 Circuit Services LLC | Northridge | — | ◇ UNVERIFIED |
| DPDamac Products LLC | La Mirada | — | ◇ UNVERIFIED |
| DCDelphi Control Systems INC | Pomona | — | ◇ UNVERIFIED |
| DDDelta Dvh Circuits | Van Nuys | — | ◇ UNVERIFIED |
| DTDelta Tau Data Systems INC | Chatsworth | — | ◇ UNVERIFIED |
| DWDel West Engineering | Valencia | — | ◇ UNVERIFIED |
| DDoorking | Inglewood | — | ◇ UNVERIFIED |
| DOD-tech Optoelectronics | Rowland Heights | — | ◇ UNVERIFIED |
| EElectrocube | Monrovia | — | ◇ UNVERIFIED |
| ETElectro Tech Products INC | Glendora | — | ◇ UNVERIFIED |
| GIGlenair INC | Glendale | — | ◇ UNVERIFIED |
| GIGlenair INC | Glendale | — | ◇ UNVERIFIED |
| GIGlenair, INC. | Palmdale | — | ◇ UNVERIFIED |
| GIGlenair, INC. | Glendale | — | ◇ UNVERIFIED |
| GAGlen Air Lathe Shop | Glendale | — | ◇ UNVERIFIED |
| HTHoi Tong International INC | Santa Fe Spgs | — | ◇ UNVERIFIED |
 Infineon Technologies Americas CORP | El Segundo | — | ◇ UNVERIFIED |
| IGItt Gilfillan | Van Nuys | — | ◇ UNVERIFIED |
| KDKen Duncan Corporation | Covina | — | ◇ UNVERIFIED |
| LGLitton Guidance and Control Sy | Northridge | — | ◇ UNVERIFIED |
| LMLockheed Martin Electro Optical | Pomona | — | ◇ UNVERIFIED |
| LTLucent Technologies | Alhambra | — | ◇ UNVERIFIED |
| MDMcdonnell Douglas Aerospace | Monrovia | — | ◇ UNVERIFIED |
| MDMcdonnell Douglas Helicopter CO | Culver City | — | ◇ UNVERIFIED |
| MAMicro Analog INC | La Verne | — | ◇ UNVERIFIED |
| MIMicrofabrica INC | Van Nuys | — | ◇ UNVERIFIED |
| MMMoldex Metric INC | Gardena | — | ◇ UNVERIFIED |
| NENatel Ems | Chatsworth | — | ◇ UNVERIFIED |
| NDNavcom Defense Electronics INC | El Monte | — | ◇ UNVERIFIED |
| NCNorthrop CORP Electronics Systems Div | Hawthorne | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Corporation | Hawthorne | — | ◇ UNVERIFIED |
| PCPerkin-elmer CORP Applied Sci | Pomona | — | ◇ UNVERIFIED |
| PIPhenomenex INC | Torrance | — | ◇ UNVERIFIED |
| PCPhilips Components Discrete P | Los Angeles | — | ◇ UNVERIFIED |
| PFPhoto Fabricators INC | Van Nuys | — | ◇ UNVERIFIED |
| QCQtech Corporation | Culver City | — | ◇ UNVERIFIED |
| RMRantec Microwave System, Inc, | Calabasas | — | ◇ UNVERIFIED |
| RERonan Engineering Company | Valencia | — | ◇ UNVERIFIED |
| SSSensor Systems INC | Chatsworth | — | ◇ UNVERIFIED |
| SSSignet Scientific CO | El Monte | — | ◇ UNVERIFIED |
| SISparling Instruments INC | El Monte | — | ◇ UNVERIFIED |
| SLSpectrum Laboratories INC | Rancho Dominguez | — | ◇ UNVERIFIED |
| TITecstar INC | City of Industry | — | ◇ UNVERIFIED |
| TITeradyne INC. | Agoura Hills | — | ◇ UNVERIFIED |
| TFThermo Fisher Scientific Corporation One Lambda INC | West Hills | — | ◇ UNVERIFIED |
| TETri-star Electronics International INC | El Segundo | — | ◇ UNVERIFIED |
| TATriumph Actuation Systems | Valencia | — | ◇ UNVERIFIED |
| TJTurbo Jet Prod CO INC | Rosemead | — | ◇ UNVERIFIED |
| WCWestern Circuits INC | Venice | — | ◇ UNVERIFIED |
| XCXerox CORP. | El Segundo | — | ◇ UNVERIFIED |
