Diverse Marine
Diverse Marine is a UK workboat shipbuilder based at the 12-acre Medina Yard in Cowes, Isle of Wight, designing, building, refitting, and repairing crew transfer vessels and autonomous surface vessels for offshore wind operators, defence, and harbour authorities.
- Company typePrivate
- Founded2018
- HeadquartersCowes, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Diverse Marine does
Diverse Marine is a UK-based workboat shipbuilder founded in 2018 and headquartered at the 12-acre Medina Yard in Cowes, Isle of Wight. The company was formed by three former South Boats IOW directors (Ben Colman, Matt Floyd, and Matt Chessell), who acquired the predecessor's assets and brought across 20 staff with accumulated CTV design and build experience. It operates across four business lines: new-build construction of crew transfer vessels (CTVs) for the offshore wind sector, in-house design and CFD-validated hull development (Cyclone, Defiant, and Hydronaut classes), refit and repair services, and exclusive UK distribution for US-based SAFE Boats International. The customer base is concentrated in the offshore wind vessel operator segment, with NR Marine Services as the largest customer (7 vessels delivered), alongside Turner Iceni, High Speed Transfers, Farra Marine, Nauticus Robotics, RNLI, Royal Navy, OEG, Commercial Rib Charter, and Cowes Harbour Commission.
The company's core products are high-performance aluminium CTVs, with the Defiant class representing a flag-bearer on published speed and fuel-efficiency performance metrics. Engineering is supported by CFD-based hull design and Lloyd's Register class work, including a Zero Emissions Air Quality notation. From April 2024, the company integrates Hefring Marine's IMAS AI system as a standard feature on new builds, embedding vessel stability and monitoring intelligence into the base spec. The Hydronaut autonomous vessel, developed in partnership with Nauticus Robotics, extends the product range into uncrewed surface vessels.
The business model combines direct new-build sales (multi-million-pound unit prices per CTV), recurring refit and class-survey revenue from the installed vessel base, and (from November 2023) a CTV Finance & Lease Programme operated with LCM Partners that lowers the capital barrier to procurement. The SAFE Boats International distribution agreement provides a parallel channel into UK defence and security workboat procurement. The company is a private limited company with no disclosed external funding; headcount is reported in the 11-50 band, and the October 2022 freehold purchase of Medina Yard is the most visible balance-sheet commitment. Diverse Marine is ISO 9001, 14001, and 45001 certified.
Diverse Marine firmographics
Firmographics- Name
- Diverse Marine
- Legal name
- Diverse Marine Ltd
- Website
- https://diversemarine.co.uk
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Diverse Marine is a UK workboat shipbuilder based at the 12-acre Medina Yard in Cowes, Isle of Wight, designing, building, refitting, and repairing crew transfer vessels and autonomous surface vessels for offshore wind operators, defence, and harbour authorities.
- Ownership category
- akta.pro rank
Diverse Marine industry classification
Industry- Product category
- Marine vessel manufacturing
- NAICS
- Ship and Boat Building (3366), Ship Building and Repairing (336611), Boat Building (336612)
- SIC
- Ship & Boat Building & Repairing (3730)
- akta.pro primary industry
- Pilot Boats & Crew Transfer/Service Craft (Pilotage, CTV-style workboats) (IMAJADAG)
Keywords
Where Diverse Marine is headquartered
LocationHeadquarters
- HQ city
- Cowes
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Diverse Marine business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Vessel New Build: Design and construction of custom and semi-custom offshore wind crew transfer vessels, patrol boats, workboats, autonomous vessels, and SAR craft. Includes diverse range of vessel classes (Storm, Typhoon, Brevity SL/XL, Cyclone, Defiant, Chartwell, Ambitious).
- Maintenance, Refit & Repair: Comprehensive refit, repair and modification services for workboats and pleasure craft, including vessel conversions, lengthening projects, and upcycling of older vessels. Framework agreement with RNLI for service-based works.
- Finance & Lease Programme: Shipyard-funded construction financing enabling operators to acquire vessels through term finance or long-term lease options. Payments begin on delivery with no upfront capital required.
- SAFE Boats Distribution: Exclusive UK representation for SAFE Boats International's portfolio of aluminium boats for defence, security and rescue applications
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Finance & Lease Programme - No upfront capital required with payments beginning on delivery |
| Subscription | Multi-year contract | Finance & Lease Programme - Long-term lease options |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels5 records
Diverse Marine product offering
Product offeringCore offering
Diverse Marine is a UK workboat shipbuilder that designs, constructs, refits and repairs high-performance aluminium vessels — primarily offshore wind crew transfer vessels (CTVs) in classes such as Storm, Typhoon, Brevity SL/XL, Ambitious, Cyclone and Defiant, alongside patrol and military craft, pilot and rescue boats, autonomous vessels and SAFE Boats International aluminium craft distributed in the UK. The company also delivers a proprietary CTV Finance & Lease Programme, comprehensive maintenance/refit/repair services, and conversions such as vessel lengthening and upcycling.
Product overview
Diverse Marine is a UK-based workboat shipbuilder and marine services company offering a comprehensive portfolio of vessel new-build, refit, repair, and finance solutions. The core product portfolio centres on offshore wind crew transfer vessels (CTVs) across multiple classes including Storm, Typhoon, Brevity SL, Brevity XL, Ambitious, Cyclone, and Defiant, ranging from 20m to 29m, alongside complementary workboat ranges (patrol/military craft, pilot boats, rescue craft, workboats) and the autonomous Hydronaut vessel. Diverse Marine also serves as the UK representative for SAFE Boats International (7m–26m aluminium craft) and offers a proprietary CTV Finance & Lease Programme. All vessels are built at the company's Medina Yard in Cowes, Isle of Wight.
Differentiator
Problem solved
Functional benefit
Products and services
- Storm Class CTV
Quantifiable outcome
- Noise levels sub 55dBA at full power in passenger saloon
- +4 more outcomes
Companies that use Diverse Marine
Customer profileNamed customers14 records
Segments5 records
Ideal customer profiles5 records
Diverse Marine technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Diverse Marine partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core.
- Farra MarinecoreDelivery of Farra Lir Brevity XL CTV with advance discussions on multi-vessel order for three further CTVs plus options. Partnership for UK-built CTVs supporting offshore wind sector. Farra Marine targeting fleet of 50 vessels.
- VARD GROUP AScoreSelected by VARD GROUP AS to construct Chartwell Daughter Craft for installation on VARD 4 19 CSOV under construction for PURUS Wind.
- Hefring MarinecoreStrategic partnership integrating Hefring Marine's IMAS AI system as standard feature in all new UK-built offshore wind CTVs. AI provides real-time decision support, fuel efficiency optimization, and safety monitoring. Exclusive for UK new CTV builds.
- Nauticus RoboticscoreAgreement to construct Hydronaut autonomous UAV deployment daughter craft for Nauticus Fleet - robotic navy with 20 vessel planned production run. Developed with Global Marine Design of Australia specifically for Nauticus Aquanaut platform.
- ATLAS ELEKTRONIK UK (AEUK)coreContract awarded for production of three SEA Class Passenger Transfer Boats for Royal Navy's HMS Prince of Wales aircraft carrier.
- SAFE Boats InternationalcoreDiverse Marine signed International Sales Representative Agreement for the UK with SAFE Boats International, an American aluminium boat manufacturer supplying military, law enforcement, fire and rescue agencies. Partnership strengthened in August 2021 focusing on offshore wind market, with Diverse Marine providing proven CTV designs and experience to US Offshore Wind Market.
- Chartwell MarinecoreIndustry-leading naval architect and designer of proven high-speed vessel designs including Chartwell 24 CTV, Brevity Class, and Defiant Class. Long-standing collaboration on multiple vessel projects for offshore wind operators.
- Walker Marine Design (WMD)coreProfessional naval architecture and consultancy business based in Hamble-le-Rice near Southampton. Provides complete design packages from concept to engineering and production drawings for high-speed commercial vessels.
- RNLIcoreFramework agreement with RNLI to provide service-based works on all classes of RNLI Lifeboats.
- High Speed TransferscoreLong-term customer and partner ordering multiple hybrid Chartwell 24 and BARTech 30 CTVs. HST Ella was first hybrid Chartwell 24 vessel delivered.
- NR Marine ServicescoreLong-term strategic customer ordering multiple vessel classes (Storm, Typhoon, Cyclone, Defiant) through Finance & Lease Programme. 20+ years of offshore wind experience.
Scale indicators6 records
Recent moves7 records
Expansion highlights6 records
Diverse Marine competitors and assessment
Company assessmentDirect peers
- Alnmaritec: Alnmaritec is a UK aluminium workboat builder producing crew transfer vessels, pilot boats, patrol craft, and windfarm support vessels. It directly competes with Diverse Marine across overlapping CTV and workboat product lines, often targeting the same offshore wind and harbour authority customers.
- Windcat Workboats: Windcat Workboats is a UK-based operator and builder of offshore wind crew transfer vessels headquartered near the Isle of Wight. It directly competes with Diverse Marine in the same CTV class for the same UK and European offshore wind customers, and operates one of the largest CTV fleets in Europe.
