| OBOerlikon Balzers Coating USA INC | East Tawas | MI | — | ◇ UNVERIFIED |
| OBOerlikon Balzers Coating Usa, INC | Pell City | AL | — | ◇ UNVERIFIED |
| OBOerlikon Balzers USA INC | Rock Hill | SC | — | ◇ UNVERIFIED |
 Oerlikon Metco (us) INC. | Barboursville | WV | — | ◇ UNVERIFIED |
| OCOgden Chrome Plating & Bumper Exchange | Ogden | UT | — | ◇ UNVERIFIED |
| OOhmstede | La Porte | TX | — | ◇ UNVERIFIED |
 Oil City Iron Works INC | Corsicana | TX | — | ◇ UNVERIFIED |
| OIOilfield-electric-marine INC | Houston | TX | — | ◇ UNVERIFIED |
| OCOld Country Millwork INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| OVOlive View Medical Center La County | Sylmar | CA | — | ◇ UNVERIFIED |
| OEOlson Engineering | Saint James | MN | — | ◇ UNVERIFIED |
| OSOlympic Steel | Schaumburg | IL | — | ◇ UNVERIFIED |
| OAOmaha Antique & Job Plating CO | Omaha | NE | — | ◇ UNVERIFIED |
| OCOmco Cast Metals, INC. | Winchester | IN | — | ◇ UNVERIFIED |
| OMOmni Metals CO INC | Somersworth | NH | — | ◇ UNVERIFIED |
| OSO'neal Steel INC | Houston | TX | — | ◇ UNVERIFIED |
| OSO'neal Steel, INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| OSO'neal Steel INC I | Greensboro | NC | — | ◇ UNVERIFIED |
| OMOne More Part Dba Omp | Longmont | CO | — | ◇ UNVERIFIED |
| OLOpen Loop Energy Dba Sjs Machine Shop | Farmington | NM | — | ◇ UNVERIFIED |
| OLOpen Loop Energy - Nichols Facility | Safford | AZ | — | ◇ UNVERIFIED |
| OCOptical Components | Covina | CA | — | ◇ UNVERIFIED |
| OSOptimas Solutions | Wood Dale | IL | — | ◇ UNVERIFIED |
| OCOrange County Metal Processing | Fullerton | CA | — | ◇ UNVERIFIED |
| OCOrbel CORP | Phillipsburg | NJ | — | ◇ UNVERIFIED |
| OOOrchid Orthopedics Solutions | Santa Ana | CA | — | ◇ UNVERIFIED |
| OPOregon Plating Co., INC. | Portland | OR | — | ◇ UNVERIFIED |
| OIOrion Industries Auburn | Auburn | WA | — | ◇ UNVERIFIED |
| OIOrion Industries & Related Entities | Chicago | IL | — | ◇ UNVERIFIED |
| OOrizon | Fenton | MO | — | ◇ UNVERIFIED |
| OPOshkosh Plating Technologies INC | Oshkosh | WI | — | ◇ UNVERIFIED |
| OTOtis Technology INC | Lyons Falls | NY | — | ◇ UNVERIFIED |
| OSOtten Screw Products Co-otten Screw Products CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OSOutokumpu Stainless Bar INC | Richburg | SC | — | ◇ UNVERIFIED |
| OSOverhaul Support Services LLC a Delaware CORP | East Granby | CT | — | ◇ UNVERIFIED |
| OGOwens-brockway Glass Containers INC | Godfrey | IL | — | ◇ UNVERIFIED |
| OPOwens Plating CO | Rainbow City | AL | — | ◇ UNVERIFIED |
| OWO W Hubbell & Sons | New York Mills | NY | — | ◇ UNVERIFIED |
| OMOxford Manufacturing, LLC | Selma | AL | — | ◇ UNVERIFIED |
| OPOxford Plating CO. INC. | Oxford | AL | — | ◇ UNVERIFIED |
| ODOzark Die Casting | Saint Clair | MO | — | ◇ UNVERIFIED |
| OMOzark Mountain Concepts | Rogersville | MO | — | ◇ UNVERIFIED |
| OWOzark Wire LTD INC | Malden | MO | — | ◇ UNVERIFIED |
| OGO-z Gedney | Brooklyn | NY | — | ◇ UNVERIFIED |
| OGOz Gedney Llc/shoemakersville Plt | Shoemakersville | PA | — | ◇ UNVERIFIED |
