| JSJamac Steel, INC | Ontario | — | ◇ UNVERIFIED |
| JIJayco Industries | Apple Valley | — | ◇ UNVERIFIED |
| JBJ Badeau Machine INC Dba Jm Machine | Upland | — | ◇ UNVERIFIED |
| JSJc Supply & Mfg INC | Ontario | — | ◇ UNVERIFIED |
| JSJesus Santana | Fontana | — | ◇ UNVERIFIED |
| JSJnl Spring Mfg., INC. | Ontario | — | ◇ UNVERIFIED |
| JLJohn L Conley INC Dba Conley's Manufacturing & Sales | Montclair | — | ◇ UNVERIFIED |
| JPJohn Perry | Montclair | — | ◇ UNVERIFIED |
| JSJohn Sandoval Business Services | Montclair | — | ◇ UNVERIFIED |
| JBJon Bouch | Ontario | — | ◇ UNVERIFIED |
| JAJosh and Carrie Salazar Dba Cj Manufacturing | Hesperia | — | ◇ UNVERIFIED |
| JVJpjw Ventures LLC Dba Pirtek Inland Valley | Ontario | — | ◇ UNVERIFIED |
| JIJun Iron Works | San Bernardino | — | ◇ UNVERIFIED |
| KTKcb Towers INC | Highland | — | ◇ UNVERIFIED |
| KEKemper Enterprises INC | Chino | — | ◇ UNVERIFIED |
| KGKevin Gonzalez Investment Group LLC | Hesperia | — | ◇ UNVERIFIED |
| KDK-lath Div of Tree Island Wire (usa) INC | Fontana | — | ◇ UNVERIFIED |
| LTLeitz Tooling Systems LP | San Bernardino | — | ◇ UNVERIFIED |
| LPLemco Precision INC. | Upland | — | ◇ UNVERIFIED |
| LSLeroys Shoes and Clothing Co., INC #1 | Running Springs | — | ◇ UNVERIFIED |
| LWLithonia/hi-tek Western Operat | Rancho Cucamonga | — | ◇ UNVERIFIED |
| LILoran INC | Redlands | — | ◇ UNVERIFIED |
| LLLotz Leasing, LLC | Chino | — | ◇ UNVERIFIED |
| LILuster-cote INC | Fontana | — | ◇ UNVERIFIED |
| MMMachinery Manufacturer LLC | San Bernardino | — | ◇ UNVERIFIED |
 Mac Industries | Fontana | — | ◇ UNVERIFIED |
| MIMag Instrument INC | Ontario | — | ◇ UNVERIFIED |
| MMMansfield Metal Solutions LLC | Ontario | — | ◇ UNVERIFIED |
| MEMape Engineering INC. | Colton | — | ◇ UNVERIFIED |
| MTMarcy Tool CO INC | Chino | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC Dba Mcelroy Metal | Adelanto | — | ◇ UNVERIFIED |
| MGMcgarec Gear Machine INC | Ontario | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Manufacturing | Colton | — | ◇ UNVERIFIED |
| MPMcwelco Products, INC | Hesperia | — | ◇ UNVERIFIED |
| MBMelvin Baltodano | Ontario | — | ◇ UNVERIFIED |
| MWMelvin Wrought Iron & Ornamental | Ontario | — | ◇ UNVERIFIED |
| MCMetal Coaters California | Rancho Cucamonga | — | ◇ UNVERIFIED |
| MDMike Dyell Machine Shop & Hydraulics, in | Rialto | — | ◇ UNVERIFIED |
| MMMill Man Steel INC | Fontana | — | ◇ UNVERIFIED |
| MJM J B Chrome Plating & Polishing | Rialto | — | ◇ UNVERIFIED |
| MMMobile Mini | Rialto | — | ◇ UNVERIFIED |
| MMMobile Mini Storage Systems | Rialto | — | ◇ UNVERIFIED |
| MEM&r Engineering CO Dba S&h Glenco Manufacturing | Ontario | — | ◇ UNVERIFIED |
| MSMuhlhauser Steel INC | Bloomington | — | ◇ UNVERIFIED |
| MGMwc Group INC | Adelanto | — | ◇ UNVERIFIED |
| NCNalco Company | Ontario | — | ◇ UNVERIFIED |
| NMNational Metal Fabrication INC | Ontario | — | ◇ UNVERIFIED |
| NGNci Group Inc., Dba, Metal Coaters of Ca | Rancho Cucamonga | — | ◇ UNVERIFIED |
| NTNewport Thin Film Laboratory | Chino | — | ◇ UNVERIFIED |
| NLNext Level Powder Coating | Yucca Valley | — | ◇ UNVERIFIED |
