Commercial Diving Services

Neptune provides a complete range of commercial diving and inspection, repair and maintenance services to clients in the oil and gas, shipping, defence and marine infrastructure industries.

Diving Services

Neptune Diving comprises bases in Perth, Darwin and Melbourne servicing both on and offshore clients across Neptune’s global operations.

Combining state-of-art equipment, the precise allocation of resources and highly experienced personnel, Neptune’s commercial diving division has the capability to complete projects of any scale, to the highest industry standards. Furthermore, Neptune Diving has achieved an excellent performance record and reputation for delivering quality services in accordance with client cost and time constraints.

Neptune Diving is strategically located to service the Australasian region with extensive operations throughout the Joint Development Petroleum Area (JDPA) and the North West Shelf.


Neptune Diving provides a range of commercial diving and inspection, repair and maintenance (IRM) services including:

Assets and Equipment:

  • 5 vessels ranging from 6m - 13m
  • 7 IMCA compliant offshore dive systems
  • 9 onshore dive systems
  • 1 Comanche Light Work Class ROV
  • 4 Seabotix LBV 150/200s
  • 1 Seaeye Falcon ROV
  • 1 Sub-Atlantic Mojave ROV
  • 2 Swift work class ROVs
  • 5 x Deck Compression Chambers
  • 5 x Dive Control
  • 2 x Fully Hydraulic Diver Launch and Recovery Systems (LARS)
  • 1 x Hydraulic LARS with Pneumatic override capability
  • 1 x No Weld LARS (ideal for areas where welding is not possible)
  • 2 x HP Water Blasters (13,000 – 17,000 psi)
  • 2 x Grit Blasting Spreads
  • Extensive Range of Subsea Tooling (including hydraulic and pneumatic)
  • Digital and 35mm Underwater Camera Systems
  • UT / CP / Eddy Current Equipment
  • Alternating Current Field Measurement (AFCM)
  • Underwater Magnetic Particle Inspection

Additionally, Neptune also has a fleet of smaller dedicated Dive Support Vessels (DSVs) available.

DSV ISSABELLE                                THE PHOENIX                             DSV WHITE LIGHTNING

DSV Issabelle Phoenix Vessel DSV White Lightning

Vessels chartered by Neptune include:

  • Air Dive Support Vessels
  • Construction Support Vessels
  • Saturation Dive Support Vessels
  • Platform Support & Supply Vessels






In Australia, Neptune Diving conducts all operations in accordance with the Northern Territory and Western Australian Governments and has achieved NOPSEMA (National Offshore Petroleum Safety & Environmental Management Authority) approval for its Diving Safety Management System (DSMS).

Neptune Diving is also accredited to AS/NZS ISO 9001 for its Quality Management System, AS/NZS ISO 14001 for its Environment Management System, OHSAS 18001 for Occupational Health & Safety Management System.

Please select the links below to view the relevant certificates