Textile Products, INC. | Anaheim | 20–99 | ● ACTIVE |
Cevians LLC | Costa Mesa | — | ● ACTIVE |
Glas Werk INC | Rancho Santa Margarita | — | ● ACTIVE |
Infinite Optics INC. | Santa Ana | — | ● ACTIVE |
| LELattice Electro Optics, INC. | Fullerton | — | ● ACTIVE |
Reynard Corporation | San Clemente | — | ● ACTIVE |
Spec Formliners, INC. | Santa Ana | 20–99 | ● ACTIVE |
| SSSpectrum Scientific Incorporated | Irvine | — | ● ACTIVE |
Cts Cement Manufacturing CORP | Garden Grove | — | ● ACTIVE |
Jungk Nguyen Innovations LLC | Stanton | — | ● ACTIVE |
Media Blast & Abrasive, INC. | Brea | — | ● ACTIVE |
Susan L Pistacchi | Newport Beach | — | ● ACTIVE |
| IBIrvine Batch Plant | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| APAnaheim Plant 16 | Anaheim | 20–99 | ◐ LIKELY ACTIVE |
| GAGcp Applied Technologies INC | Santa Ana | 1–19 | ◐ LIKELY ACTIVE |
| HMHood Mfg INC | Santa Ana | 20–99 | ◐ LIKELY ACTIVE |
| XCXerxes CORP | Anaheim | — | ◇ UNVERIFIED |
| ABAngelus Block - Orange | Orange | 20–99 | ◐ LIKELY ACTIVE |
| BRBender Ready Mix INC | Santa Ana | 20–99 | ◐ LIKELY ACTIVE |
| BTBlock Tops - Anaheim | Anaheim | 20–99 | ◐ LIKELY ACTIVE |
| IIrvine | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| SGSaint Gobain Glass Corporation | Huntington Beach | 100–499 | ◐ LIKELY ACTIVE |
| TITwed-dell's INC. | Santa Ana | — | ◐ LIKELY ACTIVE |
| OPOlsen Pavingstone INC | San Juan Capistrano | — | ◐ LIKELY ACTIVE |
| ARAssociated Ready Mixed Concrete | Fountain Valley | — | ◇ UNVERIFIED |
| CPCatalinia Pacific Concrete CO San Juan Plant | San Juan Capistrano | — | ◇ UNVERIFIED |
| CICemex Irvine Plant | Irvine | — | ◇ UNVERIFIED |
| CICeradyne INC 3m Company | Irvine | — | ◇ UNVERIFIED |
| GIGuardian Industries CORP | Fullerton | — | ◇ UNVERIFIED |
| HRHolliday Rock - Irvine | Irvine | — | ◇ UNVERIFIED |
| HRHolliday Rock Santa Ana 25 | Santa Ana | — | ◇ UNVERIFIED |
| HRHolliday Rock Westminster 20 | Westminster | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete CO | Irvine | — | ◇ UNVERIFIED |
| NINewport Industrial Glass INC | Stanton | — | ◇ UNVERIFIED |
| NUNewport-mesa Uni Sch Dist | Costa Mesa | — | ◇ UNVERIFIED |
| NANorth American Recycling and Crushing LLC | Anaheim | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix Lake Forest Plant 18 | Foothill Ranch | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix Santa Ana Plant 17 | Santa Ana | — | ◇ UNVERIFIED |
| WMWestpac Materials | Orange | — | ◇ UNVERIFIED |
| ACAll Counties Glass | Santa Ana | 1–19 | ◐ LIKELY ACTIVE |
| BGBrandt Group, INC. | Newport Beach | — | ◐ LIKELY ACTIVE |
| CCC2 California Anaheim 1341 Blue Gum Street | Anaheim | 1–19 | ◐ LIKELY ACTIVE |
| CCC2 California Placentia 330 West Crowther Avenue | Placentia | 1–19 | ◐ LIKELY ACTIVE |
| CICalifornia Irvine 4 Jenner Street | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| CICalifornia Irvine 75 Doppler | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| DFDaly Fabrication Facility | Anaheim | 1–19 | ◐ LIKELY ACTIVE |
| LFLake Forest Plant #18 | Foothill Ranch | 1–19 | ◐ LIKELY ACTIVE |
| SCSan Clemente Plant #20 | San Clemente | 1–19 | ◐ LIKELY ACTIVE |
| SASanta Ana Plant #17 | Santa Ana | 1–19 | ◐ LIKELY ACTIVE |
| SPStanton Plant | Stanton | 20–99 | ◐ LIKELY ACTIVE |