74 Weld, INC. | El Cajon | CA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| APAcc Precision, INC. | Oxnard | CA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| ACAce Clearwater Enterprises, INC. | Torrance | CA | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| AAAero Arc | Gardena | CA | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
Aero Bending Company | Palmdale | CA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| AIAerometals, INC. | El Dorado Hills | CA | Machinery Manufacturing333512 | 100-499 | ◐ LIKELY ACTIVE |
| APAero Precision Engineering, INC. | Los Angeles | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
Aerospace and Defense Manufacturing INC. | Temecula | CA | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| AFAjinomoto Foods North America INC | San Diego | CA | Food Manufacturing311412 | — | ◐ LIKELY ACTIVE |
| APAlger Precision Machining LLC | Ontario | CA | Fabricated Metal Product Manufacturing332721 | 100-499 | ◐ LIKELY ACTIVE |
| AFAllfast Fastening Sys | City of Industry | CA | Fabricated Metal Product Manufacturing332112 | 100-499 | ◐ LIKELY ACTIVE |
| ADAlpha Dyno Nobel | Lincoln | CA | Chemical Manufacturing325920 | 20-99 | ◐ LIKELY ACTIVE |
| AOAlpha Omega Winery LLC | Saint Helena | CA | Beverage and Tobacco Product Manufacturing312130 | 100-499 | ◐ LIKELY ACTIVE |
| AMAlta Manufacturing, INC. | Fremont | CA | Computer and Electronic Product Manufacturing334418 | 20-99 | ◐ LIKELY ACTIVE |
| AIAmd International Technologies LLC | Ontario | CA | Fabricated Metal Product Manufacturing332114 | 20-99 | ◐ LIKELY ACTIVE |
| ALAmerican Laminates | Riverbank | CA | Wood Product Manufacturing321999 | 20-99 | ◐ LIKELY ACTIVE |
| AMAmerican Modular Systems | Manteca | CA | Wood Product Manufacturing321991 | — | ◐ LIKELY ACTIVE |
| APAmerican Pallet INC. | Oakdale | CA | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| ASAmerican Security Products | Fontana | CA | Fabricated Metal Product Manufacturing332439 | 100-499 | ◐ LIKELY ACTIVE |
| ACAnaplex CORP | Paramount | CA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| AIAnco International, INC | San Bernardino | CA | Fabricated Metal Product Manufacturing332912 | 20-99 | ◐ LIKELY ACTIVE |
| AFAndari Fashion INC. | El Monte | CA | Apparel Manufacturing315120 | 20-99 | ◐ LIKELY ACTIVE |
| AIAnheuser-busch INC. | Van Nuys | CA | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| ALAnheuser-busch, LLC - Fairfield Brewery | Fairfield | CA | Food Manufacturing311942 | 100-499 | ◐ LIKELY ACTIVE |
| AEApt Electronics, INC. | Anaheim | CA | Computer and Electronic Product Manufacturing334412 | 20-99 | ◐ LIKELY ACTIVE |
Array Science, LLC | Sausalito | CA | Chemical Manufacturing325411 | 1-19 | ◐ LIKELY ACTIVE |
| AAstronic | Aliso Viejo | CA | Computer and Electronic Product Manufacturing334412 | 100-499 | ◐ LIKELY ACTIVE |
Aubin Industries INC. | Tracy | CA | Plastics and Rubber Products Manufacturing326150 | 1-19 | ◐ LIKELY ACTIVE |
| APAutomation Plating CORP | Glendale | CA | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
A-vac Industries, INC | Anaheim | CA | Machinery Manufacturing333911 | 1-19 | ◐ LIKELY ACTIVE |
| AMAvibank Mfg. INC Sps/pcc | North Hollywood | CA | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| AIAvk Industrial Products | Valencia | CA | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| AFAzuma Foods International, INC. USA | Hayward | CA | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
Bachem Americas INC | Torrance | CA | Chemical Manufacturing325411 | — | ◐ LIKELY ACTIVE |
| BABaltimore Aircoil CO INC | Madera | CA | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| BCBasalite Concrete Products Dixon | Dixon | CA | Nonmetallic Mineral Product Manufacturing327331 | 100-499 | ◐ LIKELY ACTIVE |
| BTBenda Tool & Model Works INC | Hercules | CA | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| BSBerger Steel Corporation | Mcclellan | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| BNBerkeley Nutritional Manufacturing CORP. | Livermore | CA | Food Manufacturing311511 | 20-99 | ◐ LIKELY ACTIVE |
| BWBernardo Winery, INC. | San Diego | CA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |
| BLB-k Lighting | Madera | CA | Electrical Equipment, Appliance & Component Manufacturing335121 | 20-99 | ◐ LIKELY ACTIVE |
| BBBluescope Buildings North America INC | Visalia | CA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| BWBottaia Winery | Temecula | CA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| BPBright People Foods | Woodland | CA | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
| CCalcompusa | Carlsbad | CA | Computer and Electronic Product Manufacturing334418 | 20-99 | ◐ LIKELY ACTIVE |
| CCCalifornia Concentrate Company | Acampo | CA | Food Manufacturing311411 | 20-99 | ◐ LIKELY ACTIVE |
| CDCalifornia Dairies INC Visalia | Visalia | CA | Food Manufacturing311511 | 500+ | ◐ LIKELY ACTIVE |
| CSCalifornia Steel Industries INC | Fontana | CA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CMCargill Meat Solutions Corporation | Fresno | CA | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| CCCastoro Cellars | San Miguel | CA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |