| AMActive Membranes | Fillmore, CA | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| AAAdire Audio LLC | Thousand Oaks, CA | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| ALAdvenchen Laboratories LLC | Moorpark, CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| AIAerocomputers, INC. | Oxnard, CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| ACAfton Chemical Corporation Dba Costco | Simi Valley, CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| AAAgency Arms LLC | Ventura, CA | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| AMAg Millworks | Ventura, CA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| ACAir Cooling Technology | Camarillo, CA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| ATAirfast Technologies INC | Camarillo, CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| APAirlite Plastics CO Dba Canopy Beauty Packaging | Oxnard, CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| AMAka Machining INC. | Simi Valley, CA | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| ATAkkt Tool | Camarillo, CA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| AVAlexander Vin | Thousand Oaks, CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| ALAlfaifs LLC | Oxnard, CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ALAlfaifs LLC | Oxnard, CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ALAllison Lie | Thousand Oaks, CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| APAlloy Process Equipment, INC. | Ventura, CA | Transportation Equipment Manufacturing336992 | — | ◇ UNVERIFIED |
| AIAlphagraphics in the Village Plaza | Thousand Oaks, CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAlsana Treatmente Center | Thousand Oaks, CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
 Aluminum Precision Products, INC | Oxnard, CA | Fabricated Metal Product Manufacturing332112 | — | ◇ UNVERIFIED |
| AAAlvaro Adrian De La Cruz Evangelista, an Individual | Oxnard, CA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| AMAmb Machine Shop INC | Oxnard, CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ALAmerican Lamp Company Incorporated | Thousand Oaks, CA | Electrical Equipment, Appliance & Component Manufacturing335131 | — | ◇ UNVERIFIED |
| AMAmerican Machine & Conveyor CORP | Oxnard, CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| APAmeron Pole Products Division | Fillmore, CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| AIAmgen INC. | Thousand Oaks, CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| AFAngry Ferret Brewing Company LLC | Simi Valley, CA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| ACAqua Creations | Ventura, CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| ACAquapulse Chemicals, LLC | Ventura, CA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| AAquatronics | Oxnard, CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AAArmacel Armor CORP | Camarillo, CA | Textile Mills313320 | — | ◇ UNVERIFIED |
| ARAssoc. Ready Mix Concrete | Oxnard, CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| AAAstro Aerospace | Oxnard, CA | Transportation Equipment Manufacturing336419 | — | ◇ UNVERIFIED |
| ABAtara Biotherapeutics INC | Newbury Park, CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ABAtara Biotherapeutics INC | Newbury Park, CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| ACAurora Casting & Engineering INC | Santa Paula, CA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| AAAutomated Applications | Moorpark, CA | Machinery Manufacturing333518 | — | ◇ UNVERIFIED |
| AMAutomated Manufacturing INC | Simi Valley, CA | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| ARAutomotive Racing Productna INC | Santa Paula, CA | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| ALAuvang LLC | Newbury Park, CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| AMAvita Medical Americans LLC | Ventura, CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| AOAvoPacific Oils, LLC | Oxnard, CA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| AAAxco Adhesive Systems CO INC | Oxnard, CA | Machinery Manufacturing333993 | — | ◇ UNVERIFIED |
| AEAxtell Expressions, Inc. | Ventura, CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BBBasic Business Forms INC. | Oxnard, CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BSBattery Streak INC | Newbury Park, CA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| BSBattery Streak INC | Camarillo, CA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| BBaxalta | Thousand Oaks, CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BDBay Development | Port Hueneme, CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| BBB & B Surplus | Somis, CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
