| AMRC | Ameresco |
| APG | APi Group |
| BLD | TopBuild |
| DY | Dycom Industries |
| EME | EMCOR Group |
| FIX | Comfort Systems USA |
| GLDD | Great Lakes Dredge & Dock |
| GVA | Granite Construction |
| KBR | KBR |
| MTRX | Matrix Service Company |
| MYRG | MYR Group |
| PRIM | Primoris Services |
| ROAD | Construction Partners |