| KIKaga INC | Fountain Valley | — | ◇ UNVERIFIED |
| KEKarcher Environmental INC | Orange County | — | ◇ UNVERIFIED |
| KTKeysight Technologies INC | Rancho Santa Margarita | — | ◇ UNVERIFIED |
| KIKing Instrument CO | Garden Grove | — | ◇ UNVERIFIED |
| KLKnight LLC | Irvine | — | ◇ UNVERIFIED |
| LCL3 Communications, Interstate Electronic | Anaheim | — | ◇ UNVERIFIED |
| LIL3harris - Interstate Electronics Corporation | Yorba Linda | — | ◇ UNVERIFIED |
| LCLaminating Company of America | Lake Forest | — | ◇ UNVERIFIED |
| LALang Automotive | Lake Forest | — | ◇ UNVERIFIED |
| LRLang Real Estate LLC | Irvine | — | ◇ UNVERIFIED |
| LILantic INC Dba Molded Interconnect | Foothill Ranch | — | ◇ UNVERIFIED |
| LFLeedom Family Ranch LLC Dba Semi-kinetics INC | Lake Forest | — | ◇ UNVERIFIED |
| LILifecom, INC. | Huntington Beach | — | ◇ UNVERIFIED |
| LELing Electronics INC Subs Mec | Anaheim | — | ◇ UNVERIFIED |
| LILitronic Industries | Costa Mesa | — | ◇ UNVERIFIED |
| LILittelfuse INC Dba US Sensor CORP | Orange | — | ◇ UNVERIFIED |
| LILittelfuse INC Dba US Sensor CORP | Orange | — | ◇ UNVERIFIED |
| LGLogi Graphics INC | Huntington Beach | — | ◇ UNVERIFIED |
| MCMa Com Technology Solutions INC | Newport Beach | — | ◇ UNVERIFIED |
| MMagtek | Seal Beach | — | ◇ UNVERIFIED |
| MSMarvell Semiconductor, INC. | Irvine | — | ◇ UNVERIFIED |
| MMasimo | Irvine | — | ◇ UNVERIFIED |
| MMaxlinear | Irvine | — | ◇ UNVERIFIED |
| MIMediVision Inc | Anaheim | — | ◇ UNVERIFIED |
| MCMichael Christopher Grimm | Aliso Viejo | — | ◇ UNVERIFIED |
| MIMicrogon INC | Laguna Hills | — | ◇ UNVERIFIED |
| MIMicrometals INC | Anaheim | — | ◇ UNVERIFIED |
| MIMicroplex INC | Santa Ana | — | ◇ UNVERIFIED |
| MSMideo Systems, Inc. | Huntington Beach | — | ◇ UNVERIFIED |
| MCMission Critical Electronics, LLC | Huntington Beach | — | ◇ UNVERIFIED |
| MQMolecular Quorum, INC. | Huntington Beach | — | ◇ UNVERIFIED |
| MCMotorola Corporation | Irvine | — | ◇ UNVERIFIED |
| MIMoving Image Technologies, LLC | Fountain Valley | — | ◇ UNVERIFIED |
| MIMoving Image Technologies, LLC | Fountain Valley | — | ◇ UNVERIFIED |
| MIMri Interventions INC | Irvine | — | ◇ UNVERIFIED |
| MEMulti-fineline Electronix INC | Anaheim | — | ◇ UNVERIFIED |
| NCNavigate Cardiac Structures | Lake Forest | — | ◇ UNVERIFIED |
| NCNeomedix Corporation | Tustin | — | ◇ UNVERIFIED |
| NMNeuros Medical INC | Aliso Viejo | — | ◇ UNVERIFIED |
| NFNewport Fab, LLC | Newport Beach | — | ◇ UNVERIFIED |
| NDNexgen Digital | Irvine | — | ◇ UNVERIFIED |
| NONw Orangethorpe, INC. | Fullerton | — | ◇ UNVERIFIED |
| OEOmega Emgineering INC Dba Newport Electronics INC | Santa Ana | — | ◇ UNVERIFIED |
| OIOmniprint, Inc. | Santa Ana | — | ◇ UNVERIFIED |
| OCOmohundro CO | Costa Mesa | — | ◇ UNVERIFIED |
| PAPacific Analytics LLC | Costa Mesa | — | ◇ UNVERIFIED |
| PEPacific Electronic Enterprises | Huntington Beach | — | ◇ UNVERIFIED |
 Pacific Transformer CORP | Anaheim | — | ◇ UNVERIFIED |
| PHPackard Hughes Interconnect | Irvine | — | ◇ UNVERIFIED |
 Panelight Components Group, LLC | Santa Ana | — | ◇ UNVERIFIED |
