- Marine salvaging and surveying services (5)
- Marine salvaging (3)
- Marine surveyors (10)
- Water transportation cleaning services (3)
- Boat cleaning (7)
- Ship cleaning (2)
- Boat and ship rental and leasing, except pleasure (12)
- Boat livery, except pleasure (1)
- Boat rental, commercial (7)
- Chartering of commercial boats (18)
- Steamship leasing (5)
- Marine wrecking ships for scrap (1)
- Boathouses, commercial (2)
- Piloting vessels in and out of harbors (2)
- Ship registers (1)
