| WLWhite Labs INC | San Diego | CA | Food Manufacturing311999 | 20-99 | ◐ LIKELY ACTIVE |
| HHoneywell | San Diego | CA | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| SSantier | San Diego | CA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◇ UNVERIFIED |
| AAbzena | San Diego | CA | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| AEAdvanced Electromagnetics INC | San Diego | CA | Plastics and Rubber Products Manufacturing326150 | — | ◐ LIKELY ACTIVE |
| ABAdvin Biotech INC | San Diego | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| AIAem, INC | San Diego | CA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| AMApex Medical Technologies INC | San Diego | CA | Plastics and Rubber Products Manufacturing326121 | — | ◐ LIKELY ACTIVE |
| ABAthletic Brewing Company - Trade | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | 20-99 | ◐ LIKELY ACTIVE |
| BCBenchmark Custom Welding INC | San Diego | CA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| BABrewery at the Top of the Mountain LLC Dba Fall Brewing Company | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| CICytohub INC | San Diego | CA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| DDDrs Daylight Solutions | San Diego | CA | Computer and Electronic Product Manufacturing334510 | 100-499 | ◐ LIKELY ACTIVE |
| EVEast Village Brewing Company | San Diego | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| ECEaton Corporation | San Diego | CA | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◐ LIKELY ACTIVE |
| EDEdan Diagnostics INC | San Diego | CA | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| GAGeneral Atomics - Rancho Bernardo - G75 | San Diego | CA | Machinery Manufacturing333999 | 100-499 | ◐ LIKELY ACTIVE |
| GDGeneral Dynamics/nassco | San Diego | CA | Transportation Equipment Manufacturing336611 | 500+ | ◐ LIKELY ACTIVE |
| GSGrifols San Diego | San Diego | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| GCGuthrie CiderWorks LLC | San Diego | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| HVHoya Vision Care | San Diego | CA | Miscellaneous Manufacturing339115 | — | ◐ LIKELY ACTIVE |
| HUHusks Unlimited | San Diego | CA | Food Manufacturing311411 | — | ◐ LIKELY ACTIVE |
| IIImmunicom INC. | San Diego | CA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| JJuneshine | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
| LILinkquest INC. | San Diego | CA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| LCLost Cause Meadery | San Diego | CA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| MSMalin Space Science Systems, INC | San Diego | CA | Machinery Manufacturing333310 | — | ▲ REPORTED CLOSED |
| MRMarine & Restaurant Fabricators, INC. | San Diego | CA | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| MBMast Biosurgery INC | San Diego | CA | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| MSMicrobiologics - San Diego | San Diego | CA | Chemical Manufacturing325413 | 20-99 | ◐ LIKELY ACTIVE |
| NBNaval Base San Diego | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| NNNude Nicotine | San Diego | CA | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| PCParker-hannifin Corporation | San Diego | CA | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
| PSPci San Diego INC | San Diego | CA | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| PTProvidien Thermoforming | San Diego | CA | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| PMProvisio Medical INC | San Diego | CA | Fabricated Metal Product Manufacturing332992 | — | ◐ LIKELY ACTIVE |
| RIRasirc INC | San Diego | CA | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| RIRasirc INC | San Diego | CA | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| RSResonetics San Diego | San Diego | CA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| SDSan Diego | San Diego | CA | Food Manufacturing311412 | 1-19 | ◐ LIKELY ACTIVE |
Sekisui Diagnostics | San Diego | CA | Chemical Manufacturing325413 | 100-499 | ◐ LIKELY ACTIVE |
Sekisui Diagnostics LLC | San Diego | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| SCShowboat Custom Coating INC | San Diego | CA | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| SESignal Engineering INC | San Diego | CA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| SESigntech Electrical Advertising INC | San Diego | CA | Printing and Related Support Activities323111 | 100-499 | ◐ LIKELY ACTIVE |
| SSSmc Signs, INC. | San Diego | CA | Miscellaneous Manufacturing339950 | 1-19 | ◐ LIKELY ACTIVE |
| SSSpecialty Steel Products, INC. | San Diego | CA | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| SSStoryhouse Spirits | San Diego | CA | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◐ LIKELY ACTIVE |
| SISurfacemode, INC | San Diego | CA | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| SHSynergy Health Ast LLC | San Diego | CA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |