| MLMetform LLC / Machined Components | Mount Carroll | IL | Transportation Equipment Manufacturing336350 | 20-99 | ◐ LIKELY ACTIVE |
| MLMetform LLC / Machined Components 1 | Savanna | IL | Transportation Equipment Manufacturing336350 | 100-499 | ◐ LIKELY ACTIVE |
| MIMike's, Inc. | South Roxana | IL | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| MTMilitary Truck Works LLC | Mundelein | IL | Transportation Equipment Manufacturing336110 | — | ◐ LIKELY ACTIVE |
| MPMpc Products Corporation | Niles | IL | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| MMMrdc Minooka, Rdc | Minooka | IL | Transportation Equipment Manufacturing336111 | 20-99 | ◐ LIKELY ACTIVE |
| MJMTE Joliet | Joliet | IL | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| NCNal Corporate Headquarters | Paris | IL | Transportation Equipment Manufacturing336320 | 100-499 | ◐ LIKELY ACTIVE |
| NINal Illinois Equipment Plant | Flora | IL | Transportation Equipment Manufacturing336320 | 20-99 | ◐ LIKELY ACTIVE |
| NMNal Mattoon Service Plant | Mattoon | IL | Transportation Equipment Manufacturing336320 | 20-99 | ◐ LIKELY ACTIVE |
| NPNal Paris Plant | Paris | IL | Transportation Equipment Manufacturing336320 | 500+ | ◐ LIKELY ACTIVE |
| NSNal Salem Plant | Salem | IL | Transportation Equipment Manufacturing336320 | 500+ | ◐ LIKELY ACTIVE |
| NINascote Industries - Mockingbird 3 | Nashville | IL | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| NINascote Industries - Mockingbird Road | Nashville | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| NMNascote - Mockingbird Road 2 | Nashville | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| NMNidec Mobility of America Corporation | Saint Charles | IL | Transportation Equipment Manufacturing336320 | 100-499 | ◐ LIKELY ACTIVE |
| NMNRE Mt. Vernon | Mount Vernon | IL | Transportation Equipment Manufacturing336510 | 20-99 | ◐ LIKELY ACTIVE |
| NSNRE Silvis | Silvis | IL | Transportation Equipment Manufacturing336510 | 1-19 | ◐ LIKELY ACTIVE |
| ONOakley - Normal | Normal | IL | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| PPeoria | Peoria | IL | Transportation Equipment Manufacturing336212 | 20-99 | ◐ LIKELY ACTIVE |
| PDPrecision Dynamics LCC | Machesney Park | IL | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
Progress Rail Locomotive INC. | Mc Cook | IL | Transportation Equipment Manufacturing336510 | — | ◐ LIKELY ACTIVE |
| PAPursuit Aerospace | Morton | IL | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| QRQ.t. Rents, L.l.c. | Rockdale | IL | Transportation Equipment Manufacturing336211 | — | ◐ LIKELY ACTIVE |
| QTQualiseal Technology a Technetics Group Company | Harwood Heights | IL | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| RTRail Tech Leasing & Manufacturing | University Park | IL | Transportation Equipment Manufacturing336510 | 20-99 | ◐ LIKELY ACTIVE |
| SSSchaumburg Specialties | Schaumburg | IL | Transportation Equipment Manufacturing336999 | 20-99 | ◐ LIKELY ACTIVE |
| SSSia Schaumburg, Il-aftersales | Schaumburg | IL | Transportation Equipment Manufacturing336111 | 20-99 | ◐ LIKELY ACTIVE |
| SLSkywall LLC | Oak Brook | IL | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| SCSRAM - Chicago HQ | Chicago | IL | Transportation Equipment Manufacturing336991 | 100-499 | ◐ LIKELY ACTIVE |
| STStandfast Tram LLC | Chicago | IL | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| SFStok Federal Services, LLC | Marion | IL | Transportation Equipment Manufacturing336110 | — | ◐ LIKELY ACTIVE |
| TVThales Visionix, Inc. | Aurora | IL | Transportation Equipment Manufacturing336413 | 20-99 | ◐ LIKELY ACTIVE |
| TBThe Boeing Company | Mascoutah | IL | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| TBToyota Boshoku Illinois LLC | Lawrenceville | IL | Transportation Equipment Manufacturing336360 | 500+ | ◐ LIKELY ACTIVE |
| TUToyo USA Manufacturing INC | Bloomington | IL | Transportation Equipment Manufacturing336350 | 20-99 | ◐ LIKELY ACTIVE |
| TBTransmissions Building KK | East Peoria | IL | Transportation Equipment Manufacturing336350 | 500+ | ◐ LIKELY ACTIVE |
| TNTrm Nre Acquisition LLC | Mount Vernon | IL | Transportation Equipment Manufacturing336510 | — | ◐ LIKELY ACTIVE |
| UPUniversity Park IC | University Park | IL | Transportation Equipment Manufacturing336212 | 100-499 | ◐ LIKELY ACTIVE |
| WDWeathertech Direct, LLC | Bolingbrook | IL | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| WMWoodward - MPW | Machesney Park | IL | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| WRWoodward - RCC | Loves Park | IL | Transportation Equipment Manufacturing336412 | 500+ | ◐ LIKELY ACTIVE |
| ZZf | Marshall | IL | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| AIAventus Industries LLC | Homewood | IL | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| UTUSA Technologies, INC. | Peoria | IL | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| 2D2680 Diehl LLC | Aurora | IL | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| 2S2KTC Services Ltd. | Fox Lake | IL | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| 3W3220 West Ogden, LLC | Chicago | IL | Transportation Equipment Manufacturing336340 | — | ◇ UNVERIFIED |
| AUAdient US LLC | Sycamore | IL | Transportation Equipment Manufacturing336360 | — | ◇ UNVERIFIED |
| AMAdvanced Mobility By Kentucky Trailer | University Park | IL | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |