| CWCoordinated Wire Rope of Ventura INC | Ventura | CA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| CWCoppa Woodworking INC | San Pedro | CA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| CICopp Industrial Manufacturing | Pomona | CA | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| CICoral Industries INC | Santa Fe Springs | CA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| CVCordeiro Vault CO INC | Elk Grove | CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CICorenco INC | Santa Rosa | CA | Machinery Manufacturing333294 | 1-19 | ◇ UNVERIFIED |
| CMCoronet Mfg CO INC | Gardena | CA | Electrical Equipment, Appliance & Component Manufacturing335121 | — | ◇ UNVERIFIED |
| CTCorrectional Training Facility Soledad | Soledad | CA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| CMCorsair Marine INC | Chula Vista | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CFCorsican Furniture, INC | Vernon | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| CBCorson Built INC | Jurupa Valley | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| CICosmetic Industries INC | Fontana | CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CSCosmetic Specialties International, LLC | Oxnard | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CPCosmic Plastics INC | Valencia | CA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| CCCosway CO | Gardena | CA | Chemical Manufacturing325613 | — | ◇ UNVERIFIED |
| CCCosway Company INC | Long Beach | CA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| CBCottage Bakery, INC. | Lodi | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CICovert Iron Works | Cudahy | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CCowelco | Long Beach | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CDCpi-econo Division Dba Econo Broadcast Service | Woodland | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CPCps Printing | Carlsbad | CA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| CICrafco INC | Fontana | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CTCreation Technologies San Jose | Milpitas | CA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| CPCreel Printing Company of California,inc | Costa Mesa | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CGCrestone Group LLC | Carlsbad | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CRCrimson Renewable Energy, LP | Bakersfield | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| CCCriterion Catalysts & Technologies LP | Azusa | CA | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| CCCriterion Composites INC. | Garden Grove | CA | Transportation Equipment Manufacturing336991 | 1-19 | ◇ UNVERIFIED |
| CRC R Laurence CO INC | Gardena | CA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| CLCr Laurence CO INC | Vernon | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| CPCrop Production Services | Oxnard | CA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| CPCrop Production Services - Huron | Huron | CA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CPCrop Production Services INC | Cutler | CA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CBCrown Beverage Packaging INC | Van Nuys | CA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CCCrown City Plating CO | El Monte | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CCCrown Cork & Seal Company | Fremont | CA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CMCrown Manufacturing | Newark | CA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| CPCrown Printers | San Bernardino | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CRC & R Sales Inc/dba Kretzschmar Steel | Colton | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CCCruz Containers INC | Bloomington | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CGCrystal Geyser Roxane | Olancha | CA | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
| CCCs Circuits INC | Simi Valley | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| CDCubic Defense Applications INC | San Diego | CA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| CACustom Acrylic Products & Displays LLC Dba T&s Die Cutting | Santa Fe Springs | CA | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| CACustom Alloy Sales INC | Lynwood | CA | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| CFCustom Fiberglass/dba Snugtop | Long Beach | CA | Transportation Equipment Manufacturing336214 | — | ◇ UNVERIFIED |
| CMCustom Made Packaging | Sacramento | CA | Paper Manufacturing322221 | — | ◇ UNVERIFIED |
| CTCustom Tube & Manufacturing | Paso Robles | CA | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| CLCutter Lumber Products | Stockton | CA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| CSCycle Shack INC | South San Francisco | CA | Transportation Equipment Manufacturing336991 | — | ◇ UNVERIFIED |
