- Marine salvaging and surveying services (7)
- Marine salvaging (3)
- Marine surveyors (20)
- Salvaging, distressed vessels and cargoes (1)
- Water transportation cleaning services (5)
- Boat cleaning (8)
- Boat and ship rental and leasing, except pleasure (19)
- Boat hiring, except pleasure (1)
- Boat livery, except pleasure (3)
- Boat rental, commercial (16)
- Chartering of commercial boats (87)
- Steamship leasing (6)
- Ship dismantling (1)
- Boathouses, commercial (1)
- Canal operation (14)
- Lighterage (2)
- Piloting vessels in and out of harbors (8)
- Ship registers (1)
