| OMOneida Molded Plastics LLC | Oneida | NY | — | ◇ UNVERIFIED |
| OMOne More Part Dba Omp | Longmont | CO | — | ◇ UNVERIFIED |
| OSOne Source Systems LLC | Vicksburg | MS | — | ◇ UNVERIFIED |
| OIOno Industries INC | Ono | PA | — | ◇ UNVERIFIED |
| OBOntegra Brighton | Brighton | MI | — | ◇ UNVERIFIED |
| OOntic | Creedmoor | NC | — | ◇ UNVERIFIED |
| OLOpen Loop Energy Dba Sjs Machine Shop | Farmington | NM | — | ◇ UNVERIFIED |
| OMOpen Molded Plastics, INC. | Wagoner | OK | — | ◇ UNVERIFIED |
| OEOpmobility Exterior Usa, LLC | Duncan | SC | — | ◇ UNVERIFIED |
| OPOppenheimer Precision Prod INC | Horsham | PA | — | ◇ UNVERIFIED |
| OSOps Sales Company | Birmingham | AL | — | ◇ UNVERIFIED |
| OCOpt CO | Gilbert | AZ | — | ◇ UNVERIFIED |
| OCOptical Components | Covina | CA | — | ◇ UNVERIFIED |
| OFOpw Fueling Components, LLC | Hamilton | OH | — | ◇ UNVERIFIED |
| OROquawka River Terminal | Gladstone | IL | — | ◇ UNVERIFIED |
| OCOrange County Metal Processing | Fullerton | CA | — | ◇ UNVERIFIED |
| OCOrange County Plating CO INC | Orange | CA | — | ◇ UNVERIFIED |
| OCOrange County Powdercoating Co.,inc. | Orange | CA | — | ◇ UNVERIFIED |
| OSOrange State Steel Construction, INC | Pinellas Park | FL | — | ◇ UNVERIFIED |
| OCOrbel CORP | Phillipsburg | NJ | — | ◇ UNVERIFIED |
| OCOrbis Corporation | Manchester | IA | — | ◇ UNVERIFIED |
| OOOrchid Orthopedics | Arcadia | CA | — | ◇ UNVERIFIED |
| OAOregon Aero | Salem | OR | — | ◇ UNVERIFIED |
| OIOregon Iron Works Hidden Way | Vancouver | WA | — | ◇ UNVERIFIED |
| OIOregon Iron Works INC 3001 | Vancouver | WA | — | ◇ UNVERIFIED |
| OPOregon Plating Co., INC. | Portland | OR | — | ◇ UNVERIFIED |
| OSOregon State Penitentiary | Salem | OR | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons LLC - Ivanhoe Carbon Black Plant | Franklin | LA | — | ◇ UNVERIFIED |
| OIOrion Industries & Related Entities | Chicago | IL | — | ◇ UNVERIFIED |
| OMOrion Marine Construction, INC | Tampa | FL | — | ◇ UNVERIFIED |
| ODOrlando Drum and Container CORP | Orlando | FL | — | ◇ UNVERIFIED |
| OIOrly International INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| OMOrnamental Metalworks INC | Decatur | IL | — | ◇ UNVERIFIED |
| OOrtech | Kirksville | MO | — | ◇ UNVERIFIED |
| OSOsf St James Hospital | Pontiac | IL | — | ◇ UNVERIFIED |
| OPOshkosh Plating Technologies INC | Oshkosh | WI | — | ◇ UNVERIFIED |
| OSOsram Sylvania Inc, Kentucky Carbide | Madisonville | KY | — | ◇ UNVERIFIED |
| OEOster Enterprises INC | Lemont | IL | — | ◇ UNVERIFIED |
| OOteco | Houston | TX | — | ◇ UNVERIFIED |
| OSOutland Steel, INC. | Caldwell | ID | — | ◇ UNVERIFIED |
| OSOutokumpu Stainless Bar INC | Richburg | SC | — | ◇ UNVERIFIED |
| OMOverly Manufacturing Company | Greensburg | PA | — | ◇ UNVERIFIED |
| OMOwen Manufacturing INC | Owen | WI | — | ◇ UNVERIFIED |
| OCOwens Corning Reinforcement Solutions, LLC | Concord | NC | — | ◇ UNVERIFIED |
| OPOwens Plating CO | Rainbow City | AL | — | ◇ UNVERIFIED |
| OEOxbow Energy Solutions | Texas City | TX | — | ◇ UNVERIFIED |
| OPOxford Plating CO. INC. | Oxford | AL | — | ◇ UNVERIFIED |
| OCOxy-dry CORP | Arlington Heights | IL | — | ◇ UNVERIFIED |
| OIOxylance INC | Birmingham | AL | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Marion | IN | — | ◇ UNVERIFIED |
| OMOzark Materials, Llc, an Ingevity Company | Childress | TX | — | ◇ UNVERIFIED |
| OMOzark Mountain Concepts | Rogersville | MO | — | ◇ UNVERIFIED |
| OSOzark Steel Fabricators INC | Farmington | MO | — | ◇ UNVERIFIED |
| OWOzark Wire LTD INC | Malden | MO | — | ◇ UNVERIFIED |
| OGO-z Gedney | Brooklyn | NY | — | ◇ UNVERIFIED |
| OGOz Gedney Llc/shoemakersville Plt | Shoemakersville | PA | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Chicago | IL | — | ◇ UNVERIFIED |
| PSPabrico Steel Fabricators | Paterson | NJ | — | ◇ UNVERIFIED |
| PIPacal Industries LLC | La Crosse | WI | — | ◇ UNVERIFIED |
| PCPacific Chrome Services | Santa Ana | CA | — | ◇ UNVERIFIED |
| PCPacific Coast Anodizing INC | Fresno | CA | — | ◇ UNVERIFIED |
| PCPacific Coast Chemicals Company | Berkeley | CA | — | ◇ UNVERIFIED |
| PIPacific Industrial Supply Director St | Seattle | WA | — | ◇ UNVERIFIED |
| PLPacific Light Technologies | Portland | OR | — | ◇ UNVERIFIED |
| PNPacific Northwest Plating | Vancouver | WA | — | ◇ UNVERIFIED |
| PSPacific Steel Treating CO Incorporated | N Hollywood | CA | — | ◇ UNVERIFIED |
| PTPacific Truck Centers | Ridgefield | WA | — | ◇ UNVERIFIED |
| PIPackaging Ind Group INC | Barnstable (hyannis) | MA | — | ◇ UNVERIFIED |
| PIPac-tec INC Ray-o-lite Div | Ripley | TN | — | ◇ UNVERIFIED |
| PCPactiv Corporation - La Mirada | La Mirada | CA | — | ◇ UNVERIFIED |
| PLPactiv LLC | Bridgeview | IL | — | ◇ UNVERIFIED |
| PLPactiv LLC | Grant Park | IL | — | ◇ UNVERIFIED |
| PLPactiv LLC - Mooresville | Mooresville | NC | — | ◇ UNVERIFIED |
| PPPactiv Packaging Davisville Recycling Center | Davisville | WV | — | ◇ UNVERIFIED |
| POPact One Llc/ W Norriton Twp | Trooper | PA | — | ◇ UNVERIFIED |
| PAPage Alumnized Steel | Monessen | PA | — | ◇ UNVERIFIED |
| PIPaintco INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| PSPainters Supply and Equipment CO | Jackson | MI | — | ◇ UNVERIFIED |
| PIPainting INC | South Hackensack | NJ | — | ◇ UNVERIFIED |
| PIPaint-line INC | Fairfield | IA | — | ◇ UNVERIFIED |
| PSPaint Steel Structure | Wilmington | CA | — | ◇ UNVERIFIED |
 Pajarito Powder | Albuquerque | NM | — | ◇ UNVERIFIED |
| PBPalm Beach Aircraft Services INC | Lantana | FL | — | ◇ UNVERIFIED |
| PMPalmer Mfg. & Tank, INC. | Dickinson | ND | — | ◇ UNVERIFIED |
| PPPalmetto Plating Company | Easley | SC | — | ◇ UNVERIFIED |
| PWPalmyra Water Plant | Palmyra | MO | — | ◇ UNVERIFIED |
| PWPampa Wind Tower Manufacturing Facility | Pampa | TX | — | ◇ UNVERIFIED |
| PPanatrol | Bedford Park | IL | — | ◇ UNVERIFIED |
| PCPan Chemical CORP | Hawthorne | NJ | — | ◇ UNVERIFIED |
| PCPanduit CORP | Romeoville | IL | — | ◇ UNVERIFIED |
| PGPan Glo | Worcester | MA | — | ◇ UNVERIFIED |
| PPPapago Plating | Phoenix | AZ | — | ◇ UNVERIFIED |
| PVParadigm Valve Services | Deer Park | TX | — | ◇ 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 |
| PPParamount Plastics INC | Lockport | IL | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro | MA | — | ◇ UNVERIFIED |
