| PRPa Rail Car Co/west Middlesex Plt | West Middlesex | PA | — | ◇ UNVERIFIED |
| PGParamount Grinding Svc | Paramount | CA | — | ◇ UNVERIFIED |
| PMParamount Manufacturing CO 445 | Long Beach | CA | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro, City of | MA | — | ◇ UNVERIFIED |
| PHParker Hannifin - Airtek | Lancaster | NY | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Deerwood | MN | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Lithia Springs | GA | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Forest City | NC | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Reading | PA | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Hpd | Marysville | OH | — | ◇ UNVERIFIED |
| PHParker Hannifin Integrated Hydraulics Division | Lincolnshire | IL | — | ◇ UNVERIFIED |
| PHParker Hannifin /mobile Systems | Elk Grove Village | IL | — | ◇ UNVERIFIED |
 Parker Industries INC | Connelly Springs | NC | — | ◇ UNVERIFIED |
| PParker-kalon | Campbellsville | KY | — | ◇ UNVERIFIED |
| PNPark Nameplate CO INC | Flushing | NY | — | ◇ UNVERIFIED |
| PFParts Finishing Group | Vassar | MI | — | ◇ UNVERIFIED |
| PCParylene Coating Services | Katy | TX | — | ◇ UNVERIFIED |
| PFPasadena Fabrication Facility | Pasadena | TX | — | ◇ UNVERIFIED |
| PSPascagoula Sheet Metal Works INC | Pascagoula | MS | — | ◇ UNVERIFIED |
| PAPascor Atlantic Corporation | Bland | VA | — | ◇ UNVERIFIED |
| PEPassaic Engraving CO INC | Passaic | NJ | — | ◇ UNVERIFIED |
| PTPas Technologies INC | North Kansas City | MO | — | ◇ UNVERIFIED |
| PPPatchogue Plating Works INC | Patchogue | NY | — | ◇ UNVERIFIED |
| PJPaterson James M | Totowa | NJ | — | ◇ UNVERIFIED |
| PSPathfinder Systems INC | Kansas City | MO | — | ◇ UNVERIFIED |
| PEPatrick Enterprises Corporation | Pembroke | VA | — | ◇ UNVERIFIED |
| PIPatrick Industries INC | Bristol | IN | — | ◇ UNVERIFIED |
| PBPaul B Zimmerman INC | Lititz | PA | — | ◇ UNVERIFIED |
| PCPauls Chrome Plating | Evans City | PA | — | ◇ UNVERIFIED |
| PCPauls Chrome Plating/mars | Evans City | PA | — | ◇ UNVERIFIED |
| PEPayne Engineering & Fabrications | Canton | MA | — | ◇ UNVERIFIED |
| PMPca Metal Finishing Incorporated | Fullerton | CA | — | ◇ UNVERIFIED |
| PCPcc Composites | Frederick | CO | — | ◇ UNVERIFIED |
| PCPcc Composites.cn | Longmont | CO | — | ◇ UNVERIFIED |
| PSPcc Structurals Titanium Treatment Facility | West Haven | UT | — | ◇ UNVERIFIED |
| PPPcm Products INC | Titusville | FL | — | ◇ UNVERIFIED |
| PCP C Plating | Fenton | MO | — | ◇ UNVERIFIED |
| PQP&c Quality Turned Components | Smithfield | RI | — | ◇ UNVERIFIED |
| PLPdp LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| PTPeacock Tool & Engineering | Spring Valley | CA | — | ◇ UNVERIFIED |
| PFPeak Finishing | Provo | UT | — | ◇ UNVERIFIED |
| PPPeak Plating.cn | Colorado Springs | CO | — | ◇ UNVERIFIED |
| PEPeavey Electronics Corporation, Plant Number 5 | Meridian | MS | — | ◇ UNVERIFIED |
| PMPeck Manufacturing CO | Herman | NE | — | ◇ UNVERIFIED |
| PCPeddinghaus CORP of Sc | Andrews | SC | — | ◇ UNVERIFIED |
| PEPeerless Energy Systems | Omaha | NE | — | ◇ UNVERIFIED |
| PTPeerless Tube CO INC | Bloomfield | NJ | — | ◇ UNVERIFIED |
| PPPeko Precision Products Sheet Metal Division | Rochester | NY | — | ◇ 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 |
 Penco Products INC | Hamilton | NC | — | ◇ UNVERIFIED |
| PPPenn Panel & Box CO | Collingdale | PA | — | ◇ UNVERIFIED |
| PDPennsylvania Drilling Company | Woodstock | VA | — | ◇ UNVERIFIED |
| PMPennsylvania Metallurgical INC | Bethlehem | PA | — | ◇ UNVERIFIED |
| PUPenn United Tech INC | Cabot | PA | — | ◇ UNVERIFIED |
| PEPentair Electronic Packaging | Warwick | RI | — | ◇ UNVERIFIED |
| PTPentair Technical Solutions | Mount Sterling | KY | — | ◇ UNVERIFIED |
| PTPeoria Tube Forming CORP | East Peoria | IL | — | ◇ UNVERIFIED |
| PEPerez Engineering INC | Gardena | CA | — | ◇ UNVERIFIED |
| PAPerfect Air Control LLC / Metal Industries LLC of Nc | Marion | NC | — | ◇ UNVERIFIED |
| PIPerfection Industrial Finishing | Tucson | AZ | — | ◇ UNVERIFIED |
| PIPerfection Industries INC | Detroit | MI | — | ◇ UNVERIFIED |
| PIPerfection Industries INC | Terrell | TX | — | ◇ UNVERIFIED |
| PPPerfection Plating, INC. (closed) | Nashville | TN | — | ◇ UNVERIFIED |
| PPPerfect Patterns South | Columbus | GA | — | ◇ UNVERIFIED |
| PFPerformance Food Group | Kendallville | IN | — | ◇ UNVERIFIED |
| PPPerformance Plating & Polishing LLC | Olathe | KS | — | ◇ UNVERIFIED |
| PSPerformance Structures, INC. | Oakland | CA | — | ◇ UNVERIFIED |
| PCPerkin-elmer CORP Applied Sci | Pomona | CA | — | ◇ UNVERIFIED |
| PMPerkins Machine CO | Warren | MA | — | ◇ UNVERIFIED |
| PNPermasteelisa North America | Harrison | NJ | — | ◇ UNVERIFIED |
| PTPermian Tank and Manufacturing INC / El Reno Manufacturing Plant | El Reno | OK | — | ◇ UNVERIFIED |
| PFPetersen Finishing CORP | Schiller Park | IL | — | ◇ UNVERIFIED |
| PIPetersen INC | Pocatello | ID | — | ◇ UNVERIFIED |
| PIPetersen Industries, INC. | Lake Wales | FL | — | ◇ UNVERIFIED |
| PMPetersen Metals | Hudson | FL | — | ◇ UNVERIFIED |
| PHPeters Heat Treating | Meadville | PA | — | ◇ UNVERIFIED |
| PNPeterson & Nash Incorporated | Hanover | MA | — | ◇ UNVERIFIED |
| PCPetes Custom Metal Finishing | Phoenix | AZ | — | ◇ UNVERIFIED |
| PCPetrin CORP | Addis | LA | — | ◇ UNVERIFIED |
| PIPetroferm Incorporated | Franklin | KY | — | ◇ UNVERIFIED |
| PPPfi Precision New Carlisle Ohio | New Carlisle | OH | — | ◇ UNVERIFIED |
| PIPgi International | Houston | TX | — | ◇ UNVERIFIED |
| PEPhilips Electronics | New Providence Boro | NJ | — | ◇ UNVERIFIED |
| PAPhillips Aerospace | City of Industry | CA | — | ◇ UNVERIFIED |
| PIPhilson, INC. | Watertown | CT | — | ◇ UNVERIFIED |
| PMP&h Manufacturing | Shelbyville | IL | — | ◇ UNVERIFIED |
| PPPhoenix Products INC | Berea | KY | — | ◇ UNVERIFIED |
| PHP & H Plating CO INC | Chicago | IL | — | ◇ UNVERIFIED |
| PIPhylrich International | Los Angeles | CA | — | ◇ UNVERIFIED |
| PAPiedmont Aviation Component Services | Winston Salem | NC | — | ◇ UNVERIFIED |
| PFPier Foundry | Saint Paul | MN | — | ◇ UNVERIFIED |
| PIPier-sol, INC. | Baltimore | MD | — | ◇ UNVERIFIED |
| PTPike Tool & Grinding Incorporated | Colorado Springs | CO | — | ◇ UNVERIFIED |
 Pilgrim Screw Corporation | Providence | RI | — | ◇ UNVERIFIED |
| PMPiolax Manufacturing Plant Expansion | Canton | GA | — | ◇ UNVERIFIED |
| PIPioneer Industries Seattle | Seattle | WA | — | ◇ UNVERIFIED |
| PMPioneer Metal Finishing | Minneapolis | MN | — | ◇ UNVERIFIED |
