Offshore Windservice

What Offshore Windservice does

Offshore Windservice A/S, operating commercially as Odfjell Wind, is a Danish-founded maritime services company that designs, owns, and operates a fleet of 10 FOB SWATH (Small Waterplane Area Twin Hull) semi-submersible crew transfer vessels purpose-built for the offshore wind industry. Founded circa 2003 and headquartered in Thyborøn, Denmark, with a Norwegian entity (Odfjell Wind AS) in Bergen, the company serves offshore wind farm operators and developers across the North Sea, providing personnel transport, cargo delivery, fuel transfer, and electricity delivery at turbine installations. The fleet spans three capability tiers — Fob Swath 1 (18 knots), FS 2-7 (22 knots), and the newer FS 8-10 (27-35 knots, 55 personnel, hydraulic gangways) — and is differentiated by a patented bow fender with moveable clamps, dynamic positioning, dual-mode CAT/SWATH hull conversion in approximately 2 minutes, automatic moveable foils, and water jets delivering 3,000 liters per second. These features allow operations in up to 2m Hs sea states, delivering 45-55 additional working days per year per vessel compared to conventional crew transfer vessels, and the vessels are approved for alternative fuels (HVO/B100, GTL) that reduce CO2 emissions by up to 90%.

The business model is direct enterprise B2B charter: the company contracts its vessels and crews to offshore wind farm operators, charging day rates for vessel and personnel deployment (specific pricing is not publicly disclosed). Operations are supported from dual bases in Denmark and Norway, and the company maintains an in-house workshop with extensive spare parts inventory. Revenue is generated entirely through managed services — vessel charter plus crewed operations — with the company positioning as a premium, weather-resilient specialist rather than a low-cost commodity CTV provider.

The company holds Danish Maritime Authority approval, DNV Classification, and ISO 9001/14001/45001 certifications, and is integrated into the broader Odfjell group ecosystem via its associated company Odfjell Eiendom AS (real estate and vessel co-ownership) and channel partners Stenersen and MT Ocean Group. No venture capital, private equity, or institutional ownership is disclosed; ownership appears to be family/individual through the Odfjell name.

Name

Offshore Windservice

Legal name

Offshore Windservice A/S

Website

https://odfjellwind.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

51–100 employees

Short description

Offshore Windservice (Odfjell Wind) is a Danish-Norwegian private operator of a 10-vessel fleet of patented FOB SWATH semi-submersible crew transfer vessels serving offshore wind farm operators across the North Sea, with a differentiated bow fender system enabling 45-55 additional working days per year over standard CTVs.

Ownership category

akta.pro rank

Product category

Offshore Wind Marine Services

NAICS

Support Activities for Water Transportation (4883)

SIC

Water Transportation (4400)

akta.pro industry

PRIMARYEUAMACAG

Wind Turbine Installation & Commissioning (Cranes, Vessels, Jack-ups)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Wind Energy (Onshore & Offshore)

SECONDARYTLADABAL

Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS)

Transportation & Logistics/Freight Transportation (Air, Maritime, Rail, Trucking)/Ocean Freight Carriers (Container, Bulk, Tanker)

Keywords

• Offshore wind vessels
• Crew transfer services
• SWATH vessel operations
• Offshore marine services
• Wind farm logistics

Headquarters

HQ city

Thyborøn

HQ country

Denmark

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D

Revenue model

1. Offshore Wind Crew Transfer Services: Charter and service provision of FOB SWATH semi-submersible vessels for crew transfer operations at offshore wind farms. Vessels provide personnel transport, cargo delivery, fuel transfer, and electricity delivery services with enhanced operational days compared to standard crew transfer vessels.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Offshore Windservice operates a fleet of 10 FOB SWATH (Small Waterplane Area Twin Hull) semi-submersible vessels purpose-built for crew transfer and logistics operations at offshore wind farms. The company charters these vessels to offshore wind farm operators and developers to transport personnel, deliver cargo, fuel, and electricity to offshore turbines, operating in sea states up to 2m Hs.

Product overview

Offshore Windservice operates a fleet of 10 FOB SWATH (Small Waterplane Area Twin Hull) semi-submersible vessels purpose-built for offshore wind turbine service operations. The fleet consists of Fob Swath 1 through Fob Swath 10, representing a unified product line differentiated by capability class: Fob Swath 1 operates at 18 knots, Fob Swath 2-7 at 22 knots, Fob Swath 8 at 27 knots, and Fob Swath 9-10 as the flagship class operating at 35 knots with enhanced personnel capacity. All vessels feature patented bow fender technology for soft landings in up to 2m Hs sea states, moveable clamps for turbine docking, Dynamic Positioning capability, and dual-mode CAT/SWATH hull design. The fleet provides 45-55 additional working days per year compared to conventional crew transfer vessels.

