| B7Btc 7755 Arjons | San Diego | CA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| BIBumbleride Inc. | San Diego | CA | Miscellaneous Manufacturing339930 | — | ◇ UNVERIFIED |
| BPBumper Plus Autobody | San Diego | CA | Transportation Equipment Manufacturing336992 | — | ◇ UNVERIFIED |
| BPBurleigh Point Limited Dba Sector 9 | San Diego | CA | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| CCC7 Carbon Inc | San Diego | CA | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| CBCa Botana International INC | San Diego | CA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| CECabrillo Enterprises INC. | San Diego | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CMCafe Moto | San Diego | CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| CFCa Furniture Collections | San Diego | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| CICaire INC. | San Diego | CA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| CLCake Love CO. | San Diego | CA | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| CPCalifia Pharma INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CCCalifornia Cannabis Group | San Diego | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CCCalifornia Commercial Asphalt LLC | San Diego | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CCCalifornia Commercial Asphalt LLC | San Diego | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CFCalifornia Furniture Collection INC. | San Diego | CA | Furniture and Related Product Manufacturing337121 | — | ◇ UNVERIFIED |
| CHCalifornia Hardwoods | San Diego | CA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| CPCalifornia Products | San Diego | CA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| CRCalifornia Regional Intranet | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| CSCalifornia Sugar Refiners LLC | San Diego | CA | Food Manufacturing311314 | — | ◇ UNVERIFIED |
| CCCalmat CO Dba Vulcan Materials CO Otay Asphalt Plant | San Diego | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CCalspan | San Diego | CA | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| CWCal West Management | San Diego | CA | Textile Mills313310 | — | ◇ UNVERIFIED |
| CRCampbell Reprographics | San Diego | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CGCanyon Graphics INC | San Diego | CA | Printing and Related Support Activities323112 | — | ◇ UNVERIFIED |
| CHCanyon Holdings INC Dba Canyon Graphics | San Diego | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CRCanyon Rock | San Diego | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| CPCa Plating | San Diego | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CCCarlos Cuevas Marin | San Diego | CA | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| CVCarmel Valley Automotive, INC. | San Diego | CA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| CCCarpet Club | San Diego | CA | Textile Product Mills314110 | — | ◇ UNVERIFIED |
| CCCarvin CORP | San Diego | CA | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| CCCarvin Corporation Dba Carvin Audio | San Diego | CA | Miscellaneous Manufacturing339992 | — | ◇ UNVERIFIED |
| CICaspian INC | San Diego | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CSCatalent San Diego | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| COCatalina Offshore Products, INC. | San Diego | CA | Food Manufacturing311710 | — | ◇ UNVERIFIED |
| CCCathedral Church of St. Paul | San Diego | CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CTCb Therapeutics | San Diego | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| CACell Applications INC | San Diego | CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
 Central Admixture Pharmacy Services INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CMCentral Marble Supply | San Diego | CA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CHCeramic Heights | San Diego | CA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| CICes INC Staging at Nasni | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| CCCha Ca Nha Trang | San Diego | CA | Food Manufacturing311710 | — | ◇ UNVERIFIED |
| CKCharles Koll Jewellers | San Diego | CA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| CMCharles Maynard Lucey and Norma Lacarra Lucey | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| CCCharter Communications | San Diego | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| CSChemcia Scientific LLC | San Diego | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| CIChemcyte INC | San Diego | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CPChem Pro Laboratory, INC. | San Diego | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
