| EEEms Equipment INC | Santa Ana | — | ◇ UNVERIFIED |
| EPEngineering Plating, INC. | Santa Ana | — | ◇ UNVERIFIED |
| EBEnterprise Baler | Santa Ana | — | ◇ UNVERIFIED |
| ELEscalette LLC Dba Rss Manufacturing | Costa Mesa | — | ◇ UNVERIFIED |
| ESEuroline Steel Windows | Santa Ana | — | ◇ UNVERIFIED |
 Euro Precision, Inc. | Mission Viejo | — | ◇ UNVERIFIED |
| FIFabcon INC | Santa Ana | — | ◇ UNVERIFIED |
| FDFabtron Design & Manufacturing , INC. | Anaheim | — | ◇ UNVERIFIED |
| FFFairchild Fastener Group Rosan | Santa Ana | — | ◇ UNVERIFIED |
| FEFastener Express | Santa Ana | — | ◇ UNVERIFIED |
| FEFastener Express | Santa Ana | — | ◇ UNVERIFIED |
| FMFence Menders | Santa Ana | — | ◇ UNVERIFIED |
| FMFence Menders INC | Santa Ana | — | ◇ UNVERIFIED |
| FPFence Pros | Santa Ana | — | ◇ UNVERIFIED |
| FMFender Musical Instruments Corporation | Anaheim | — | ◇ UNVERIFIED |
| FIFerro Iron Products | Orange | — | ◇ UNVERIFIED |
| FWFlange Wizard INC | Placentia | — | ◇ UNVERIFIED |
| FGFlare Group Dba Aviation Equip Process | Costa Mesa | — | ◇ UNVERIFIED |
| FPFlathers Precision INC | Santa Ana | — | ◇ UNVERIFIED |
| FCFletcher Coating CO | Orange | — | ◇ UNVERIFIED |
| FFmh | Irvine | — | ◇ UNVERIFIED |
| FFFMK Firearms Inc. | Placentia | — | ◇ UNVERIFIED |
| FCFood Cart USA West Coast INC | Costa Mesa | — | ◇ UNVERIFIED |
 Forespar Products CORP. | Rancho Santa Margari | — | ◇ UNVERIFIED |
| FCFormer Chicago Musical Instruments-remediation Site | Fullerton | — | ◇ UNVERIFIED |
| FCFormer Ctc Global Facility | Santa Ana | — | ◇ UNVERIFIED |
| FSFormer S&s Polishing and Plating | Anaheim | — | ◇ UNVERIFIED |
| FGForm Grind Corporation | Rcho Sta Marg | — | ◇ UNVERIFIED |
| FSFtb & Son INC | Garden Grove | — | ◇ UNVERIFIED |
| FCFullerton Custom Works INC | Fullerton | — | ◇ UNVERIFIED |
| GIGard INC | Fullerton | — | ◇ UNVERIFIED |
| GPGarland's Precision INC. | Fullerton | — | ◇ UNVERIFIED |
| GMGarrison Manufacturing | Santa Ana | — | ◇ UNVERIFIED |
| GJGary Johnson and Inga Johnson | San Clemente | — | ◇ UNVERIFIED |
| GCGemtech Coatings | Brea | — | ◇ UNVERIFIED |
| GIGemtech Ind, Good Earth Mfg INC | Huntington Beach | — | ◇ UNVERIFIED |
| GUGeneral Underground Fire Protection INC | Orange | — | ◇ UNVERIFIED |
| GRGerard Roofing Technologies | Brea | — | ◇ UNVERIFIED |
| GHGeva Holdings Company, LLC | La Habra | — | ◇ UNVERIFIED |
| GHGlass House Security, LLC | Huntington Beach | — | ◇ UNVERIFIED |
| GCGna Cabinets | Orange | — | ◇ UNVERIFIED |
| GGGolden Gate Welding & Iron Works | Stanton | — | ◇ UNVERIFIED |
| GSGomez Sandblasting | Anaheim | — | ◇ UNVERIFIED |
| GPGorilla's Polishing CORP | La Habra | — | ◇ UNVERIFIED |
| GMG.p. Manufacturing, INC | Orange | — | ◇ UNVERIFIED |
| GEGraham Enterprises | Garden Grove | — | ◇ UNVERIFIED |
| GWGreat Western Grinding INC | Huntington Beach | — | ◇ UNVERIFIED |
| GIGriswald Industries INC | Costa Mesa | — | ◇ UNVERIFIED |
 Griswold Industries Dba Soundcast CO | Costa Mesa | — | ◇ UNVERIFIED |
| GMGutierrez Manufacturing INC | Santa Ana | — | ◇ UNVERIFIED |
