| LCLost Cause Meadery | San Diego | CA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| 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 |
| TDTandem Diabetes | San Diego | CA | Miscellaneous Manufacturing339112 | — | ◐ LIKELY ACTIVE |
| TDTandem Diabetes Care, Inc. 6495 Marindustry Place | San Diego | CA | Miscellaneous Manufacturing339112 | 20-99 | ◐ LIKELY ACTIVE |
| TATeledyne A.p.i. | San Diego | CA | Computer and Electronic Product Manufacturing334516 | 100-499 | ◐ LIKELY ACTIVE |
| WCWd-40 Company | San Diego | CA | Petroleum and Coal Products Manufacturing324191 | 100-499 | ◐ LIKELY ACTIVE |
| WUWondfo USA CO LTD | San Diego | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| YYYou & Yours Distilling Co | San Diego | CA | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◐ LIKELY ACTIVE |
| ZAZenix Aerospace US INC. | San Diego | CA | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| 3S32nd Street Naval Station | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| ACAction Cleaning Corportation | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| AMAnocote Metal Finishing, INC. | San Diego | CA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| AWAtlas Wood Products, INC. | San Diego | CA | Wood Product Manufacturing321920 | — | ◐ LIKELY ACTIVE |
| BSBae Systems San Diego Ship Repair | San Diego | CA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| CMCabral Metalfab & Fance, Inc. | San Diego | CA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| CPCalifornia Precision Products INC | San Diego | CA | Machinery Manufacturing333414 | — | ◐ LIKELY ACTIVE |
| CCCalportland Company Miramar | San Diego | CA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| COCatalina Offshore Products, INC. | San Diego | CA | Food Manufacturing311710 | 20-99 | ◐ LIKELY ACTIVE |
| CMCemex Mission Valley Plant | San Diego | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CLCraftwurx LLC | San Diego | CA | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◐ LIKELY ACTIVE |
| DMDriscoll Mission Bay | San Diego | CA | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| GPGen Probe INC | San Diego | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| KIKrasnes INC | San Diego | CA | Leather and Allied Product Manufacturing316999 | — | ◐ LIKELY ACTIVE |
| MMagcanica | San Diego | CA | Computer and Electronic Product Manufacturing334513 | 20-99 | ◐ LIKELY ACTIVE |
| MAMiramar Asphalt | San Diego | CA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| MPMiramar Plant 33 | San Diego | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| PMPacific Maritime Freight Dba Pacific Tugboat Services | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| PSPacific Ship Repair & Fabrication | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |