| OAO'mara Ag Services INC | Des Moines | IA | — | ◇ UNVERIFIED |
| ODOmega Demolition CORP | Rosemont | IL | — | ◇ UNVERIFIED |
| OMOmni Metals CO INC | Somersworth | NH | — | ◇ UNVERIFIED |
| OLOpen Loop Energy - Nichols Facility | Safford | AZ | — | ◇ UNVERIFIED |
| OROquawka River Terminal | Gladstone | IL | — | ◇ UNVERIFIED |
| OOOrchid Orthopedics Solutions | Santa Ana | CA | — | ◇ UNVERIFIED |
| OIOrion Industries Auburn | Auburn | WA | — | ◇ UNVERIFIED |
| OSOsf St James Hospital | Pontiac | IL | — | ◇ UNVERIFIED |
| OEOster Enterprises INC | Lemont | IL | — | ◇ UNVERIFIED |
| OSOtten Screw Products Co-otten Screw Products CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OMOverly Manufacturing Company | Greensburg | PA | — | ◇ UNVERIFIED |
| OMOwen Manufacturing INC | Owen | WI | — | ◇ UNVERIFIED |
| OWO W Hubbell & Sons | New York Mills | NY | — | ◇ UNVERIFIED |
| OCOxy-dry CORP | Arlington Heights | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Chicago | IL | — | ◇ UNVERIFIED |
| PAPacific Award Metals INC | Baldwin Park | 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 |
| 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 |
| 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 |
| 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 |
| PCPeabody Coal CO | Marissa | IL | — | ◇ UNVERIFIED |
| PVPeace Village | Palos Park | IL | — | ◇ UNVERIFIED |
| PTPeacock Tool & Engineering | Spring Valley | CA | — | ◇ UNVERIFIED |
| PPPeko Precision Products Sheet Metal Division | Rochester | NY | — | ◇ UNVERIFIED |
| PEPella Entry Systems | Fairfield | OH | — | ◇ 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 |
| PSPenny Swain | Urbana | IL | — | ◇ 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 |
| 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 |
| PMPetersen Metals | Hudson | FL | — | ◇ UNVERIFIED |
| PAPettit Auto and Truck Sales | Rockford | IL | — | ◇ UNVERIFIED |
| PPPhilips Prods INC | Charlotte | MI | — | ◇ UNVERIFIED |
 Phillips Medisize St. Croix Meadows | Hudson | WI | — | ◇ UNVERIFIED |
| PGPhilos Global Technologies INC | Buffalo Grove | IL | — | ◇ UNVERIFIED |
| PWPhoenix West Stable Products | Irwindale | CA | — | ◇ UNVERIFIED |
| PWPicture Woods LTD | Boulder | CO | — | ◇ UNVERIFIED |
| PTPike Tool & Grinding Incorporated | Colorado Springs | CO | — | ◇ UNVERIFIED |
| PFPinnacle Frames & Accents | Piggott | AR | — | ◇ UNVERIFIED |
| PFPinnacle Frames & Accents-pocahontas | Pocahontas | AR | — | ◇ UNVERIFIED |
| PHPioneer Hi Bred International Incorporated | Johnston | IA | — | ◇ UNVERIFIED |
| PIPioneer Industries | Hackensack | NJ | — | ◇ UNVERIFIED |
| PIPioneer Industries Div | Carlstadt | NJ | — | ◇ UNVERIFIED |
| PPPioneer Powder | Franklin Park | IL | — | ◇ UNVERIFIED |
| PCPiper Corvette Specialties | Vermilion | IL | — | ◇ UNVERIFIED |
| PMPittsburg & Midway Pittsburg and Midway | Raton | NM | — | ◇ UNVERIFIED |
| POPitts Oilfield | San Angelo | TX | — | ◇ UNVERIFIED |
| PTP-k Tool & Manufacturing Company | Santa Teresa | NM | — | ◇ UNVERIFIED |
| PSPlainfield Stamping-illinois | Plainfield | IL | — | ◇ UNVERIFIED |
| PCPlant City Steel CO | Plant City | FL | — | ◇ UNVERIFIED |
| PEPlant Engineering and Maintenance - Oxford Machine and Fabrication | Oxford | AL | — | ◇ UNVERIFIED |
| PMPlant Maintenance Service CORP F-shop | Millington | TN | — | ◇ UNVERIFIED |
| PPPlastic Power Extrusions CORP | Schiller Park | IL | — | ◇ UNVERIFIED |
| PIPlastiline INC | Powell | TN | — | ◇ UNVERIFIED |
| PTPlaya Tool & Marine INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| PLPleatco, LLC. | Louisville | KY | — | ◇ UNVERIFIED |
| P1Plt 18 | Oklahoma City | OK | — | ◇ UNVERIFIED |
| PAPlumbing and Mechanical Contractors | Milwaukie | OR | — | ◇ UNVERIFIED |
| PMPneumafil Metals Corporation | Charlotte | NC | — | ◇ UNVERIFIED |
| PPPonam Precision Gages | Glendale | CA | — | ◇ UNVERIFIED |
| PCPort City Metal Services INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| PLPort Logistics | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
| PMPort Manatee Fl Lng Manufacturing Facility | Palmetto | FL | — | ◇ UNVERIFIED |
| PPPositive Prototype Industries | Fraser | MI | — | ◇ UNVERIFIED |
| PCPowder Coat V INC | Astoria | IL | — | ◇ UNVERIFIED |
| PHPower Holdings of Illinois | Ashley | IL | — | ◇ UNVERIFIED |
| PRPower Recycling INC | Collinsville | IL | — | ◇ UNVERIFIED |
| POPowerscreen of Chicago | Harvey | IL | — | ◇ UNVERIFIED |
| PFPrairieland Fs INC | Jacksonville | IL | — | ◇ UNVERIFIED |
