| FDFlex-n-gate Detroit | Detroit | 500+ | ◐ LIKELY ACTIVE |
| HDHeavy Duty Radiator LLC | Taylor | — | ▲ REPORTED CLOSED |
| MUMayser USA INC | Belleville | 20–99 | ◐ LIKELY ACTIVE |
| NDNeapco Drivelines - Belleville, MI | Belleville | 500+ | ◐ LIKELY ACTIVE |
| RIRobobuoy INC. | Detroit | — | ◐ LIKELY ACTIVE |
| RPRoush Performance INC | Livonia | — | ◐ LIKELY ACTIVE |
| STSteel Tool & Engineering CO | Brownstown Twp | — | ◐ LIKELY ACTIVE |
| TITram INC | Plymouth | 100–499 | ◐ LIKELY ACTIVE |
| UDU.form Detroit INC | Detroit | 20–99 | ◐ LIKELY ACTIVE |
| VMVinewood Metalcraft CO | Taylor | — | ◐ LIKELY ACTIVE |
| WEWatson Engineering INC | Taylor | — | ◐ LIKELY ACTIVE |
| WCWebasto Convertibles | Plymouth | 100–499 | ◐ LIKELY ACTIVE |
| WRWebasto Roof Systems, INC | Plymouth | 500+ | ◐ LIKELY ACTIVE |
| WAWellington Acquisition LLC Dba Emerging Advanced Products LLC | Belleville | — | ◐ LIKELY ACTIVE |
| FEFaurecia Emissions Control Technologies | Taylor | — | ◐ LIKELY ACTIVE |
| FMFord Motor World Headquarters | Dearborn | — | ◐ LIKELY ACTIVE |
| AAAmerican Axle & Mfg | Detroit | — | ◇ UNVERIFIED |
| AGAsc Gibraltar | Trenton | — | ◇ UNVERIFIED |
| AAwtec | Plymouth | — | ◇ UNVERIFIED |
| CMCanton Manufacturing CORP. | Canton | — | ◇ UNVERIFIED |
| CLChrysler LLC - Detroit Axle | Detroit | — | ◇ UNVERIFIED |
| DCDaimlerchrysler CORP. Mound Rd. Engine Plant | Detroit | — | ◇ UNVERIFIED |
| DIDakkota Integrated Sys-brownst | Brownstown | — | ◇ UNVERIFIED |
| GNGls North America | Romulus | — | ◇ UNVERIFIED |
| GNGns North America Canton | Canton | — | ◇ UNVERIFIED |
| IEIlmor Engineering, INC. | Plymouth | — | ◇ UNVERIFIED |
| JMJohnson Matthey, INC. | Taylor | — | ◇ UNVERIFIED |
| KIKautex INC | Detroit | — | ◇ UNVERIFIED |
| LWL & W Engineering CO Plt #1 | Belleville | — | ◇ UNVERIFIED |
| MCMagna Closures Lighting Division | Plymouth | — | ◇ UNVERIFIED |
| MIMsx Intl Special Vehicles | Detroit | — | ◇ UNVERIFIED |
| NINorplas Industries, INC. | Highland Park | — | ◇ UNVERIFIED |
| PUPeregrine U S INC Livonia Ops | Livonia | — | ◇ UNVERIFIED |
| PSPhillips Service Industries INC | Livonia | — | ◇ UNVERIFIED |
| P2Plant 2 | Belleville | — | ◇ UNVERIFIED |
| RARivian Automotive LLC | Plymouth | — | ◇ UNVERIFIED |
| SESpecialty Engine Components LLC | Taylor | — | ◇ UNVERIFIED |
| TAThe Armored Group LLC | Dearborn Heights | — | ◇ UNVERIFIED |
| TMToyota Motor North America | Plymouth | — | ◇ UNVERIFIED |
| YGYanfeng Global Automotive Interiors-romulus | Romulus | — | ◇ UNVERIFIED |
| ALADIENT LLC Headquarters | Plymouth | 500+ | ◐ LIKELY ACTIVE |
| ATAdvanced Technology Development Center | Detroit | 100–499 | ◐ LIKELY ACTIVE |
| ACAgile Charge LLC | Detroit | — | ◐ LIKELY ACTIVE |
| AAAisin Aftermarket & Service of America Inc. (Cleat) | Plymouth | 1–19 | ◐ LIKELY ACTIVE |
| AAAisin Aftermarket & Service of America Inc. (KSE) | Plymouth | 100–499 | ◐ LIKELY ACTIVE |
| AAAisin Aftermarket & Service of America Inc. (KSW) | Plymouth | 20–99 | ◐ LIKELY ACTIVE |
| AAAmerican Axle World Headquarter | Detroit | 500+ | ◐ LIKELY ACTIVE |
| ABAutokiniton Belleville Plant 2 | Belleville | 100–499 | ◐ LIKELY ACTIVE |
| AOAutokiniton Oakland Stamping | Detroit | 100–499 | ◐ LIKELY ACTIVE |
| AAAutosystems America Inc. | Plymouth | 100–499 | ◐ LIKELY ACTIVE |