Gelfire Systems, LLC | Ontario | Miscellaneous Manufacturing | 339999 | — | ● ACTIVE |
| HSHendricks Sewing Company | Vale | Apparel Manufacturing | 315990 | — | ● ACTIVE |
Nyssa Machine and Welding, INC | Nyssa | Fabricated Metal Product Manufacturing | 332710 | — | ● ACTIVE |
| SSimplot | Ontario | Food Manufacturing | 311411 | — | ◐ LIKELY ACTIVE |
| TAThe Amalgamated Sugar Company | Nyssa | Food Manufacturing | 311312 | 100–499 | ◐ LIKELY ACTIVE |
Fox Worx Precision LLC | Ontario | Miscellaneous Manufacturing | 339999 | — | ◐ LIKELY ACTIVE |
| FFFry Foods | Ontario | Food Manufacturing | 311212 | — | ◐ LIKELY ACTIVE |
| TOTop Onions USA INC | Ontario | Food Manufacturing | 311225 | 20–99 | ◐ LIKELY ACTIVE |
| BBBig Bend Botanicals, LLC | Adrian | Food Manufacturing | 311411 | — | ◐ LIKELY ACTIVE |
| GPGF Plant - Ontario | Ontario | Food Manufacturing | 311411 | 500+ | ◐ LIKELY ACTIVE |
| SHSage Hill Farm | Ontario | Beverage and Tobacco Product Manufacturing | 312130 | — | ◐ LIKELY ACTIVE |
| MMMartin Manufacturing INC | Adrian | Machinery Manufacturing | 333111 | — | ◇ UNVERIFIED |
| BVBeer Valley Brewing Company, LLC | Ontario | Beverage and Tobacco Product Manufacturing | 312120 | — | ◇ UNVERIFIED |
| BBBoston Beef House INC | Ontario | Food Manufacturing | 311611 | — | ◇ UNVERIFIED |
| CCClearwater Concrete INC | Ontario | Nonmetallic Mineral Product Manufacturing | 327320 | — | ◇ UNVERIFIED |
| CBColeman Brothers Distillation LLC | Ontario | Food Manufacturing | 311942 | — | ◇ UNVERIFIED |
| FFFff Farms INC | Nyssa | Food Manufacturing | 311991 | — | ◇ UNVERIFIED |
| FSFords Service Center INC | Ontario | Beverage and Tobacco Product Manufacturing | 312113 | — | ◇ UNVERIFIED |
| HMHawley Meat Pack LLC | Vale | Food Manufacturing | 311611 | — | ◇ UNVERIFIED |
| HJH J Heinz CO LP | Ontario | Food Manufacturing | 311411 | — | ◇ UNVERIFIED |
| IVIndustrial Ventilation INC | Ontario | Machinery Manufacturing | 333415 | — | ◇ UNVERIFIED |
| IIIronhead INC | Vale | Fabricated Metal Product Manufacturing | 332312 | — | ◇ UNVERIFIED |
| JLJaecie Lopez | Ontario | Fabricated Metal Product Manufacturing | 332323 | — | ◇ UNVERIFIED |
| KFKesler Farms | Nyssa | Food Manufacturing | 311920 | — | ◇ UNVERIFIED |
| OAOntario Airport | Ontario | Machinery Manufacturing | 333911 | — | ◇ UNVERIFIED |
| OROzawa R & D INC | Ontario | Machinery Manufacturing | 333911 | — | ◇ UNVERIFIED |
| RSReyco Systems INC | Ontario | Machinery Manufacturing | 333294 | — | ◇ UNVERIFIED |
| TVTreasure Valley Grain LLC | Nyssa | Food Manufacturing | 311119 | — | ◇ UNVERIFIED |
| TVTreasure Valley Steel INC | Ontario | Fabricated Metal Product Manufacturing | 332322 | — | ◇ UNVERIFIED |
| TVTreasure Valley Steel INC | Ontario | Fabricated Metal Product Manufacturing | 332322 | — | ◇ UNVERIFIED |
| VPValley Paving & Asphalt, INC. | Ontario | Petroleum and Coal Products Manufacturing | 324121 | — | ◇ UNVERIFIED |