- Marine salvaging and surveying services (4)
- Marine salvaging (2)
- Marine surveyors (12)
- Salvaging, distressed vessels and cargoes (1)
- Water transportation cleaning services (2)
- Boat cleaning (3)
- Boat and ship rental and leasing, except pleasure (10)
- Boat hiring, except pleasure (1)
- Boat rental, commercial (2)
- Chartering of commercial boats (13)
- Steamship leasing (1)
- Lighterage (1)
- Piloting vessels in and out of harbors (3)
