| PPPechiney Plastic Packaging, in | San Leandro | CA | Paper Manufacturing322221 | — | ◇ UNVERIFIED |
| PPPechiney Plastic Packaging INC | City of Commerce | CA | Paper Manufacturing322221 | — | ◇ UNVERIFIED |
| PIPermalite INC | Gardena | CA | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| PCPm Company LLC | Rancho Cucamonga | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| PTPort Townsend Paper CORP. | Pico Rivera | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| PMPratt (robert Mann Packaging) LLC | Salinas | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| PDPrecise Die and Finishing, INC | Chatsworth | CA | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| PBPreferred Boxes, INC. | Ontario | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| PPPreferred Paperbox INC | Ontario | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| PCPrint Copy Xpress | San Mateo | CA | Paper Manufacturing322222 | — | ◇ UNVERIFIED |
| PPProactive Packaging and Display | Ontario | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| PLProgressive Label INC | Commerce | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| QCQuality Container Company | Madera | CA | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| QHQuality House Envelope & Printing Specialties INC | Alhambra | CA | Paper Manufacturing322232 | — | ◇ UNVERIFIED |
| RBRam Board | Valencia | CA | Wood Product Manufacturing321219 | — | ◇ UNVERIFIED |
| RPRdm Print Signs | Roseville | CA | Paper Manufacturing322230 | — | ◇ UNVERIFIED |
| RDRelign Div Zimmer Biomet | Santa Clara | CA | Paper Manufacturing322291 | — | ◇ UNVERIFIED |
Reynolds Consumer Products LLC Red Bluff Plant | Red Bluff | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| RCRhino Container | West Sacramento | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| RTRichmond Technology INC. | Redlands | CA | Paper Manufacturing322223 | — | ◇ UNVERIFIED |
| RERicoh Electronics INC | Santa Ana | CA | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| RFRobert Fierro | Oxnard | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| RGRocklin Gc Yard | Rocklin | CA | Paper Manufacturing322122 | — | ◇ UNVERIFIED |
| RCRocktenn Cp, LLC | Cerritos | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| RPRts Packaging LLC | Stockton | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| RPRts Packaging LLC | Orange | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SCSacramento Container CORP | Mcclellan | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SPSambrailo Packaging | Watsonville | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| SASanta Ana Packaging Inc. | Santa ana | CA | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| SPScope Packaging INC | Orange | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SPSd Paper Box CO | Spring Valley | CA | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| SASdpbc Aquisition LP Dba Pemcor Packaging | Spring Valley | CA | Paper Manufacturing322230 | — | ◇ UNVERIFIED |
| SESeaboard Envelope Co., INC. | Irwindale | CA | Paper Manufacturing322230 | — | ◇ UNVERIFIED |
| SCService Container CO LLC Dba Harbor Packaging | Poway | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SRServicenter Radiator & Auto Air | Auburn | CA | Paper Manufacturing322222 | — | ◇ UNVERIFIED |
| SLShears Litho, Inc./coast Printing INC. | Santa Fe Springs | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| SOShield of Glory, INC. | Irvine | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| STSilicone Technology | Carpinteria | CA | Paper Manufacturing322291 | — | ◇ UNVERIFIED |
| SPSimpson Paper CO | Pomona | CA | Paper Manufacturing322120 | — | ◇ UNVERIFIED |
| SPSKTR Properties, LLC | Oceanside | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| SPSmart Packaging Company | Anaheim | CA | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| SISmithcorp, Inc | San Diego | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| SKSmurfit Kappa North America LLC | City of Industry | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SKSmurfit Kappa Orange County LLC | Industry | CA | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| SCSmurfit-stone Container Corpor | Milpitas | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SCSmurfit-stone Container Enterprises | Santa Fe Springs | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| S5Socal 57 Drums LLC | Los Angeles | CA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| SLSolenis LLC | Red Bluff | CA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
Sonoco Products CO | City of Industry | CA | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
Sonoco Products Company | Benicia | CA | Paper Manufacturing322214 | — | ◇ UNVERIFIED |