| Symbol | Name | Country | Exchange |
|---|---|---|---|
| CECO | CECO Environmental Corp. | US | NASDAQ |
| DOV | Dover Corporation | US | NYSE |
| HWM | Howmet Aerospace Inc. | US | NYSE |
| RELL | Richardson Electronics, Ltd. | US | NASDAQ |
| SPXC | SPX Corporation | US | NYSE |
| TEL | TE Connectivity | US | NYSE |
| THR | Thermon Group Holdings, Inc. | US | NYSE |
| IAALF | Ibc Advanced Alloys | US | OTC |
| SPXSF | Spirax-Sarco Engineering plc | US | OTC |
| SPXSY | Spirax-Sarco Engineering Plc ADR | US | OTC |
| SPX | Spirax-Sarco Engineering Plc | UK | LSE |
| 1LNB | Spirax-Sarco Engineering PLC | DE | F |
| 48Z | Howmet Aerospace Inc | DE | F |