| ODOmega Demolition CORP | Rosemont | IL | — | ◇ UNVERIFIED |
| OEOmega Engineering INC | Bridgeport | NJ | — | ◇ UNVERIFIED |
| ONOmega Natchiq New Iberia Facility | New Iberia | LA | — | ◇ UNVERIFIED |
| OMOmni Metals CO INC | Somersworth | NH | — | ◇ UNVERIFIED |
| OSOne Source Systems LLC | Vicksburg | MS | — | ◇ UNVERIFIED |
| OLOpen Loop Energy - Nichols Facility | Safford | AZ | — | ◇ UNVERIFIED |
| OROquawka River Terminal | Gladstone | IL | — | ◇ UNVERIFIED |
| OSOrange State Steel Construction, INC | Pinellas Park | FL | — | ◇ UNVERIFIED |
| OMOrchard Machinery Corporation | Yuba City | CA | — | ◇ UNVERIFIED |
| OOOrchid Orthopedics | Arcadia | CA | — | ◇ UNVERIFIED |
| OOOrchid Orthopedics Solutions | Santa Ana | CA | — | ◇ UNVERIFIED |
| OIOregon Iron Works Hidden Way | Vancouver | WA | — | ◇ UNVERIFIED |
| OIOregon Iron Works INC 3001 | Vancouver | WA | — | ◇ UNVERIFIED |
| OIOrion Industries Auburn | Auburn | WA | — | ◇ UNVERIFIED |
| OMOrion Marine Construction, INC | Tampa | FL | — | ◇ UNVERIFIED |
| OMOrnamental Metalworks INC | Decatur | IL | — | ◇ UNVERIFIED |
| OSOsf St James Hospital | Pontiac | IL | — | ◇ UNVERIFIED |
| OEOster Enterprises INC | Lemont | IL | — | ◇ UNVERIFIED |
| OTOtis Technology INC | Lyons Falls | NY | — | ◇ UNVERIFIED |
| OSOtten Screw Products Co-otten Screw Products CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OSOutland Steel, INC. | Caldwell | ID | — | ◇ UNVERIFIED |
| OMOwen Manufacturing INC | Owen | WI | — | ◇ UNVERIFIED |
| OWO W Hubbell & Sons | New York Mills | NY | — | ◇ UNVERIFIED |
| OIOxbo International CORP | Lynden | WA | — | ◇ UNVERIFIED |
| OCOxy-dry CORP | Arlington Heights | IL | — | ◇ UNVERIFIED |
| OSOzark Steel Fabricators INC | Farmington | MO | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Chicago | IL | — | ◇ UNVERIFIED |
| PSPabrico Steel Fabricators | Paterson | NJ | — | ◇ UNVERIFIED |
| PIPacal Industries LLC | La Crosse | WI | — | ◇ UNVERIFIED |
| PAPacific Award Metals INC | Baldwin Park | CA | — | ◇ UNVERIFIED |
| PMPacific Metal Stampings INC | Valencia | CA | — | ◇ UNVERIFIED |
| PMPadnos Manufacturing INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| PMPalfinger Marine USA INC | Portsmouth | VA | — | ◇ UNVERIFIED |
| PAPall Aeropower CORP Fort Myers | Fort Myers | FL | — | ◇ UNVERIFIED |
| PMPalmer Mfg. & Tank, INC. | Dickinson | ND | — | ◇ UNVERIFIED |
| PWPampa Wind Tower Manufacturing Facility | Pampa | TX | — | ◇ UNVERIFIED |
| PPanatrol | Bedford Park | IL | — | ◇ UNVERIFIED |
| PPPaper People, LLC | Vancouver | WA | — | ◇ UNVERIFIED |
| PMParagon Machine Company, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| PMParagon Metal Fabrication | Cincinnati | OH | — | ◇ UNVERIFIED |
| PMParamount Manufacturing CO 445 | Long Beach | CA | — | ◇ UNVERIFIED |
| PAParc Auto Industries INC | Hauppauge | NY | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Deerwood | MN | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Hpd | Marysville | OH | — | ◇ UNVERIFIED |
| PHParker Hannifin Corporation, Racor Division | Holly Springs | MS | — | ◇ UNVERIFIED |
| PMParkview Metal Products INC | Lake Zurich | IL | — | ◇ UNVERIFIED |
| PPParton & Preble INC | Warren | MI | — | ◇ UNVERIFIED |
| PCParts Cleaning Technologies LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| PLParty Lite Mfg | Batavia | IL | — | ◇ UNVERIFIED |
