| KCKohler Company Hattiesburg Engine Plant2 | Hattiesburg | MS | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| LSLand Shaper Inc, Main Facility | Gulfport | MS | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| LELott Enterprise, INC. | Greenwood | MS | Machinery Manufacturing333411 | — | ◇ UNVERIFIED |
| MTMagnolia Tool & Manufacturing Company, INC. | Ridgeland | MS | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| MMasterbilt/standex | New Albany | MS | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| MMMaury Manufacturing | Holly Springs | MS | Machinery Manufacturing333516 | — | ◇ UNVERIFIED |
| MCMetaris CORP. | Forest | MS | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| MMMetso Minerals Industries (former) | Clarksdale | MS | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| NINanocor INC | Aberdeen | MS | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| PMPhiladelphia - Mississippi | Philadelphia | MS | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
 Power Dynamics Innovations, LLC. | Stennis Space Center | MS | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RORomar Offshore Welding Services* | Moss Point | MS | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| SCSanderford Custom Furniture | Collins | MS | Machinery Manufacturing333243 | — | ◇ UNVERIFIED |
| SCSanderford Custom Furniture | Collins | MS | Machinery Manufacturing333243 | — | ◇ UNVERIFIED |
| SCScrew Conveyor Corporation | Winona | MS | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| SISly INC. | Mathiston | MS | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| TSTri State Ready Mix | Olive Branch | MS | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| TMTupelo Mtd Consumer Group INC | Verona | MS | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| WIWebster Industries, INC | Meridian | MS | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| WIWood Industries INC. | Belmont | MS | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
