| AAArchytas Automation INC | Irvine | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| AIArdess International INC. | Irvine | CA | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| AIArnabal International | Irvine | CA | Plastics and Rubber Products Manufacturing326220 | — | ◇ UNVERIFIED |
| ALArtidental Lab INC | Irvine | CA | Miscellaneous Manufacturing339116 | — | ◇ UNVERIFIED |
| ATAstronics Test Systems | Irvine | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| ACAtlas Copco Compressors- Irvine | Irvine | CA | Textile Mills313310 | — | ◇ UNVERIFIED |
| APAvon Protection Ceradyne | Irvine | CA | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| ABAvrio Biopharmaceuticals, LLC | Irvine | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| AMAxonics Modulation Technologies INC | Irvine | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| BIBard (senorx Inc) | Irvine | CA | Paper Manufacturing322291 | — | ◇ UNVERIFIED |
| BABausch and Lomb Americas INC. | Irvine | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BPBenning Power Electronics INC | Irvine | CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| BCBertea CORP Logistics Div | Irvine | CA | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| BBBeta Bionics | Irvine | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| BCBig Cart Corporation | Irvine | CA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
 Biocare Medical INC | Irvine | CA | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| BBiolase | Irvine | CA | Miscellaneous Manufacturing339114 | — | ◇ UNVERIFIED |
 Bio Rad Laboratories | Irvine | CA | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| BLBiorad Laboratories | Irvine | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BIBioscrip Infusion Services INC | Irvine | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BWBiosense Webster | Irvine | CA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| BIBiosensors International Innovation Center | Irvine | CA | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| BMBotanica Medella LLC | Irvine | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BCBroadcom Corporatioin | Irvine | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| BCBroadcom Corporation | Irvine | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| BCBroadley-james CORP. | Irvine | CA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| BBroadley-James-Corporation | Irvine | CA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| B3Building 35 | Irvine | CA | Machinery Manufacturing333314 | — | ◇ UNVERIFIED |
| CCCalsonic Climate Control Incorporated | Irvine | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| CUCanon USA INC | Irvine | CA | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| CUCanon USA INC | Irvine | CA | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| CGCapital Group Companies, INC. | Irvine | CA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| CICartel Industries LLC | Irvine | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CPCatalina Pacific Concrete CO Irvine Plant | Irvine | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CLCavium LLC | Irvine | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| CICellese INC | Irvine | CA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| CICeradyne INC | Irvine | CA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| CPCereus Product Development, INC. | Irvine | CA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CCChase Cleaners INC | Irvine | CA | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| CECheck Engineering & Stamping | Irvine | CA | Fabricated Metal Product Manufacturing332214 | — | ◇ UNVERIFIED |
| CCChocxo Chocolatier LLC | Irvine | CA | Food Manufacturing311351 | — | ◇ UNVERIFIED |
| CIChromadex INC | Irvine | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CPChromatic Productions INC Dba Chromatic Labels | Irvine | CA | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| CFClassic Foods International CORP | Irvine | CA | Food Manufacturing311911 | — | ◇ UNVERIFIED |
| CIClearflow, INC | Irvine | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CClemensdm | Irvine | CA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| CIClindatrix INC | Irvine | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CVClover Visual Communications | Irvine | CA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| CCColony Club Hoa | Irvine | CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCCommons Coffee LLC | Irvine | CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
