- Marine salvaging and surveying services (1)
- Marine surveyors (9)
- Salvaging, distressed vessels and cargoes (1)
- Water transportation cleaning services (1)
- Boat cleaning (2)
- Boat and ship rental and leasing, except pleasure (12)
- Boat rental, commercial (4)
- Chartering of commercial boats (18)
- Boathouses, commercial (2)
- Piloting vessels in and out of harbors (1)
