 Dec Electronic Assembly LLC | Santa Ana | 20–99 | ● ACTIVE |
| EMExpress Manufacturing INC | Santa Ana | — | ● ACTIVE |
 Pioneer Circuits, INC | Santa Ana | 100–499 | ● ACTIVE |
 Ttm Technologies, INC. | Santa Ana | 100–499 | ● ACTIVE |
 Accurate Circuit Engineering, INC | Santa Ana | — | ● ACTIVE |
 Bokam Engineering INC | Santa Ana | — | ● ACTIVE |
 Cemtek Environmental, INC. | Santa Ana | — | ● ACTIVE |
 Merit Cables Incorporated | Santa Ana | — | ● ACTIVE |
 Nihon Kohden Orangemed, LLC | Santa Ana | — | ● ACTIVE |
 Parpro Technologies INC. | Santa Ana | — | ● ACTIVE |
 Qed INC | Santa Ana | — | ● ACTIVE |
 Regal Technology Partners, INC. | Santa Ana | — | ● ACTIVE |
 Secure Communication Systems, INC. | Santa Ana | — | ● ACTIVE |
 Accelerated Memory Production, INC. | Santa Ana | — | ● ACTIVE |
 Brandywine Communications | Santa Ana | — | ● ACTIVE |
 Davida Technology Partners, INC. | Santa Ana | — | ● ACTIVE |
 Hirsch Secure INC. | Santa Ana | — | ● ACTIVE |
 International Electronic Design Group, INC. | Santa Ana | — | ● ACTIVE |
| NLNextnextnext, LLC | Santa Ana | — | ● ACTIVE |
 Quantum Digital Technology, INC. | Santa Ana | — | ● ACTIVE |
 Rhombus Industries INC. | Santa Ana | — | ● ACTIVE |
 Sbg Systems North America, INC | Santa Ana | — | ● ACTIVE |
| Tactical Micro, INC. | Santa Ana | — | ● ACTIVE |
| Ttm Technologies, INC. | Santa Ana | — | ● ACTIVE |
 Undersea Systems International, INC. | Santa Ana | — | ● ACTIVE |
 Visible Intellect LLC | Santa Ana | — | ● ACTIVE |
 Winsoft, INC. | Santa Ana | — | ● ACTIVE |
| CACherry Aerospace | Santa Ana | — | ◐ LIKELY ACTIVE |
 Justice Tech Solutions LLC | Santa Ana | — | ◐ LIKELY ACTIVE |
| Ttm Printed Circuit Group, LLC | Santa Ana | — | ◐ LIKELY ACTIVE |
| FFssi | Santa Ana | 100–499 | ◐ LIKELY ACTIVE |
| PCPrecision Circuits West,inc. | Santa Ana | — | ◐ LIKELY ACTIVE |
| DEData Electronics Services | Santa Ana | — | ◇ UNVERIFIED |
| FCFilter Concepts INC | Santa Ana | — | ◇ UNVERIFIED |
| ICItt Corporation | Santa Ana | — | ◇ UNVERIFIED |
| MCMicrosemi CORP | Santa Ana | — | ◇ UNVERIFIED |
| OCO C Alphanetics INC | Santa Ana | — | ◇ UNVERIFIED |
| 0Q03329700-00w001 Q.e.d., Inc.-q.e.d., INC. | Santa Ana | 20–99 | ◐ LIKELY ACTIVE |
| CCCaltronics Circuits, LLC | Santa Ana | — | ◐ LIKELY ACTIVE |
| IIIteris INC. | Santa Ana | 500+ | ◐ LIKELY ACTIVE |
| MAMaruwa America CORP. | Santa Ana | — | ◐ LIKELY ACTIVE |
| NINivek Industries, INC | Santa Ana | — | ◐ LIKELY ACTIVE |
| OROmniphase Research Laboratories INC | Santa Ana | — | ◐ LIKELY ACTIVE |
| YCYs Controls, LLC | Santa Ana | — | ◐ LIKELY ACTIVE |
| MEMemory Experts International INC | Santa Ana | — | ◇ UNVERIFIED |
| AAAai Acl Technologies | Santa Ana | — | ◇ UNVERIFIED |
| ALAir Liquide Global E&c Solutions US INC | Santa Ana | — | ◇ UNVERIFIED |
| AGAll Green Electronics Recycling | Santa Ana | — | ◇ UNVERIFIED |
| AEAllied Electronic Services INC. | Santa Ana | — | ◇ UNVERIFIED |
| AAudeze | Santa Ana | — | ◇ UNVERIFIED |
