| LMB | Limbach |
| ROAD | Construction Partners |
| GLDD | Great Lakes Dredge & Dock |
| GVA | Granite Construction |
| PRIM | Primoris Services |
| FIX | Comfort Systems USA |
| IESC | IES |
| NVEE | NV5 Global |
| MTRX | Matrix Service |
| STRL | Sterling Infrastructure |
| MYRG | MYR Group |
| BBCP | Concrete Pumping |