| SASierra Army Depot | Herlong | CA | Transportation Equipment Manufacturing336992 | — | ◐ LIKELY ACTIVE |
| STSupreme Truck Bodies of California | Moreno Valley | CA | Transportation Equipment Manufacturing336211 | — | ◐ LIKELY ACTIVE |
| TETilton Engineering INC | Buellton | CA | Transportation Equipment Manufacturing336399 | 20-99 | ◐ LIKELY ACTIVE |
| UCUS Coast Guard Integrated Support Command | Alameda | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| USU S Marine Corps Mcb Camp Pendleton | Camp Pendleton | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| UNUS Naval Base San Diego | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| UNUS Navy Naval Submarine Base San Diego | San Diego | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| AIAcratech, INC. | Pomona | CA | Transportation Equipment Manufacturing336390 | 1-19 | ◇ UNVERIFIED |
| TATruck Accessories Group | Woodland | CA | Transportation Equipment Manufacturing336214 | — | ◇ UNVERIFIED |
Aero Mobility, INC. | Anaheim | CA | Transportation Equipment Manufacturing336110 | — | ◐ LIKELY ACTIVE |
| AFAir Frame Forming INC | Paramount | CA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| AIAnysignal INC | El Segundo | CA | Transportation Equipment Manufacturing336414 | — | ◐ LIKELY ACTIVE |
Ares Industries, INC | El Segundo | CA | Transportation Equipment Manufacturing336414 | — | ◐ LIKELY ACTIVE |
Astrobotic Technology INC | Mojave | CA | Transportation Equipment Manufacturing336414 | — | ◐ LIKELY ACTIVE |
| AIAstroforge, INC. | Seal Beach | CA | Transportation Equipment Manufacturing336414 | 20-99 | ◐ LIKELY ACTIVE |
| BEBoeing Encore Interiors - Huntington Beach 1 | Huntington Beach | CA | Transportation Equipment Manufacturing336411 | 100-499 | ◐ LIKELY ACTIVE |
| BCByd Coach & Bus LLC | Lancaster | CA | Transportation Equipment Manufacturing336120 | — | ◐ LIKELY ACTIVE |
| CEContour Engineering INC. | Santa Ana | CA | Transportation Equipment Manufacturing336413 | 1-19 | ◐ LIKELY ACTIVE |
Copterworks INC | Irwindale | CA | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| DLDieform LLC | Jurupa Valley | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
Ejay Filtration, INC. | Riverside | CA | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| EWElectronic Water INC | Morgan Hill | CA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| FPFactory Pipe | Ukiah | CA | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
Ftg INC | Modesto | CA | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
Ftg INC | Santa Fe Springs | CA | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| HEHi-tech Emergency Vehicle Service, INC. | Oakdale | CA | Transportation Equipment Manufacturing336112 | 20-99 | ◐ LIKELY ACTIVE |
| HMHydro-fitting Manufacturing Corporation | Covina | CA | Fabricated Metal Product Manufacturing332912 | 20-99 | ◐ LIKELY ACTIVE |
| JIJri, INC. | Westlake Village | CA | Transportation Equipment Manufacturing336419 | 20-99 | ◐ LIKELY ACTIVE |
Kaizen Aerospace, INC. | San Francisco | CA | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| LALanic Aerospace LLC | Huntington Beach | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| MCMaroney Company, LLC | Northridge | CA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
Maxar Space Robotics LLC | Pasadena | CA | Transportation Equipment Manufacturing336419 | — | ◐ LIKELY ACTIVE |
Mccormick's Metrology Company, LLC | Oxnard | CA | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| MSMeggitt Safety Systems INC | Simi Valley | CA | Fabricated Metal Product Manufacturing332912 | — | ▲ REPORTED CLOSED |
| MLMoss Landing Marine, LLC | Moss Landing | CA | Transportation Equipment Manufacturing336611 | 1-19 | ◐ LIKELY ACTIVE |
| RIRohr, INC. | Riverside | CA | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
Seleno Industries, INC. | Pasadena | CA | Transportation Equipment Manufacturing336414 | — | ◐ LIKELY ACTIVE |
| SASilver Aerospace, LLC | Agoura Hills | CA | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| SBSpecialized Bicycle Components | Morgan Hill | CA | Transportation Equipment Manufacturing336991 | 100-499 | ◐ LIKELY ACTIVE |
| STSPS TECHNOLOGIES, LLC DBA SHUR-LOK Company | Irvine | CA | Fabricated Metal Product Manufacturing332722 | 100-499 | ◐ LIKELY ACTIVE |
| SMSummit Machine, Inc. | Ontario | CA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| STSystem Technical Support Corporation | Torrance | CA | Transportation Equipment Manufacturing336992 | — | ◐ LIKELY ACTIVE |
| TATa Aerospace CO | Valencia | CA | Fabricated Metal Product Manufacturing332510 | — | ▲ REPORTED CLOSED |
| TTTpd Trailers, INC. | Sacramento | CA | Transportation Equipment Manufacturing336212 | 1-19 | ◐ LIKELY ACTIVE |
| VSVitesse Systems - Newark | Newark | CA | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
Vse Aviation Services, CO. | Montebello | CA | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
Xdown INC. | Long Beach | CA | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| AAAcme Auto Head Lining CO | Long Beach | CA | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| AFAero Form Tech INC | Placentia | CA | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| AJAlan Johnson Performance Engineering INC | Santa Maria | CA | Transportation Equipment Manufacturing336992 | 1-19 | ◐ LIKELY ACTIVE |