| ATA Touch of Brass INC | Chino | — | ◇ UNVERIFIED |
| ACAtrium Corporation Dba Superior Windows & Doors | Ontario | — | ◇ UNVERIFIED |
| ADAxxess Door, Corp. | Ontario | — | ◇ UNVERIFIED |
| BPBakery Pan Services INC. | Ontario | — | ◇ UNVERIFIED |
| BDB & D Industrial | Rancho Cucamonga | — | ◇ UNVERIFIED |
| BIBest Iron Works | San Bernardino | — | ◇ UNVERIFIED |
| BSBeyond Steel Fabrication LLC | Redlands | — | ◇ UNVERIFIED |
| BSBeyond Steel Fabrication, LLC Dba Mission Steel Fabrication | Mentone | — | ◇ UNVERIFIED |
| BOBlack Oak Foundry | Ontario | — | ◇ UNVERIFIED |
| BPBlue Point Fastening, INC. | Chino | — | ◇ UNVERIFIED |
| BCBluescope Coated Products, LLC | Rancho Cucamonga | — | ◇ UNVERIFIED |
| BMB & M Machine INC | Fontana | — | ◇ UNVERIFIED |
| BLBonaco2 LLC | Upland | — | ◇ UNVERIFIED |
| BDBravo Design and Fabrication LLC | Ontario | — | ◇ UNVERIFIED |
| BSBright Shark Powder Coating, Rosa Garcia | Chino | — | ◇ UNVERIFIED |
 Brooks Industrial Marketplace | Fontana | — | ◇ UNVERIFIED |
| BMBrydenscot Metal Products INC | San Bernardino | — | ◇ UNVERIFIED |
| BCBulletproof Coating | San Bernardino | — | ◇ UNVERIFIED |
| CMCactus Metalworks INC. | Hesperia | — | ◇ UNVERIFIED |
| CICageco INC | Adelanto | — | ◇ UNVERIFIED |
| CDCal-Craft Design International Inc | San Bernardino | — | ◇ UNVERIFIED |
| CSCalifornia Steel Industries INC | Fontana | — | ◇ UNVERIFIED |
| CWCal West Manufacturing | Fontana | — | ◇ UNVERIFIED |
| CACamblin at 2257, LLC | Rialto | — | ◇ UNVERIFIED |
| CWCameron West Coast | Fontana | — | ◇ UNVERIFIED |
| CMCanam Metal Prod | San Bernardino | — | ◇ UNVERIFIED |
| CSCannon Safe INC | San Bernardino | — | ◇ UNVERIFIED |
| CSCannon Safe, INC. | San Bernardino | — | ◇ UNVERIFIED |
| CSCapital Steel Products | Ontario | — | ◇ UNVERIFIED |
| CSCapitol Steel Fabricatiors INC | Fontana | — | ◇ UNVERIFIED |
| CICastle Industries INC. of Ca. | Ontario | — | ◇ UNVERIFIED |
| CRCentech Rebar LLC | San Bernardino | — | ◇ UNVERIFIED |
| CICinco Iron Works INC | Ontario | — | ◇ UNVERIFIED |
| CEC&J Endeavors, LLC | Rialto | — | ◇ UNVERIFIED |
| CPClark Pacific Dba Pacific Embedded Products | Fontana | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators-dba Cmc Rebar | Etiwanda | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Cable | Fontana | — | ◇ UNVERIFIED |
| CPCNC Powder Coating | Ontario | — | ◇ UNVERIFIED |
| CConexwest | Fontana | — | ◇ UNVERIFIED |
| CRCorporate Resource Services | Ontario | — | ◇ UNVERIFIED |
| CTCrimson Triangle Properties, LLC | Rancho Cucamonga | — | ◇ UNVERIFIED |
| DBDb Building Fasteners INC | Ontario | — | ◇ UNVERIFIED |
| DADeschaine and Roy, INC. | Upland | — | ◇ UNVERIFIED |
| DDevco | Redlands | — | ◇ UNVERIFIED |
| DDieform,LLC | Chino | — | ◇ UNVERIFIED |
| DSDimic Steel Tech, INC. | Upland | — | ◇ UNVERIFIED |
| DMDiversified Mfg Technologies INC. | Chino | — | ◇ UNVERIFIED |
| DUDock USA INC | Chino | — | ◇ UNVERIFIED |
| DCDonna C. Pursell | Rancho Cucamonga | — | ◇ UNVERIFIED |
| DCDoor Components | Fontana | — | ◇ UNVERIFIED |
