New vessel build
Design, build and fabrication of specialist commercial vessels, including more sophisticated, bespoke and unmanned craft.
Vessel build portfolio.
-

Patrol and survey vessels.
Patrol and Survey Vessels for fisheries protection, coastal security, harbour patrol, offshore support, hydrographic surveying, and environmental monitoring.
-

Crew transfer vessels.
Proven hull designs with robust construction and a highly adaptable layout, our CTVs are engineered to deliver exceptional seakeeping, operational efficiency, and crew comfort.
-

Passenger vessels.
Our passenger vessels deliver exceptional reliability, seakeeping and passenger experience, ensuring dependable operation even in challenging coastal and offshore environments.
-

Pilot Boats.
Our portfolio includes both fast-response and heavy-displacement pilot vessels, designed to provide exceptional seakeeping, safety, and reliability in demanding maritime environments.
-

RIBWORKER 2.0
Building on the proven Ocean Dynamics RIBWORKER vessels of the 1980s, the new aluminium RIBWORKER 2.0 range delivers exceptional performance, durability and value.
Patrol and survey vessels.
We build versatile Patrol and Survey Vessels for fisheries protection, coastal security, harbour patrol, offshore support, hydrographic surveying, and environmental monitoring.
Designed for excellent seakeeping, endurance, and reliability, each vessel can be tailored with specialist survey equipment, advanced communications, interceptor craft deployment, and Uncrewed Surface Vessel (USV) support.
Combining robust construction with proven hull designs, Mainstay delivers safe, capable, and adaptable platforms for a wide range of maritime operations.
Crew transfer vessels.
We ensure every vessel is build to meet the demanding requirements of offshore personnel transfer operations. Each vessel is optimised to provide the safe, efficient, and reliable transportation of personnel, equipment, and essential supplies to offshore assets.
Combining proven hull designs with robust construction and a highly adaptable layout, our CTVs are engineered to deliver exceptional seakeeping, operational efficiency, and crew comfort.
The result is a vessel that excels in speed, reliability, durability, and passenger welfare, ensuring dependable performance in even the most challenging offshore environments.
Passenger vessels.
We ensure every vessel is designed to meet the demanding requirements of passenger transport operations. Each vessel is tailored to provide the safe, reliable and efficient transfer of passengers, combining proven hull designs with robust construction and a highly configurable layout to meet specific operational needs.
Designed with a focus on safety, comfort and performance, our passenger vessels deliver exceptional reliability, seakeeping and passenger experience, ensuring dependable operation even in challenging coastal and offshore environments.
Pilot boats.
We have extensive experience in the construction of Pilot Boats, delivering vessels ranging from 16m to 22m in length for operators across the globe. Our portfolio includes both fast-response and heavy-displacement pilot vessels, designed to provide exceptional seakeeping, safety, and reliability in demanding maritime environments.
Renowned for quality and durability, our vessels are built to operate safely in severe weather conditions while maintaining excellent performance and crew comfort. Combining proven hull forms with robust construction, Mainstay pilot boats provide dependable service and outstanding operational capability.
RIBWORKER 2.0
- built to work.
Building on the proven Ocean Dynamics RIBWORKER vessels of the 1980s, the new aluminium RIBWORKER 2.0 range delivers exceptional performance, durability and value. Available from 6m to 13m, each vessel can be customised to meet specific operational requirements and is fully compliant with Workboat Code 3.
Designed to withstand repeated groundings and impacts, RIBWORKER 2.0 minimises downtime while maximising operational availability. Ideal for defence, patrol, SAR, USV support, salvage, dive support, crew transfer, survey and commercial passenger operations.
The highly customisable vessel platform can be tailored to a wide range of operational requirements, with options including high or low deck layouts, full, partial or open-top wheelhouses, single or twin-drive propulsion, waterjet, shaft, leg or outboard systems, self-righting capability, lifting arrangements, fender or collar systems,