| PWPaccar Winch INC / Broken Arrow Winch Hoist Manufacturing | Broken Arrow | OK | — | ◇ UNVERIFIED |
| PAPacific Award Metals INC | Baldwin Park | CA | — | ◇ UNVERIFIED |
| PCPacific Chrome Services | Santa Ana | CA | — | ◇ UNVERIFIED |
| PCPacific Coast Anodizing INC | Fresno | CA | — | ◇ UNVERIFIED |
| PIPacific Industrial Supply Director St | Seattle | WA | — | ◇ UNVERIFIED |
| PMPacific Metal Stampings INC | Valencia | CA | — | ◇ UNVERIFIED |
| PNPacific Northwest Plating | Vancouver | WA | — | ◇ UNVERIFIED |
| POPacific Office Automation | Seattle | WA | — | ◇ UNVERIFIED |
| PSPacific Steel Treating CO Incorporated | N Hollywood | CA | — | ◇ UNVERIFIED |
| POPaddock of California | Rock Hill | SC | — | ◇ UNVERIFIED |
| PMPadnos Manufacturing INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| PIPainting INC | South Hackensack | NJ | — | ◇ UNVERIFIED |
| PIPaint-line INC | Fairfield | IA | — | ◇ UNVERIFIED |
| PMPalfinger Marine USA INC | Portsmouth | VA | — | ◇ UNVERIFIED |
| PAPall Aeropower CORP Fort Myers | Fort Myers | FL | — | ◇ UNVERIFIED |
| PPPalmetto Plating Company | Easley | SC | — | ◇ UNVERIFIED |
| PWPalmyra Water Plant | Palmyra | MO | — | ◇ UNVERIFIED |
| PGPamarco Global Graphics | Walton | KY | — | ◇ UNVERIFIED |
| PUPandrol USA LP | Bridgeport | NJ | — | ◇ UNVERIFIED |
| PGPan Glo | Worcester | MA | — | ◇ UNVERIFIED |
| PPPapago Plating | Phoenix | AZ | — | ◇ UNVERIFIED |
| PPPaper People, LLC | Vancouver | WA | — | ◇ UNVERIFIED |
| PMParadigm Manchester INC | Manchester | CT | — | ◇ UNVERIFIED |
| PPParadigm Precision INC - Tempe | Tempe | AZ | — | ◇ UNVERIFIED |
| PMParagon Machine Company, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| PMParagon Metal Fabrication | Cincinnati | OH | — | ◇ UNVERIFIED |
| PSParagon Services Inc-sheridan Facility | Wichita | KS | — | ◇ UNVERIFIED |
| PIParamelt Icd Warehouse | Muskegon | MI | — | ◇ UNVERIFIED |
| PGParamount Grinding Svc | Paramount | CA | — | ◇ UNVERIFIED |
| PMParamount Metals & Supply CO | Paramount | CA | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro, City of | MA | — | ◇ UNVERIFIED |
| PGParker Gear Pump Division | Youngstown | OH | — | ◇ UNVERIFIED |
| PHParker Hannifin - Airtek | Lancaster | NY | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Lithia Springs | GA | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Deerwood | MN | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Hpd | Marysville | OH | — | ◇ UNVERIFIED |
| PParker-kalon | Campbellsville | KY | — | ◇ UNVERIFIED |
| PFParts Finishing Group | Vassar | MI | — | ◇ UNVERIFIED |
| PIParvenu INC. | Ellenville | NY | — | ◇ 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 |
| PRPathway Richland Division | Pulaski | TN | — | ◇ UNVERIFIED |
| PEPatrick Enterprises Corporation | Pembroke | VA | — | ◇ UNVERIFIED |
| PIPatrick Industries INC | Bristol | IN | — | ◇ UNVERIFIED |
| PIPaughco, INC | Mound House | NV | — | ◇ UNVERIFIED |
| PBPaul B Zimmerman INC | Lititz | PA | — | ◇ UNVERIFIED |
| PCPauls Chrome Plating | Evans City | PA | — | ◇ UNVERIFIED |
| PCPauls Chrome Plating/mars | Evans City | PA | — | ◇ UNVERIFIED |