- Njord Offshore: Njord Offshore operates a CTV fleet serving the European offshore wind sector and has commissioned new builds at European shipyards. It is a directly comparable CTV customer/operator that competes for the same fleet renewal and expansion work as Diverse Marine's customer base.
- SAFE Boats International: SAFE Boats International is a US aluminium boat manufacturer supplying defence, security, and rescue agencies with a 7m–26m range, distributed exclusively in the UK by Diverse Marine. It is a direct peer in aluminium workboat manufacturing and a strategic partner on offshore wind CTVs entering the US market.
- HeliService: HeliService is a German operator-builder of high-speed CTVs serving the European offshore wind market with its own fleet and new builds. It competes with Diverse Marine for European offshore wind fleet contracts and overlaps in aluminium catamaran crew transfer vessel designs.
Broad incumbents
- Damen Shipyards: Damen Shipyards is a major Dutch shipbuilding group with an extensive workboat, patrol vessel, and offshore support portfolio. It is a broad incumbent offering overlapping CTV, patrol, and SAR products alongside a much wider shipbuilding range that competes for the same UK and European customers as Diverse Marine.
- North Star Offshore: North Star operates one of the largest offshore service vessel fleets in the North Sea, including CTVs and SOVs, and has commissioned new builds from European yards. It is a broad incumbent in the offshore wind vessel space, overlapping with Diverse Marine's customers and capability.
- VARD Group: VARD Group is a large Norwegian shipbuilder specialising in offshore service vessels (SOVs/CSOVs) and other offshore support new builds. It is a current Diverse Marine customer (ordered a Chartwell Daughter Craft for a VARD 4 19 CSOV) and a broad incumbent competing in adjacent offshore vessel segments.
Others
- Chartwell Marine: Chartwell Marine is a UK-based naval architecture firm that designs the Chartwell 24, Brevity, and Defiant CTV classes built by Diverse Marine. It is an adjacent ecosystem participant — the upstream design partner for Diverse Marine's core product range — and indirectly influences competitive positioning through its work with other builders.
Emerging players
- Bluestream Offshore: Bluestream Offshore is a Dutch offshore service provider operating CTVs and small support vessels for European wind farm O&M. It is an emerging peer that overlaps with Diverse Marine's customer ecosystem, particularly as a potential buyer of new-build or refit CTVs.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat6 records
Key risks4 records
Key highlights6 records
Customer concentration
Diverse Marine social profiles
Digital presenceDiverse Marine compliance and trust
Trust signalCompliance3 records
Diverse Marine financial estimates
Financial estimateRevenue estimate
Valuation estimate
Diverse Marine leadership team
Management profileNumber of profiles
Profiles5 records
Diverse Marine funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Diverse Marine M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Diverse Marine
What does Diverse Marine do?
Diverse Marine is a UK workboat shipbuilder that designs, constructs, refits and repairs high-performance aluminium vessels — primarily offshore wind crew transfer vessels (CTVs) in classes such as Storm, Typhoon, Brevity SL/XL, Ambitious, Cyclone and Defiant, alongside patrol and military craft, pilot and rescue boats, autonomous vessels and SAFE Boats International aluminium craft distributed in the UK. The company also delivers a proprietary CTV Finance & Lease Programme, comprehensive maintenance/refit/repair services, and conversions such as vessel lengthening and upcycling.
Is Diverse Marine a public or private company?
Diverse Marine is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Diverse Marine founded?
Diverse Marine was founded in 2018. It employs 11 to 50 people.
Where is Diverse Marine based?
Diverse Marine is headquartered in Cowes, United Kingdom, in the Europe region.
How does Diverse Marine make money?
Four revenue lines are on record. Vessel New Build is the primary driver. The others are maintenance, Refit & Repair, finance & Lease Programme and SAFE Boats Distribution.
Who are Diverse Marine's main competitors?
Direct peers on record are Alnmaritec, Windcat Workboats, Njord Offshore, SAFE Boats International and HeliService. Broad incumbents are Damen Shipyards, North Star Offshore and VARD Group. Chartwell Marine is listed as an others. Bluestream Offshore is listed as an emerging player.
Does Diverse Marine have an API?
No public API is recorded for Diverse Marine.
What industry is Diverse Marine in?
Diverse Marine's product category is Marine vessel manufacturing. Its primary akta.pro industry code is IMAJADAG, Pilot Boats & Crew Transfer/Service Craft (Pilotage, CTV-style workboats). Its NAICS code is 3366 and its SIC code is 3730.