| JMJAC Manufacturing Napoleon | Napoleon | OH | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| JTJAE Tech, Inc. | Apple Creek | OH | Transportation Equipment Manufacturing336350 | 20-99 | ◐ LIKELY ACTIVE |
| KLKD Lamp | Andover | OH | Transportation Equipment Manufacturing336112 | 20-99 | ◐ LIKELY ACTIVE |
| KAKirchhoff Automotive | Waverly | OH | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| KCKks Contracting LLC | Ashland | OH | Transportation Equipment Manufacturing336212 | — | ◐ LIKELY ACTIVE |
| KTKnapheide Truck Equipment Company | Cincinnati | OH | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| KTKnapheide Truck Equipment Company Columbus | Columbus | OH | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| LWLeffel Works | Springfield | OH | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| LCLORD Corporation - Dayton | Dayton | OH | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| MSMagna Seating Columbus | Lancaster | OH | Transportation Equipment Manufacturing336360 | 500+ | ◐ LIKELY ACTIVE |
| MBMahle Behr Dayton | 1600 Webster Street Dayton, Ohio | OH | Transportation Equipment Manufacturing336390 | 500+ | ◐ LIKELY ACTIVE |
| MTManufacturing & Technical Support Services LLC | Beavercreek | OH | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| MNMarelli North America, Inc. | Bowling Green | OH | Transportation Equipment Manufacturing336360 | 20-99 | ◐ LIKELY ACTIVE |
| MWMartin Wheel | Tallmadge | OH | Transportation Equipment Manufacturing336999 | 20-99 | ◐ LIKELY ACTIVE |
| MIMaval Industries | Twinsburg | OH | Transportation Equipment Manufacturing336330 | 100-499 | ◐ LIKELY ACTIVE |
| MWMaval Warehouse | Maple Heights | OH | Transportation Equipment Manufacturing336330 | 1-19 | ◐ LIKELY ACTIVE |
| MRMiddletown Recycling | Middletown | OH | Transportation Equipment Manufacturing336510 | 1-19 | ◐ LIKELY ACTIVE |
| MYMotherson Yachiyo US Automotive Systems, Inc | Marion | OH | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| NTNewark Trucking | Newark | OH | Transportation Equipment Manufacturing336999 | 1-19 | ◐ LIKELY ACTIVE |
| NNgas-oh12 | Kettering | OH | Transportation Equipment Manufacturing336413 | 20-99 | ◐ LIKELY ACTIVE |
| NINorplas Industries (Magna T.E.A.M. Systems) | Toledo | OH | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| OTOakley - Toledo | Northwood | OH | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| OTOhashi Technica USA Manufacturing Inc | Sunbury | OH | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| OAOhio Assembly | Avon Lake | OH | Transportation Equipment Manufacturing336211 | 500+ | ◐ LIKELY ACTIVE |
| OOOhio Office | Columbus | OH | Transportation Equipment Manufacturing336320 | 20-99 | ◐ LIKELY ACTIVE |
| OPOhio Precision Products LLC | Toledo | OH | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| PCParker-hannifin Corporation | Mentor | OH | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| PTPAS Technologies Inc. dba StandardAero | Hillsboro | OH | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| PTPegasus Trailers INC. | Sandusky | OH | Transportation Equipment Manufacturing336212 | — | ▲ REPORTED CLOSED |
| PMPJ Mt Orab | Mount Orab | OH | Transportation Equipment Manufacturing336212 | 100-499 | ◐ LIKELY ACTIVE |
| PMPJ Mt Orab | Mt Orab | OH | Transportation Equipment Manufacturing336212 | 100-499 | ◐ LIKELY ACTIVE |
| P1Plant 1 | Wellington | OH | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| P2Plant 2/4 | Wellington | OH | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| P3Plant 3 | Wellington | OH | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| P5Plant 5,6,7,9 | Wellington | OH | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| PAPmag & Associates, LLC | Dayton | OH | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| PMProfessional Marine and Industrial Staff Services LLC | Ashtabula | OH | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| RLRadar Love Company | Findlay | OH | Transportation Equipment Manufacturing336360 | 20-99 | ◐ LIKELY ACTIVE |
| REReberland Equipment, INC. | Apple Creek | OH | Transportation Equipment Manufacturing336110 | — | ▲ REPORTED CLOSED |
| RTRocketforce Technologies LLC | Mason | OH | Transportation Equipment Manufacturing336415 | — | ◐ LIKELY ACTIVE |
| RRRoll Rite Louisville | Louisville | OH | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| RLRoshel LLC | Springfield | OH | Transportation Equipment Manufacturing336992 | — | ◐ LIKELY ACTIVE |
SAF-HOLLAND, Inc - Cincinnati | Fairfield | OH | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| SSanoh-America | Sanoh America 7905 Industrial Park Dr, Mt. Vernon | OH | Transportation Equipment Manufacturing336340 | 100-499 | ◐ LIKELY ACTIVE |
| SRSA Rail, LLC | Maumee | OH | Transportation Equipment Manufacturing336510 | 1-19 | ◐ LIKELY ACTIVE |
| SAScarlet Aerospace Technologies LTD. | Fairborn | OH | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| SAServices ACSC OH | Springdale | OH | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| SSServices STAC Cincinnati | Springdale | OH | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| SISetex Inc | St Marys | OH | Transportation Equipment Manufacturing336330 | 100-499 | ◐ LIKELY ACTIVE |
| SISetex Inc | Saint Marys | OH | Transportation Equipment Manufacturing336330 | 100-499 | ◐ LIKELY ACTIVE |