 American Ramp Company | Joplin | 100–499 | ● ACTIVE |
 O & F Machine Products Company | Joplin | 20–99 | ● ACTIVE |
 Thermal Engineering International USA INC | Joplin | 100–499 | ● ACTIVE |
 Banks Engineering & Machine LLC | Webb City | — | ● ACTIVE |
 C.n.c. Machine Products, INC | Joplin | — | ● ACTIVE |
 Leggett & Platt, Incorporated | Carthage | 20–99 | ● ACTIVE |
| MTMapp Technologies, L.l.c. | Joplin | 100–499 | ● ACTIVE |
 Midwest Tool, INC. | Joplin | — | ● ACTIVE |
 Precision Holdings, LLC | Webb City | — | ● ACTIVE |
 Dynamix Manufacturing LLC | Joplin | — | ● ACTIVE |
 Modine Manufacturing Company Joplin | Joplin | 100–499 | ◐ LIKELY ACTIVE |
| MMMitchell Mill Systems | Joplin | 20–99 | ◐ LIKELY ACTIVE |
| GPGrace Precision Products | Webb City | 20–99 | ◐ LIKELY ACTIVE |
| CMCnc Machine Products, INC. | Webb City | — | ◇ UNVERIFIED |
| MTMapp Technologies, L.l.c. | Joplin | — | ◇ UNVERIFIED |
| MPMid-america Precision Products LLC | Joplin | — | ◇ UNVERIFIED |
| SBStar Brite Plating-joplin | Joplin | — | ◇ UNVERIFIED |
| DSDigger Specialties Inc | Carthage | 100–499 | ◐ LIKELY ACTIVE |
| DSDoing Steel Fabrication - Joplin | Joplin | 20–99 | ◐ LIKELY ACTIVE |
| SHSchubemo Holdings, INC. | Joplin | — | ◐ LIKELY ACTIVE |
| AMAble Manufacturing & Assembly LLC | Joplin | — | ◇ UNVERIFIED |
| BEBeta Engineering, INC | Sarcoxie | — | ◇ UNVERIFIED |
| CLC L Machine, LLC | Joplin | — | ◇ UNVERIFIED |
| CMContract Machining & Manufacturing INC | Joplin | — | ◇ UNVERIFIED |
| DMDon's Machine Shop INC | Joplin | — | ◇ UNVERIFIED |
| DMDynamix Manufacturing LLC | Joplin | — | ◇ UNVERIFIED |
| FMFasco Machine Works | Joplin | — | ◇ UNVERIFIED |
| FMFasken Machining & Welding | Carthage | — | ◇ UNVERIFIED |
| GMGateway Machine LLC | Webb City | — | ◇ UNVERIFIED |
| Leggett & Platt | Carthage | — | ◇ UNVERIFIED |
| Leggett & Platt INC | Carthage | — | ◇ UNVERIFIED |
| MTMetal Tech Midwest Incorporated | Joplin | — | ◇ UNVERIFIED |
| PMParkside Machine & Fabrication | Carthage | — | ◇ UNVERIFIED |