| PFPasadena Fabrication Facility | Pasadena | TX | — | ◇ UNVERIFIED |
| PSPascagoula Sheet Metal Works INC | Pascagoula | MS | — | ◇ UNVERIFIED |
| PSPathfinder Systems INC | Kansas City | MO | — | ◇ UNVERIFIED |
| PVPatina V, a Div of Norlaine, INC | Hacienda Heights | CA | — | ◇ UNVERIFIED |
| PMPaule Metal Recycling | Alorton | IL | — | ◇ UNVERIFIED |
| PMPaul Michels, Jr. | Saint Joseph | IL | — | ◇ UNVERIFIED |
| PSPaul Shields | Rantoul | IL | — | ◇ UNVERIFIED |
| PEPayne Engineering & Fabrications | Canton | MA | — | ◇ UNVERIFIED |
| PHPb & H Moulding | Syracuse | NY | — | ◇ UNVERIFIED |
| PMPcc/ Mold Masters | Eastlake | OH | — | ◇ UNVERIFIED |
| PPPci Pharmaceutical Services | Rockford | IL | — | ◇ UNVERIFIED |
| PQP&c Quality Turned Components | Smithfield | RI | — | ◇ UNVERIFIED |
| PPPdm Precast | Carlisle | IA | — | ◇ UNVERIFIED |
| PCPeabody Coal CO | Marissa | IL | — | ◇ UNVERIFIED |
| PVPeace Village | Palos Park | IL | — | ◇ UNVERIFIED |
| PTPeacock Tool & Engineering | Spring Valley | CA | — | ◇ UNVERIFIED |
| PMPeck Manufacturing CO | Herman | NE | — | ◇ UNVERIFIED |
| PPPeko Precision Products Sheet Metal Division | Rochester | NY | — | ◇ UNVERIFIED |
| PMPelican Metal Products LLC | Harrison Township | MI | — | ◇ UNVERIFIED |
| PKPelletizer Knives | Houston | TX | — | ◇ UNVERIFIED |
| PIPemco INC | Pascagoula | MS | — | ◇ UNVERIFIED |
| PTPems Tool & Machine INC | Little Falls | NY | — | ◇ UNVERIFIED |
| PMPenasack Machine CO | Albion | NY | — | ◇ UNVERIFIED |
| PDPennsylvania Drilling Company | Woodstock | VA | — | ◇ UNVERIFIED |
| PSPenny Swain | Urbana | IL | — | ◇ UNVERIFIED |
| PPPenz Products, INC. | Mishawaka | IN | — | ◇ UNVERIFIED |
| PJPeoria Journal Star INC | Peoria | IL | — | ◇ UNVERIFIED |
| PAPerfect Air Control LLC / Metal Industries LLC of Nc | Marion | NC | — | ◇ UNVERIFIED |
| PMPerfect Mulch Products INC | Mccook | IL | — | ◇ UNVERIFIED |
| PEPerformance Energy Services LLC - Amelia Yard | Morgan City | LA | — | ◇ UNVERIFIED |
| PPPerformance Products INC | Rockford | IL | — | ◇ UNVERIFIED |
| PSPerformance Structures, INC. | Oakland | CA | — | ◇ UNVERIFIED |
| PPPerky-pet Products CO | Denver | CO | — | ◇ UNVERIFIED |
| PNPermasteelisa North America | Harrison | NJ | — | ◇ UNVERIFIED |
| PEPermian Express Partners LLC | Steeleville | IL | — | ◇ UNVERIFIED |
| PTPermian Tank and Manufacturing INC / El Reno Manufacturing Plant | El Reno | OK | — | ◇ UNVERIFIED |
| PIPetersen Industries, INC. | Lake Wales | FL | — | ◇ UNVERIFIED |
| PMPetersen Metals | Hudson | FL | — | ◇ UNVERIFIED |
| PAPettit Auto and Truck Sales | Rockford | IL | — | ◇ UNVERIFIED |
| PPPfi Precision New Carlisle Ohio | New Carlisle | OH | — | ◇ UNVERIFIED |
| PIPgi International | Houston | TX | — | ◇ UNVERIFIED |
| PMPhilipp Mfg CO INC | Easthampton | MA | — | ◇ UNVERIFIED |
| PEPhilips Electronics | New Providence Boro | NJ | — | ◇ UNVERIFIED |
 Phillips Medisize St. Croix Meadows | Hudson | WI | — | ◇ UNVERIFIED |
| PGPhilos Global Technologies INC | Buffalo Grove | IL | — | ◇ UNVERIFIED |
| PMP&h Manufacturing | Shelbyville | IL | — | ◇ UNVERIFIED |
| PHP & H Mining Equipment | Milwaukee | WI | — | ◇ UNVERIFIED |
| PMPhoenix Manufacturing CO | Memphis | TN | — | ◇ UNVERIFIED |
| PMPhoenix Metalcraft | Phoenix | AZ | — | ◇ UNVERIFIED |
| PWPhoenix West Stable Products | Irwindale | CA | — | ◇ UNVERIFIED |
| PWPicture Woods LTD | Boulder | CO | — | ◇ UNVERIFIED |
