| FBFUJIFILM Biosciences dba. FUJIFILM Irvine Scientific | Santa Ana | CA | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| GEGbf Enterprises INC | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| IIIbis Industries, INC. | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IIIteris INC. | Santa Ana | CA | Computer and Electronic Product Manufacturing334290 | 500+ | ◐ LIKELY ACTIVE |
| KAKb Auto LLC | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| KMKhaleesi Metal Services 1, INC | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| KKKimia Kitchen | santa Ana | CA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| KLKingspan Light Air Water | Santa Ana | CA | Fabricated Metal Product Manufacturing332321 | 20-99 | ◐ LIKELY ACTIVE |
| KNK&r Next Generation Bonding INC. | Santa Ana | CA | Machinery Manufacturing333242 | — | ◐ LIKELY ACTIVE |
| MUMagdrive US INC | Santa Ana | CA | Transportation Equipment Manufacturing336415 | — | ◐ LIKELY ACTIVE |
| MAMaruwa America CORP. | Santa Ana | CA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| MPMicro Precision Swiss, LLC (dba Orchid MPS, Orchid Santa Ana, Orchid Keller, Orchid Torrance) | Santa Ana | CA | Miscellaneous Manufacturing339112 | 100-499 | ◐ LIKELY ACTIVE |
| MMMidnight Munchies, Inc. | Santa Ana | CA | Food Manufacturing311991 | 20-99 | ◐ LIKELY ACTIVE |
| MWM & W Machine Corporation | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| NANikkiso ACD | Santa Ana | CA | Machinery Manufacturing333911 | 100-499 | ◐ LIKELY ACTIVE |
| NPNu-tech Precision Company LLC | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| OFOcean Formulations Inc. | Santa Ana | CA | Chemical Manufacturing325620 | 20-99 | ◐ LIKELY ACTIVE |
| OTOc Tactical LLC | Santa Ana | CA | Apparel Manufacturing315250 | — | ◐ LIKELY ACTIVE |
| OROmniphase Research Laboratories INC | Santa Ana | CA | Computer and Electronic Product Manufacturing334515 | — | ◐ LIKELY ACTIVE |
| OIOptofab Incorporated | Santa Ana | CA | Fabricated Metal Product Manufacturing332721 | — | ◐ LIKELY ACTIVE |
| PBPrimo Brands - Santa Ana Factory | Santa Ana | CA | Beverage and Tobacco Product Manufacturing312112 | 20-99 | ◐ LIKELY ACTIVE |
| SASanta Ana Plant #17 | Santa Ana | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMSky Machine, INC. | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| SCSouthern California Prosthetics INC. | Santa Ana | CA | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| STSPS Technologies dba Cherry Aerospace | Santa Ana | CA | Fabricated Metal Product Manufacturing332722 | 100-499 | ◐ LIKELY ACTIVE |
| S1Store 1 | Santa Ana | CA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| SSSusan Street Facility | Santa Ana | CA | Fabricated Metal Product Manufacturing332112 | 100-499 | ◐ LIKELY ACTIVE |
| SSSusan Street Plant | Santa Ana | CA | Textile Product Mills314110 | 100-499 | ◐ LIKELY ACTIVE |
| TITacshack INC | Santa Ana | CA | Fabricated Metal Product Manufacturing332994 | — | ◐ LIKELY ACTIVE |
| TBTam Bien Wholesale Corp. | Santa Ana | CA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| TSTechnic Sphere | Santa Ana | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| UCUS269 CA Santa Ana | Santa Ana | CA | Miscellaneous Manufacturing339113 | 1-19 | ◐ LIKELY ACTIVE |
| UCUSA Canning Food | Santa Ana | CA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| VCVantage Custom Classics Inc-California | Santa Ana | CA | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
| WBWarner Buildings | Santa Ana | CA | Fabricated Metal Product Manufacturing332112 | 100-499 | ◐ LIKELY ACTIVE |
| CGComeco Group, INC | Santa Ana | CA | Miscellaneous Manufacturing339950 | — | ◐ LIKELY ACTIVE |