- Marine salvaging and surveying services (11)
- Marine salvaging (6)
- Marine surveyors (46)
- Salvaging, distressed vessels and cargoes (1)
- Water transportation cleaning services (7)
- Boat cleaning (7)
- Ship cleaning (3)
- Boat and ship rental and leasing, except pleasure (75)
- Boat hiring, except pleasure (3)
- Boat livery, except pleasure (1)
- Boat rental, commercial (92)
- Chartering of commercial boats (31)
- Steamship leasing (4)
- Boathouses, commercial (1)
- Lighterage (2)
- Piloting vessels in and out of harbors (11)
