| ALAlan Laboratories INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ALAlan Laboratories INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ALAlan Laboratories INC | San Diego | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| ASAlere San Diego, INC | San Diego | CA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| AGAlexandria Grad Labs | San Diego | CA | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| ARAlexandria Real Estate Equities, INC. | San Diego | CA | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| AIAligrace Inc | San Diego | CA | Apparel Manufacturing315210 | — | ◇ UNVERIFIED |
| ATAlthea Technologies INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AAmeditech | San Diego | CA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AIAmerican Internet Services INC | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| ALAmerican Laboratory Trading | San Diego | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| ASAmerican Sleep Products | San Diego | CA | Furniture and Related Product Manufacturing337910 | — | ◇ UNVERIFIED |
| ACAmeri-force Craft Services, INC. | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| ALAmg Logistics | San Diego | CA | Transportation Equipment Manufacturing336992 | — | ◇ UNVERIFIED |
| AIAmprion INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AUAmp United | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| ADAnalog Devices INC | San Diego | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| AEAoife Enterprises Inc. | San Diego | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIApple INC. (snd07) | San Diego | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| AIAratay, Inc. | San Diego | CA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| AMArchitectural Materials | San Diego | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| APArc Products INC | San Diego | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| AIArm INC. | San Diego | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| AEArmstrong Elevator CO. | San Diego | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| ATArnatar Therapeutics | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ATArris Technology INC | San Diego | CA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| ATArrs Technologies LLC | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| AMAscentx Medical INC | San Diego | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AMAstute Medical INC | San Diego | CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| ABAthletic Brewing Company LLC | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| APAtyr Pharma INC | San Diego | CA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| AAAurum Assembly Plus | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| AUAustal USA - Bae | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| AUAustal Usa, LLC | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| ACAvid Center C/o Meissner | San Diego | CA | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| ATAviles Truck Service INC | San Diego | CA | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| AAAxillon Aerospace (san Diego) INC | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◇ UNVERIFIED |
| AAxispharm | San Diego | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| AAxispharm | San Diego | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ADA.y.'s Designs in Iron INC | San Diego | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| ARAztec Rentals INC | San Diego | CA | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| BSBae Systems INC. | San Diego | CA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| BSBae Systems/southcoast Welding & Manufacturing | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| BJBailey Jewelry Repair | San Diego | CA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| BFBaja Fabrication & Shock Works | San Diego | CA | Transportation Equipment Manufacturing336330 | — | ◇ UNVERIFIED |
| BBBash Boy Enterprises Inc | San Diego | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BIBasile INC | San Diego | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| BCBci Coca Cola Bottling Company of Los Angeles | San Diego | CA | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| BBd | San Diego | CA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| BWBeach Where? Designs | San Diego | CA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |