| OBOmaha Box CO | Omaha | NE | — | ◇ UNVERIFIED |
| OSOmaha Sign Group, Inc. | Omaha | NE | — | ◇ UNVERIFIED |
 Omnicell, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| ODOmni Display LLC | Brooksville | FL | — | ◇ UNVERIFIED |
| ODOn Display Signs, Inc. | Louisville | KY | — | ◇ UNVERIFIED |
| ODOne Day Signs of Oregon INC | Bend | OR | — | ◇ UNVERIFIED |
| OTOn Taps LTD. | Chicago | IL | — | ◇ UNVERIFIED |
| ONOntario Neon CO INC | Ontario | CA | — | ◇ UNVERIFIED |
| OTOn Time Signs | Fort Worth | TX | — | ◇ UNVERIFIED |
| OTOn Time Signs CORP. | Corona | NY | — | ◇ UNVERIFIED |
| OWOn Wings, INC. | Englewood | CO | — | ◇ UNVERIFIED |
| OBOptimum Bindery Services of New England, INC. | Nashua | NH | — | ◇ UNVERIFIED |
| OBOrange Boxer Operations LLC Kap Stone Paper and Packaging Ontario Box | Ontario | CA | — | ◇ UNVERIFIED |
| OBOrange Box Productions Dba Fastsigns of Torrance | Torrance | CA | — | ◇ UNVERIFIED |
| OCOrange CO Name Plate CO INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| OCOrange County Container | City of Industry | CA | — | ◇ UNVERIFIED |
| OCOrange County Container Group | City of Industry | CA | — | ◇ UNVERIFIED |
| OCOrange County Container, Group LLC | City of Industry | CA | — | ◇ UNVERIFIED |
| OSOrde Sign and Graphics, INC | De Pere | WI | — | ◇ UNVERIFIED |
| OCOregon City Signs INC | Oregon City | OR | — | ◇ UNVERIFIED |
| OIOrientations INC Dba Designer Sign Systems | Minneapolis | MN | — | ◇ UNVERIFIED |
| OPOrora Packaging Solutions | Newark | CA | — | ◇ UNVERIFIED |
| OLOTS Legacy Signs Inc | Fort Worth | TX | — | ◇ UNVERIFIED |
| OGOutform Group | Union City | CA | — | ◇ UNVERIFIED |
| OMOutfront Media INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| OMOutfront Media LLC | Stuart | FL | — | ◇ UNVERIFIED |
| OIOvierre Industries LLC | Salida | CO | — | ◇ UNVERIFIED |
| OVO & V Printing INC | Alamosa | CO | — | ◇ UNVERIFIED |
| OPOzone Press LLC | Ozone Park | NY | — | ◇ UNVERIFIED |
| PPPacific Packaging & Design, LLC | Selma | CA | — | ◇ UNVERIFIED |
| PPPacific Paper Box CO | Cudahy | CA | — | ◇ UNVERIFIED |
| PPPacific Paper Tube INC | Stockton | CA | — | ◇ UNVERIFIED |
| PPPacific Paper Tube, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| PSPacific Sign Center Corp. | Dana Point | CA | — | ◇ UNVERIFIED |
| PSPacific Southwest Container | Modesto | CA | — | ◇ UNVERIFIED |
| PSPacific Southwest Container LLC | Visalia | CA | — | ◇ UNVERIFIED |
| PSPacific Southwest Container LLC Delaware Limited Liability Company | Modesto | CA | — | ◇ UNVERIFIED |
| PCPackage Crafters Incorporated | High Point | NC | — | ◇ UNVERIFIED |
| POPackage One, INC | Madera | CA | — | ◇ UNVERIFIED |
| PIPackageone INC Dba American River - Packageone | Madera | CA | — | ◇ UNVERIFIED |
| PCPackaging CORP of America | Bedford Park | IL | — | ◇ UNVERIFIED |
| PCPackaging CORP of America | Eaton Park | FL | — | ◇ UNVERIFIED |
| PCPackaging CORP of America Chelmsford Sheet Plant | Chelmsford | MA | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Kingsburg | CA | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | San Lorenzo | CA | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Opelika | AL | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Madison | AL | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Vincennes | IN | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Allentown | PA | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Tomahawk | WI | — | ◇ UNVERIFIED |
