- Marine salvaging and surveying services (1)
- Marine surveyors (13)
- Salvaging, distressed vessels and cargoes (1)
- Boat cleaning (1)
- Boat and ship rental and leasing, except pleasure (27)
- Boat hiring, except pleasure (3)
- Boat rental, commercial (9)
- Chartering of commercial boats (117)
- Steamship leasing (1)
- Piloting vessels in and out of harbors (4)
