| TLThe Lankota Group | Huron | SD | Machinery Manufacturing333111 | 20-99 | ◇ UNVERIFIED |
| CPCentral Plains Industries | Clark | SD | Machinery Manufacturing333111 | 20-99 | ◇ UNVERIFIED |
| KMK-w Manufacturing | Sioux Falls | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| OOverbuilt | Huron | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| ASAlamo Smc | Sioux Falls | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
 Alkota Cleaning Systems INC | Alcester | SD | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| BSBii Salem | Salem | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| FNFormer / No Longer Operating Here Twin City Fan Companies LTD. | Sioux Falls | SD | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| HRHi Roller Conveyors | Sioux Falls | SD | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| HCHub City INC | Aberdeen | SD | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| SESpartan Erv | Brandon | SD | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing Company INC. | Bath | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| SMSunderman Manufacturing Company | Baltic | SD | Machinery Manufacturing333415 | 1-19 | ◇ UNVERIFIED |
| TSTerex South Dakota | Watertown | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| TCTwin City Fan Companies LTD - Brookings Plant | Brookings | SD | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| WEWoods Equipment CO | Sioux Falls | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| CSCommon Sense Manufacturing, Inc. | Faulkton | SD | Machinery Manufacturing333111 | 1-19 | ◇ UNVERIFIED |
| DIDakota International, Inc | Aberdeen | SD | Machinery Manufacturing333411 | 1-19 | ◇ UNVERIFIED |
| HPHigh Performance Engineering Inc. | Sioux Falls | SD | Machinery Manufacturing333511 | 1-19 | ◇ UNVERIFIED |
| LJL J Industries INC | Sioux Falls | SD | Machinery Manufacturing333992 | 1-19 | ◇ UNVERIFIED |
| PPParkston Precision Machinery, LLC | Parkston | SD | Machinery Manufacturing333514 | 1-19 | ◇ UNVERIFIED |
| WSWebster Scale, Inc. | Webster | SD | Machinery Manufacturing333997 | 20-99 | ◇ UNVERIFIED |
| ATAero Trailers LLC | Watertown | SD | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| AMAgile Manufacturing Group, Inc. | Worthing | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| AIAlvord-polk Inc., Property | Lake Preston | SD | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| BIBabl Industries, LLC | Black Hawk | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| ELEasi-pour, LLC | Huron | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| FIFimco Industries | North Sioux City | SD | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| FPFusion Plastics | Lennox | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| GPG&J Properties LLC | Watertown | SD | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| LIL.J. Industries, Inc. | Sioux Falls | SD | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| MWMacksteel Warehouse, INC. | Watertown | SD | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass /south Dakota | Aberdeen | SD | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| MMMyer-hall Machine Works INC | Canton | SD | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| TCTerex Corporation | Canton | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| TCTwin City Fan Companies, LTD | Elkton | SD | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| VWVirg's Welding & Repair | Sioux Falls | SD | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
