERIFIED |
| PRParagon Rio Grande, LLC | Brownsville | TX | — | ◇ UNVERIFIED |
| PSParagon Steel Rule Dies, INC. | Rochester | NY | — | ◇ UNVERIFIED |
 Paramount Industrial Machining INC | Oak Park | MI | — | ◇ UNVERIFIED |
| PMParason Machine, INC. | Deep River | CT | — | ◇ UNVERIFIED |
 Paravis Industries INC Dba United Cnc Machining | Auburn Hills | MI | — | ◇ UNVERIFIED |
| PIParisi, INC. | Lewiston | ME | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Hpd | Marysville | OH | — | ◇ UNVERIFIED |
| PMParkside Machine & Fabrication | Carthage | MO | — | ◇ UNVERIFIED |
| PSPark Street Machine INC. | Muskegon Heights | MI | — | ◇ UNVERIFIED |
| PMParkway Machine & Metal Works, INC. | Saraland | AL | — | ◇ UNVERIFIED |
| PPPar_metal Products INC. | North Arlington | NJ | — | ◇ UNVERIFIED |
| PIPartco, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| PLPartsBadger LLC | West Bend | WI | — | ◇ UNVERIFIED |
| PPPassaic Pioneer Properties CO. | Passaic | NJ | — | ◇ UNVERIFIED |
 Patriot Machining and Fabrication LLC | Roseville | CA | — | ◇ UNVERIFIED |
| PPPattison Precision Products, INC. | Broken Arrow | OK | — | ◇ UNVERIFIED |
| PPPaul Precision Machine INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| PPPavyer Printing Machine Works | Saint Louis | MO | — | ◇ UNVERIFIED |
| PMPCK Manufacturing, LLC | Louisville | KY | — | ◇ UNVERIFIED |
| PLPdf LLC | Gilbert | AZ | — | ◇ UNVERIFIED |
| PDP D Q Machine, INC. | Machesney Park | IL | — | ◇ UNVERIFIED |
| PTPeachtree Tooling CORP | Braselton | GA | — | ◇ UNVERIFIED |
| PPPeakview Pinewood Tool LLC | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| PMPearlsnap Machine Works, LLC | Madison | WI | — | ◇ UNVERIFIED |
| PMPellco Machine INC | Saint Michael | MN | — | ◇ UNVERIFIED |
| PIPemco INC | Pascagoula | MS | — | ◇ UNVERIFIED |
