| ABAaron Beaver Farms | Walnut Grove | CA | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| ARAlta Ready Mix INC | Walnut Grove | CA | Transportation Equipment Manufacturing336510 | — | ◇ UNVERIFIED |
| AHArmstrong Hardwood Flooring Company | Walnut Grove | KY | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| BTBranch Tool INC | Walnut Grove | KY | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
 Chism Machine and Gage INC | Walnut Grove | KY | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CRContinental Refining Company LLC | Walnut Grove | KY | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| COCounty of Sacramento | Walnut Grove | CA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| CPCrop Production Services | Walnut Grove | CA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| DPDk Powder Coating | Walnut Grove | MO | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DEDuraflame East LLC | Walnut Grove | KY | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| KCKapstone Container Corporation | Walnut Grove | KY | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| MEMark Esperson Farms | Walnut Grove | CA | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| MLMenzner Lumber and Supply Company | Walnut Grove | KY | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| NANutrien Ag Solutions INC | Walnut Grove | CA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| PMPlay Mart INC | Walnut Grove | KY | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| RORamos Oil Company | Walnut Grove | CA | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
| UIUgn INC | Walnut Grove | KY | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| WAWilcox Agri-products | Walnut Grove | CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| WBWilcox Brothers INC | Walnut Grove | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
