- Dams, waterways, docks, and other marine construction (14)
- Dam construction (3)
- Dock construction (4)
- Drainage system construction (2)
- Dredging contractor (4)
- Irrigation system construction (21)
- Marine construction (4)
- Pond construction (5)
- Waterway construction (2)
- Railroad and subway construction (5)
- Cutting of right-of-way (1)
- Railroad and railway roadbed construction (6)
- Subway construction (1)
- Athletic and recreation facilities construction (2)
- Athletic field construction (1)
- Golf course construction (12)
- Tennis court construction (3)
- Land preparation construction (22)
- Land leveling (25)
- Land reclamation (3)
- Rock removal (1)
- Timber removal (1)
- Industrial plant construction (3)
- Oil refinery construction (1)
- Waste water and sewage treatment plant construction (1)
- Blasting contractor, except building demolition (1)
- Earthmoving contractor (44)
- Land clearing contractor (21)
- Pile driving contractor (1)
- Power plant construction (1)
- Trenching contractor (59)
