| GEGe Engine Services | Ontario | CA | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| GWGreat Western Eagle Packaging Corporation | Ontario | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| HCHhs Construction LLC | Ontario | CA | Transportation Equipment Manufacturing336510 | — | ◇ UNVERIFIED |
| HMHino Motors Manufacturing U.s.a., INC. | Ontario | CA | Fabricated Metal Product Manufacturing332111 | — | ▲ REPORTED CLOSED |
Jensen Enterprises INC Dba Jensen Precast | Ontario | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JIJlmc INC | Ontario | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| KAKetan Automated Equipment INC | Ontario | CA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| KIKorden INC | Ontario | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| LALockheed Aeronautical Systems CO Ontario | Ontario | CA | Transportation Equipment Manufacturing336000 | — | ◇ UNVERIFIED |
| MMMarlee Manufacturing INC | Ontario | CA | Electrical Equipment, Appliance & Component Manufacturing335222 | — | ◇ UNVERIFIED |
| NBNiagara Bottling LLC | Ontario | CA | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
| NBNiagara Bottling LLC Philadelphia | Ontario | CA | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
| OIOakwood Interiors | Ontario | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| OBOrepac Building Products | Ontario | CA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| PIParco INC | Ontario | CA | Plastics and Rubber Products Manufacturing326291 | — | ◇ UNVERIFIED |
| PFPassprto Foods (svc) LLC | Ontario | CA | Food Manufacturing311412 | — | ◇ UNVERIFIED |
| PAPerformance Aluminum Prod | Ontario | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| RFRama Food Cedar | Ontario | CA | Food Manufacturing311823 | — | ◇ UNVERIFIED |
| SSSensation Spas, INC (diamante Spas) | Ontario | CA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| SNSignify North America Corporation | Ontario | CA | Electrical Equipment, Appliance & Component Manufacturing335122 | — | ◇ UNVERIFIED |
| SWSt Worth Container | Ontario | CA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| SGSunyeah Group Corporation | Ontario | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| URUpm Raflatac INC | Ontario | CA | Paper Manufacturing322222 | — | ◇ UNVERIFIED |
| USUS Shutters & Blinds | Ontario | CA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| VFVentura Foods, LLC - Ontario Division | Ontario | CA | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| WEWallner Expac INC | Ontario | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| 2A2009 Anytrek | Ontario | CA | Computer and Electronic Product Manufacturing334220 | 20-99 | ◐ LIKELY ACTIVE |
| APAxium Packaging : Ontario | Ontario | CA | Plastics and Rubber Products Manufacturing326160 | 20-99 | ◐ LIKELY ACTIVE |
| BSBray Sales California | Ontario | CA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| CBCalifornia Branch | Ontario | CA | Machinery Manufacturing333991 | 1-19 | ◐ LIKELY ACTIVE |
| CIChunwei Inc. | Ontario | CA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| CPCoastal Pacific Food Distributors | Ontario | CA | — | — | ◐ LIKELY ACTIVE |
| CCCollins Company | Ontario | CA | Textile Mills313310 | 20-99 | ◐ LIKELY ACTIVE |
| CCorporate | Ontario | CA | Food Manufacturing311412 | 100-499 | ◐ LIKELY ACTIVE |
| CPCorrugated Packaging Ontario S | Ontario | CA | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| CUCox, USA | Ontario | CA | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |
| DDsm | Ontario | CA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| FGFRUIT GROWERS SUPPLY - Ontario - Carton Plant | Ontario | CA | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| GDGh Dairy | Ontario | CA | Food Manufacturing311511 | — | ◐ LIKELY ACTIVE |
| HTHongsheng Trading INC | Ontario | CA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◐ LIKELY ACTIVE |
| KOKamps Ontario | Ontario | CA | Wood Product Manufacturing321920 | 1-19 | ◐ LIKELY ACTIVE |
| KRKMC Rubber Ontario | Ontario | CA | Plastics and Rubber Products Manufacturing326299 | 20-99 | ◐ LIKELY ACTIVE |
| LPLassonde Pappas Ontario | Ontario | CA | Food Manufacturing311421 | 20-99 | ◐ LIKELY ACTIVE |
| LCLeft Coast Brewing Co. Tasting Room Smokehouse Distillery | Ontario | CA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| LILMI, Inc.-Ontario | Ontario | CA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| MOMactac Ontario | Ontario | CA | Paper Manufacturing322220 | 20-99 | ◐ LIKELY ACTIVE |
| MIMedbreak INC | Ontario | CA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| MWMelvin Wrought Iron Inc - Main Shop | Ontario | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MSMontalvan's Sales | Ontario | CA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| NONa2 Ontario Tech Training Center | Ontario | CA | Transportation Equipment Manufacturing336111 | 20-99 | ◐ LIKELY ACTIVE |