Skylift INC | Lorain | OH | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| SSolon | Solon | OH | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| SDSolon Distribution Center | Solon | OH | Machinery Manufacturing333414 | 1-19 | ◐ LIKELY ACTIVE |
| SISpecialized Inspection Group | Pettisville | OH | Machinery Manufacturing333511 | 1-19 | ◐ LIKELY ACTIVE |
| SFSpringfield Factory KHA | Springfield | OH | Machinery Manufacturing333923 | 100-499 | ◐ LIKELY ACTIVE |
| SHSpringfield HQ HQ2 | Springfield | OH | Machinery Manufacturing333923 | 100-499 | ◐ LIKELY ACTIVE |
| SPSpringfield POD HQ3 | Springfield | OH | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| STSPX Technologies | Mason | OH | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| SLSsccs, LLC | Waterville | OH | Machinery Manufacturing333413 | — | ▲ REPORTED CLOSED |
| SBStelter & Brinck, LTD | Harrison | OH | Machinery Manufacturing333994 | 20-99 | ◐ LIKELY ACTIVE |
| SPSterling Process Equipment & Services, Inc. | Columbus | OH | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| SGStewart Glapat Corporation | Zanesville | OH | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| SMStolle Machinery - Canton | Canton | OH | Machinery Manufacturing333517 | 100-499 | ◐ LIKELY ACTIVE |
| SMStolle Machinery - Dayton | Dayton | OH | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| SMStolle Machinery - Sidney | Sidney | OH | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| SOSukup Ohio Distribution Center | Defiance | OH | Machinery Manufacturing333111 | 1-19 | ◐ LIKELY ACTIVE |
| SSSummit Sales & Equipment, INC | Wooster | OH | Machinery Manufacturing333132 | 1-19 | ◐ LIKELY ACTIVE |
| SISuperion Inc | Xeina | OH | Machinery Manufacturing333515 | 1-19 | ◐ LIKELY ACTIVE |
| SOSwagelok OSM | Solon | OH | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| SMSweet Manufacturing Company | Springfield | OH | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| TITark, Inc. - Dayton | Miamisburg | OH | Machinery Manufacturing333996 | 20-99 | ◐ LIKELY ACTIVE |
| TST.C. Service Co. | Willoughby | OH | Machinery Manufacturing333991 | 20-99 | ◐ LIKELY ACTIVE |
| TUTeikoku USA Inc. - Ohio | Marietta | OH | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| TBThe Bonnot Company | Akron | OH | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| TCThe Capital Tool Company | Cleveland | OH | Machinery Manufacturing333514 | 1-19 | ◐ LIKELY ACTIVE |
| TLThe Lincoln Electric Company - Euclid | Euclid | OH | Machinery Manufacturing333992 | 500+ | ◐ LIKELY ACTIVE |
| TLThe Lincoln Electric Company - Orrville | Orrville | OH | Machinery Manufacturing333992 | 20-99 | ◐ LIKELY ACTIVE |
| TWThe W.w. Williams Company, LLC | Akron | OH | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| TATiffin - A608 | Tiffin | OH | Machinery Manufacturing333243 | 100-499 | ◐ LIKELY ACTIVE |
Tilmor LLC | Dalton | OH | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| TTTimberline Tractor & Marine INC | Canton | OH | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| TITJF, Inc. dba Thermeq Co. | Waterville | OH | Machinery Manufacturing333994 | 1-19 | ◐ LIKELY ACTIVE |
| TCTranscon Conveyor, LLC | Mentor | OH | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| TITransdigm INC | Painesville | OH | Machinery Manufacturing333996 | — | ◐ LIKELY ACTIVE |
| TPTroy Precision Carbide Die INC | Burton | OH | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| TITrucast, Inc. | Willoughby | OH | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| TITruCut Incororated - Salem MA1 | Salem | OH | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TITruCut Incorporated - Salem MA2 | Salem | OH | Machinery Manufacturing333415 | 1-19 | ◐ LIKELY ACTIVE |
| UCUniloy Century, LLC | Fremont | OH | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
Universal Plastics-Sajar Molding | Middlefield | OH | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| UMUnverferth Manufacturing- Delphos Division | Delphos | OH | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| UMUnverferth Manufacturing- Kalida Division | Kalida | OH | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| UPUS Positronix INC. | Oberlin | OH | Machinery Manufacturing333998 | — | ◐ LIKELY ACTIVE |
| UTUS Tool Group- OC West Chester | West Chester | OH | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| UTUS Tool Group-Troy UTC | Troy | OH | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| VCValco Cincinnati Inc. | Cincinnati | OH | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| VMValco - main Plant | Coldwater | OH | Machinery Manufacturing333111 | 20-99 | ◐ LIKELY ACTIVE |
| VVValco - Vine Street | Coldwater | OH | Machinery Manufacturing333111 | 1-19 | ◐ LIKELY ACTIVE |
| VEVanmark Equipment, LLC | Columbus | OH | Machinery Manufacturing333241 | — | ◐ LIKELY ACTIVE |
| VBVelocity Byesville | Byesville | OH | Machinery Manufacturing333519 | 20-99 | ◐ LIKELY ACTIVE |