Differentiator

Problem solved

Functional benefit

Brands

• FOB SWATH: Semi-submersible vessel series (FS1-FS10) designed for offshore wind operations, featuring catamaran and submerged modes with water jets, patented bow fender system, and dynamic positioning capabilities.

Products and services

• Fob Swath 1 Semi-submersible offshore wind service vessel operating at 18 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system for soft landings.
• Fob Swath 2 Semi-submersible offshore wind service vessel operating at 22 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system.
• Fob Swath 3 Semi-submersible offshore wind service vessel operating at 22 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system.
• Fob Swath 4 Semi-submersible offshore wind service vessel operating at 22 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system.
• Fob Swath 5 Semi-submersible offshore wind service vessel operating at 22 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system.
• Fob Swath 6 Semi-submersible offshore wind service vessel operating at 22 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system.
• Fob Swath 7 Semi-submersible offshore wind service vessel operating at 22 knots, approved for 24-36 industrial personnel with 35 m2 deck space, featuring patented bow fender system.
• Fob Swath 8 Semi-submersible offshore wind service vessel operating at 27 knots, approved for 55 industrial personnel with 75 m2 deck space, featuring hydraulic operated gangways and patented bow fender system.
• Fob Swath 9 Flagship semi-submersible offshore wind service vessel operating at 35 knots (25 knots on single propulsion), approved for 55 industrial personnel with 75 m2 deck space, featuring hydraulic gangways and patented bow fender system.
• Fob Swath 10 Flagship semi-submersible offshore wind service vessel operating at 35 knots (25 knots on single propulsion), approved for 55 industrial personnel with 75 m2 deck space, featuring hydraulic gangways and patented bow fender system.

Quantifiable outcome

• 45 to 55 additional working days per year compared to regular crew transfer vessels
• +3 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Odfjell Eiendom AScoreStrategic or Co-development PartnerBergen-based associated company with long-term investments in real estate (150,000+ m² commercial properties) and part ownership in custom-built tankers, ice-classed tankers, and special vessels for the offshore wind industry
• StenersenminorChannel Partner/ Reseller/ DistributorNorwegian shipping company operating fleet of MT Sten vessels (MT Sten Odin, MT Sten Tor, MT Sten Hidra, MT Sten Moster, MT Sten Idun, MT Sten Nordic, MT Sten Bergen, MT Sten Stenberg, MT Sten Fjell, MT Sten Suomi, MT Sten Bothnia, MT Sten Heim, MT Sten Baltic, MT Sten Aurora, MT Sten Frigg, MT Sten Arnold, MT Sten Straum, MT Sten Skagen) - appears to be related vessel operations entity
• MT Ocean GroupminorChannel Partner/ Reseller/ DistributorAssociated vessel fleet including MT Ocean Energy, MT Ocean Breeze, MT Ocean Trader, MT Atlantic Sun, MT Mari Sun, MT Trust 1, MT Ander, LPG Sun Gas, MT Brad Sun - related maritime operations

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• ESVAGT: Danish offshore vessel operator providing crew transfer, SOV, and emergency response services to offshore wind and oil & gas. Direct competitor in Northern European CTV market with overlapping Danish/Norwegian customer base.
• Edda Wind: Norwegian pure-play offshore wind vessel company operating CTVs and SOVs. Closest direct competitor focused exclusively on offshore wind crew transfer with similar vessel technology and customer base.
• Northern Offshore Services (N-O-S): Swedish-based operator of CTVs for the offshore wind industry in Northern Europe. Direct peer providing crew transfer services to the same wind farm operators.
• Windcat Workboats: UK-based CTV operator serving European offshore wind farms, part of Vroon Group. Direct competitor in the same CTV market with a large fleet of crew transfer vessels.
• CWind: Global Marine Group's offshore wind services arm, operating CTVs and providing blade services. Direct peer in offshore wind crew transfer and vessel-based services.
• Tidal Transit: UK-based specialist CTV operator focused on the European offshore wind market. Direct peer with similar vessel technology and target customers.

Broad incumbents

• DOF Group: Norwegian offshore vessel operator with subsea, AHTS, and offshore wind capabilities. Broad incumbent serving offshore wind with larger fleet and broader geographic reach.
• Vroon Group: Dutch-based large shipping and offshore services group, parent of Windcat Workboats. Incumbent with broad offshore vessel portfolio spanning offshore wind, offshore oil & gas, and shipping.
• Maersk Supply Service: Major offshore marine services company with broad capabilities across offshore wind, oil & gas, and subsea. Provides CTV and SOV services as part of a wider portfolio; established incumbent with greater scale and balance sheet.

Regional players

• Boka Atlantis: Dutch offshore vessel operator providing CTV and walk-to-work services primarily in Northwest European offshore wind markets. Comparable vessel services though with regional market overlap rather than Nordic focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/owsdk

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Offshore Windservice