| Symbol | Name | Location |
|---|---|---|
| MTRN | MATERION Corp | Mayfield Hts., Ohio |
| Park Ohio Industries Inc/Oh | Cleveland, Ohio | |
| PKOH | Park Ohio Holdings Corp | Cleveland, Ohio |
| TRS | Trimas Corp | Bloomfield Hills, Michigan |
| MEC | Mayville Engineering Company, Inc. | Mayville, Wisconsin |