- Dams, waterways, docks, and other marine construction (24)
- Caisson drilling (5)
- Dam construction (1)
- Dock construction (4)
- Drainage system construction (20)
- Dredging contractor (7)
- Irrigation system construction (14)
- Marine construction (9)
- Pond construction (25)
- Waterway construction (4)
- Railroad and subway construction (14)
- Railroad and railway roadbed construction (25)
- Subway construction (1)
- Athletic and recreation facilities construction (3)
- Athletic field construction (4)
- Golf course construction (21)
- Tennis court construction (13)
- Land preparation construction (55)
- Land leveling (10)
- Land reclamation (12)
- Rock removal (3)
- Timber removal (3)
- Industrial plant construction (23)
- Chemical plant and refinery construction (9)
- Mine loading and discharging station construction (1)
- Oil refinery construction (1)
- Waste disposal plant construction (10)
- Waste water and sewage treatment plant construction (47)
- Blasting contractor, except building demolition (42)
- Earthmoving contractor (44)
- Land clearing contractor (74)
- Pile driving contractor (9)
- Power plant construction (14)
- Trenching contractor (13)
