- Marine salvaging and surveying services (1)
- Marine salvaging (3)
- Marine surveyors (5)
- Salvaging, distressed vessels and cargoes (2)
- Water transportation cleaning services (5)
- Boat cleaning (3)
- Boat and ship rental and leasing, except pleasure (5)
- Boat rental, commercial (5)
- Chartering of commercial boats (14)
- Steamship leasing (3)
- Lighterage (1)
- Piloting vessels in and out of harbors (3)
