| UNUS Naval Base San Diego | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| UNUS Navy Naval Air Station North Island | Coronado | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| ASAlere San Diego | San Diego | CA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| CSCalifornia Splendor INC | San Diego | CA | Food Manufacturing311999 | 20-99 | ◐ LIKELY ACTIVE |
| CKCp Kelco | San Diego | CA | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| FIFrazee Industries | San Diego | CA | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| HIHoneywell Industrial Safety | San Diego | CA | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
| IIIrisys INC | San Diego | CA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| LCL3 Communications Conic | San Diego | CA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| LTLighthorse Technologies, INC. | San Diego | CA | Computer and Electronic Product Manufacturing334220 | 1-19 | ◐ LIKELY ACTIVE |
| NSNatl Steel & Shipbuilding a General Dynamics CO | San Diego | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| PFPall Filtration & Separations Group INC | San Diego | CA | Plastics and Rubber Products Manufacturing326113 | — | ◐ LIKELY ACTIVE |
| PCPolese Company, INC | San Diego | CA | Fabricated Metal Product Manufacturing332117 | — | ◐ LIKELY ACTIVE |
| SDSan Diego Galvanizing INC | San Diego | CA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| SCSteris Corporation | San Diego | CA | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| UNUS Navy Naval Submarine Base San Diego | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
Adipogen Corporation | San Diego | CA | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
Aztec Ip Solutions, LLC | San Diego | CA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
Bkm Officeworks LLC | San Diego | CA | Furniture and Related Product Manufacturing337214 | — | ◐ LIKELY ACTIVE |
| CICordx, INC. | San Diego | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
Eklipse Solutions, INC. | San Diego | CA | Miscellaneous Manufacturing339112 | — | ◐ LIKELY ACTIVE |
Elmag INC | San Diego | CA | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
Exodus Dynamics INC | San Diego | CA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
Food Finders LLC | San Diego | CA | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| GFGaffney Foods INC | San Diego | CA | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
| HIHarrington Industrial Plastics LLC | San Diego | CA | Plastics and Rubber Products Manufacturing326122 | — | ▲ REPORTED CLOSED |
Heritage Alt LLC | San Diego | CA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
Hydrovida | San Diego | CA | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
J. I. Machine Company, INC. | San Diego | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JSJuneshine Scripps Ranch | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | 20-99 | ◐ LIKELY ACTIVE |
Lighthouse Sign CO | San Diego | CA | Miscellaneous Manufacturing339950 | — | ◐ LIKELY ACTIVE |
| MAMontbleau & Associates, LLC. | San Diego | CA | Furniture and Related Product Manufacturing337212 | 20-99 | ◐ LIKELY ACTIVE |
Nielsen Biosciences INC | San Diego | CA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| PSPacific Steel Group, LLC | San Diego | CA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
Rapid Defense INC. | San Diego | CA | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| SISchroff INC | San Diego | CA | Computer and Electronic Product Manufacturing334111 | — | ◐ LIKELY ACTIVE |
Sohm, INC | San Diego | CA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| SISports Inovation CORP | San Diego | CA | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| SPStella Polly INC. | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | 20-99 | ◐ LIKELY ACTIVE |
Steren Solutions LLC | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335921 | — | ◐ LIKELY ACTIVE |
Synergy Systems, LLC | San Diego | CA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
The Branding Machine | San Diego | CA | Miscellaneous Manufacturing339950 | — | ◐ LIKELY ACTIVE |
Touch Down LLC | San Diego | CA | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
US Carbon Company LLC | San Diego | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| FWFranco Whole Foods LLC | San Diego | CA | Food Manufacturing311830 | 20-99 | ◐ LIKELY ACTIVE |
| NSNo Second Thoughts INC | San Diego | CA | Apparel Manufacturing315240 | 20-99 | ◐ LIKELY ACTIVE |
| RCReid & Clark Screen Arts CO | San Diego | CA | Printing and Related Support Activities323119 | 1-19 | ◐ LIKELY ACTIVE |
| SMSimonz Machine Dba Hyve Technologies | San Diego | CA | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| TGTecate Group | San Diego | CA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| WSWestcoat Specialty Coatings Systems | San Diego | CA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |