- Oil and gas pipeline construction (2)
- Communication line and transmission tower construction (3)
- Cable television line construction (2)
- Telephone and communication line construction (3)
- Water and sewer line construction (3)
- Sewer line construction (12)
- Water main construction (1)
- Electric power line construction (3)
- Pipeline construction, nsk (2)
- Pumping station construction (2)
- Underground utilities contractor (16)
