Biofouling and underwater asset management

In-water cleaning and inspection services

We help vessel owners, fleet operators and facility managers meet biosecurity, environmental and regulatory obligations across every stage of an asset’s lifecycle.

Working to classification society and ISO standards

Certified ISO 9001, ISO 14001, and ISO 45001

What we do

Inspection, cleaning and survey services delivered with the highest quality objective quality evidence (OQE) available

Inspection ROV beside a fouled mooring chain

Inspection ROV and diver surveys, fouling rated in the field, streamed live to whoever needs to watch.

Hull crawler cleaning the side of a grey vessel

Cleaning With capture and without capture employing robotic crawlers, divers and innovative solutions.

Survey Underwater survey to class requirements, including non-destructive testing (NDT) and survey in lieu of drydocking.

Field interface showing fouling ratings captured against a hull survey

OQE Biofouling management plans and audit ready compliance records to any specification.

How a job runs

Measure, clean, record, manage

Measure

Survey the substrate and rate the fouling. Everyone who needs to see it watches the same feed.

Clean

Marine growth removed in the most cost-effective way possible.

Record

Multi-party workflows capture the data while the job runs. Exportable OQE is generated automatically.

Manage

Biofouling management compliance assured with actionable insights that drive continuous improvement.

Live cleaning telemetry showing the fouled and cleaned hull boundary — Live telemetry from an in-water clean, captured directly into the management platform.

Field systems

The equipment we run, and sell

Inspection, intervention and cleaning class ROVs and crawlers, running MarineStream software for data capture, OQE generation and fleet management. Every system is proven on our own jobs before we offer it to anyone else.

Sales & partnerships ROV & equipment

Inspection-class ROV photographed against a black background

Where we work

Defence, commercial and offshore

Drillship at anchor on open water — In-water hull cleaning across commercial and defence fleets.

Offshore support vessel at anchor beside a reef edge — Globally deployable ROV inspection capability.

Stern of an offshore vessel with crew and a mooring buoy — Servicing offshore assets and marine infrastructure.

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Services

The five services

Biofouling management Management plans per vessel, and one program across a fleet. Biofouling inspection ROV and diver surveys, fouling rated in the field. In water cleaning Removal of marine growth from structures, hulls, propellers and niche areas. In water survey (class) In-water survey on ships and mobile offshore units by diver or ROV Fleet management A centralised end-to-end solution for biofouling prevention, control, environmental compliance and continuous improvement

Technician holding a hull crawler in a ship's deck doorway

The team

A division of Franmarine

MarineStream is a specialised biofouling management division of Franmarine (est 1981), leveraging decades of experience in delivering integrated biofouling management and underwater engineering in regulated environments.

More about us

In the field

Photos from recent jobs

Inspection ROV approaching a fouled mooring chain underwater

Operator supervising a hull crawler working at a ship's waterline

Crew working around a mooring buoy on a vessel deck

Aerial view of mooring chains running from a work deck to a buoy

Containerised filtration plant operating on a quayside

Filtration barge returning treated water to the harbour

Dive supervision control room with live monitoring screens

Technician launching an ROV over a vessel gunwale

Operator using a handheld control unit dockside

Crew member on a workboat deck at golden hour

ROV lifted on slings above harbour water during recovery

Hull crawler with lights on working the bow of a ship above the waterline

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News

MarineStream

Next step

Tell us what you need

Remote class survey, hull cleaning in-field, a complete fleet management solution, a tool to buy or an enduring partnership. Any of those is a good place to start.