Marine, Offshore & Port
Leading subsea & commercial diving contractors in Singapore
A large share of marine maintenance happens without the ship ever leaving the water. Divers inspect and clean hulls, polish propellers, replace anodes and carry out class-approved in-water surveys accepted in place of drydocking — work that keeps a vessel earning instead of waiting. Further out, the same industry runs ROV inspection, geotechnical and geophysical survey, subsea installation and salvage across the region, and is now taking on offshore wind. The subsea and commercial diving contractors in Singapore below span both ends — an unranked set from the Singapore Industry Index's record.
The companies
-
Boskalis
A global dredging major and lead player in the Tuas Mega Port reclamation programme and the Pulau Tekong polder, operating large trailing-suction hopper dredgers; builds offshore-wind foundations, and its SMIT Salvage arm provides marine salvage and emergency response.
-
Commercial Diving Services
A Singapore underwater-services provider: hull inspection and cleaning, propeller polishing, underwater hot works and repairs, salvage and recovery and MPI inspections, serving owners, charterers and agencies across Singapore and South-East Asia.
-
DOF Subsea Asia Pacific
A Singapore regional base delivering integrated survey, ROV, subsea installation and IMR from a fleet of high-spec offshore vessels; active in floating offshore wind (Hywind Tampen installation scopes).
-
ECOsubsea
Deployed a robotic (ROV) hull-cleaning fleet in the Port of Singapore that captures and filters removed biofouling rather than releasing it, marketed as a faster, sustainable alternative to diver cleaning.
-
Franklin Offshore International
A Singapore-headquartered integrated provider of rigging, mooring and lifting equipment and services — subsea equipment, wire rope, buoyancy and mooring solutions — supporting FPSO and floating-production and offshore installation and OSV operations. ISO 9001/14001/45001.
-
Fugro (Singapore)
Runs subsea inspection, maintenance and repair (IMR), geophysical and geotechnical survey and ROV operations from a Singapore base serving Asia-Pacific oil-and-gas and offshore wind; commissioned a dedicated ROV test pool in Singapore to qualify vehicles before deployment.
-
International Marine Ind Diving (IMID)
A Singapore professional diving-contractor consortium for marine construction and subsea engineering: pile restoration and anode installation, fabrication and installation, ship inspection-repair-maintenance, salvage and recovery, and ROV services. ISO 9001/14001/45001 with class-society approvals.
-
Kim Heng Limited
An SGX-listed offshore-and-marine services contractor with two Singapore yards (Pandan Crescent and Penjuru Road, about 205 m combined waterfront). It provides EPCI support, marine construction and heavy steel fabrication, rig repair and drilling support, afloat and drydock ship repair, retrofitting and conversion, and offshore chartering — and self-builds locally-flagged crew-transfer vessels for offshore wind, including horizontal directional drilling for subsea-cable installation.
-
Master-Tech Diving Services
An IMCA-certified commercial diving contractor (400-500 deployments a year) for underwater inspection, class-approved UWILD accepted by ABS/DNV/LR/BV/RINA/ClassNK/IRS, hull cleaning, propeller polishing, underwater welding and cutting, and ROV inspection; supports pipeline installation, cable laying and platform work. ISO 9001/14001/45001.
-
Mencast Holdings
An SGX-listed offshore-and-marine group. Its Offshore & Engineering arm fabricates and maintains structures — skids, filtration systems, pressure vessels and storage tanks — with rope-access services; its Marine arm is a long-established sterngear, propeller and CPP-blade reconditioning and bronze-casting specialist, covering propeller-shaft work and dynamic balancing in-house and on-site at shipyards, anchorages and onboard; and an Energy Services arm handles tank de-sludging and hydro-cleaning.
-
Nereus Subsea
An underwater ship-maintenance and subsea provider (Singapore office plus UAE and Greece): hull cleaning and UWILD, propeller polishing, anode replacement, stern-tube-seal repair, hull-coating and sea-chest inspection, anchor-chain recovery and salvage, plus ROV services; 24/7.
-
PACC Offshore Services (POSH)
A homegrown Kuok-group OSV owner-operator running AHTS to 200-tonne bollard pull / 7,000 BHP, platform supply vessels, and DP3 semi-submersible and DP2 accommodation (walk-to-work) vessels among the world's largest; MPA-licensed for Singapore harbour towage, with subsea and offshore-wind support scope.
-
Pacific Radiance
A homegrown SGX-listed OSV group offering AHTS and PSV chartering and subsea and support services, rebuilding post-restructuring.
-
Promor
A Singapore offshore-engineering house specialising in mooring systems (turret, spread mooring, CALM buoys) and FPSO and FSO detailed-design engineering — hull structure, riser balconies, riser and subsea-system interfaces, swivels and offloading systems.
-
Singapore Salvage Engineers
A homegrown salvage, diving and marine-support contractor operating 60-plus support craft (crane and work barges, tugs, multicats, dive boats, pollution-control craft) with towing, diving, heavy lifting, mooring, anchor-installation and subsea support capability, performing wreck removal, cargo recovery and pollution control.
-
Subsea Global Solutions (Singapore)
A commercial-diving underwater ship-repair specialist with 30-plus certified diver-technicians and seven dive support vessels; port-authority-permitted in-water hull cleaning (including C-ROV), UWILD, propeller polishing, class-approved shell-plate repairs, wet and dry underwater welding, thruster and shaft-seal work, underwater hull-coating inspection and biofouling inspections. CDAS member, SS 511-2018 compliant.
-
Synergy Marine
A Singapore commercial-diving contractor delivering underwater inspection and surveys, marine construction (wharves, jetties, pontoons), underwater pipeline solutions, mooring and buoy services, and underwater cutting and welding.
How this list was made
Commercial diving contractors, underwater ship-husbandry providers and subsea engineering, survey and ROV operators working from Singapore, identified from public record and the Singapore Industry Index's own research, presented as an unranked set.
Are we missing a company?
The Singapore Industry Index compiles these sets from public record and our own research. If a Singapore company belongs here, tell us — inclusion is free.
Request inclusionWant your company featured with a film?
The featured company is the one we have documented on film. Every other company on this list is on the record in the same way.
Join the Index →