| Symbol | Name | Country | Exchange |
|---|---|---|---|
| STN | Stantec Inc | US | NYSE |
| THR | Thermon Group Holdings, Inc. | US | NYSE |
| WAB | Westinghouse Air Brake Technologies Corporation | US | NYSE |
| WCC | WESCO International, Inc. | US | NYSE |
| WLDN | Willdan Group, Inc. | US | NASDAQ |
| WPRT | Westport Innovations Inc | US | NASDAQ |
| WYY | WidePoint Corporation | US | AMEX |