| MAM and M Stamping Corp. | Chino | CA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| MGMaplegrove Gluten Free Foods Mfg INC | Chino | CA | Food Manufacturing311823 | — | ◇ UNVERIFIED |
| MTMarcy Tool CO INC | Chino | CA | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| MEMarine Essence Biosciences Corporation of USA | Chino | CA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
 Matrix Machine CORP | Chino | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| MFMelrose Furniture Designs | Chino | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| MMM & M Printed Bag INC | Chino | CA | Printing and Related Support Activities323114 | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials USA LLC | Chino | CA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MAMyers and Sons Hi-way Safety INC | Chino | CA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| MSMyers & Sons Hiway Safety INC. | Chino | CA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| NNNew Nuva LLC | Chino | CA | Textile Mills313310 | — | ◇ UNVERIFIED |
| NTNewport Thin Film Laboratory | Chino | CA | Plastics and Rubber Products Manufacturing326113 | — | ◇ UNVERIFIED |
| NANextgen Aviation Services | Chino | CA | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| OFOc Flavors LLC Dba Mosiac Flavors | Chino | CA | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| OIOmnia Italian Design INC | Chino | CA | Furniture and Related Product Manufacturing337121 | — | ◇ UNVERIFIED |
| ODOpen Door Packaging | Chino | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| PLPacInvest LLC | Chino | CA | Electrical Equipment, Appliance & Component Manufacturing335122 | — | ◇ UNVERIFIED |
| PSPainting & Stripping & Coatings, INC. | Chino | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PTParadise Textile CO | Chino | CA | Textile Mills313310 | — | ◇ UNVERIFIED |
| PWPentair Water Pool and Spa INC | Chino | CA | Plastics and Rubber Products Manufacturing326121 | — | ▲ REPORTED CLOSED |
| PEPioneer Electronic Technical C | Chino | CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| PEPolyrock Equipment Company INC | Chino | CA | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
 Precision Tool & Plastic | Chino | CA | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| PIPremier Industries INC Insul | Chino | CA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| RFRainbow Fiberglass | Chino | CA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| RFRam Fiberglass INC | Chino | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| RMRapid Molded Products, LLC | Chino | CA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| RBR & B Reinforcing Steel CORP. | Chino | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| RMReed Mfg. Co., Limited Partnership | Chino | CA | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
| RIRepet INC | Chino | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| RNResysta North America, INC. | Chino | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| RSRising Star Motorcoach Int'l (usa), INC. | Chino | CA | Transportation Equipment Manufacturing336110 | — | ◇ UNVERIFIED |
| RFRms Finishing, INC. | Chino | CA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| RPRokstad Power | Chino | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| RVRuthless Vapor Corporation | Chino | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SLSchlage Lock Company LLC | Chino | CA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| SESchneider Electric | Chino | CA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| SISchwalm INC. | Chino | CA | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| SHScott's Hyponex CO | Chino | CA | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| SCSilmix Ca | Chino | CA | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| SCSo Cal Tank & Fab | Chino | CA | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| SGSouth Gate Engineering LLC | Chino | CA | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| SCSquare 'd' CO | Chino | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| SUSteelCo U.S.A | Chino | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SSSundance Spas | Chino | CA | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| TET E B, INC. | Chino | CA | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| TITeb INC | Chino | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| TITeefor2, INC | Chino | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| TITgeg INC. | Chino | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| TFThermo Fisher | Chino | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
