Esvagt
Esvagt is a Danish provider of Service Operations Vessels (SOVs) and crew transfer vessels for offshore wind farm maintenance, operating primarily in the North Sea and expanding into South Korea via the KESTO joint venture with KMC Line.
- Company typePrivate
- Founded1981
- HeadquartersEsbjerg, Denmark
- Headcount1,001–5,000
- GTM typeB2B
- OfferingServices
What Esvagt does
Esvagt A/S is a Danish offshore safety and support vessel provider, headquartered in Esbjerg and founded in 1981. The company operates a fleet of nine Service Operations Vessels (SOVs) that deliver accommodation, crew transfer, and operational support to offshore wind farms, primarily in the North Sea and Barents Sea. Its core product is purpose-built SOVs, including the world's first dual-fuel powered SOV, designed to provide long-term, high-availability support to wind farm maintenance and installation campaigns.
The company earns revenue through long-term vessel charter and transportation-and-installation (T&I) service contracts with offshore wind developers, OEMs, and installation contractors. Visible customers include Vestas (South Korea, via the KESTO JV), Ørsted and Cadeler (Hornsea 3 in the UK). Pricing is quote-based and not publicly disclosed. Esvagt is majority-owned by 3i Infrastructure (a London-listed infrastructure investor), which has publicly reported strong trading performance from the portfolio company and funded recent vessel acquisitions. Beyond the SOV core, Esvagt is expanding into crew transfer vessels (CTVs) through the KESTO joint venture with South Korea's KMC Line, and is participating in the FOD4Wind consortium to develop autonomous drone-based offshore wind servicing technology.
Operationally, Esvagt has deployed the Spinergie Smart Fleet Management system across its fleet to automate compliance reporting, and is investing in dual-fuel vessel technology to reduce emissions. Geographic expansion is underway into South Korea, and the company continues to add vessels to its fleet, signaling a growth posture under its infrastructure-investor ownership.
Esvagt firmographics
Firmographics- Name
- Esvagt
- Legal name
- Esvagt A/S
- Website
- https://esvagt.com
- Company type
- Private
- Founded year
- 1981
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Esvagt is a Danish provider of Service Operations Vessels (SOVs) and crew transfer vessels for offshore wind farm maintenance, operating primarily in the North Sea and expanding into South Korea via the KESTO joint venture with KMC Line.
- Ownership category
- akta.pro rank
Esvagt industry classification
Industry- Product category
- Offshore Vessel Services
- NAICS
- Support Activities for Water Transportation (4883), Navigational Services to Shipping (48833)
- SIC
- Water Transportation (4400), Oil & Gas Field Services, Nec (1389)
- akta.pro primary industry
- Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS) (TLADABAL)
- akta.pro secondary industries
- Offshore Wind & Renewable Support Vessel Construction (SOV, CTV, WTIV) (IMAJACAG), Navigation, Communications & Integrated Bridge Systems Engineering (IMAJAGAH), Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ)
Keywords
Where Esvagt is headquartered
LocationHeadquarters
- HQ city
- Esbjerg
- HQ country
- Denmark
- HQ region
- Europe
Markets served
Esvagt business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Personnel, Operations, Technology or R&D, Supply Chain
Esvagt product offering
Product offeringCore offering
Esvagt provides Service Operations Vessels (SOVs) and Crew Transfer Vessels (CTVs) that deliver accommodation, transportation, and operational support for offshore wind farm installation, maintenance, and crew transfer. Operating a fleet of nine SOVs primarily in the North Sea and Barents Sea, the company supports offshore wind developers with long-term vessel charter and offshore support services, including the world's first dual-fuel powered SOV.
Product overview
ESVAGT is a provider of Service Operations Vessels (SOVs) for offshore wind projects, operating a fleet of nine SOVs primarily in the North Sea. The company offers purpose-built vessels for offshore wind farm maintenance, including the world's first dual-fuel powered SOV, crew transfer vessels, and support services. Through the KESTO joint venture with South Korea's KMC Line, ESVAGT has expanded into the Asian offshore wind market with long-term contracts supporting the Shinan-Ui offshore wind farm. The company is also pioneering autonomous drone technology for wind farm servicing through the FOD4Wind project.
Differentiator
Problem solved
Functional benefit
Products and services
- Service Operations Vessels (SOV) Purpose-built vessels providing accommodation, cargo, and operational support for offshore wind farm maintenance teams, with a fleet of nine SOVs operating in the North Sea. Targeted at offshore wind developers requiring continuous on-site vessel support.
- Dual-Fuel Powered Service Operations Vessel The world's first dual-fuel powered Service Operations Vessel, designed to reduce emissions versus conventional SOVs while delivering the same accommodation and operational support for offshore wind farm maintenance teams.
- Crew Transfer Vessels (CTV) Specialized vessels built and deployed to transport personnel and equipment to offshore wind farms. Two CTVs are scheduled for deployment in South Korea to support Vestas at the Shinan-Ui offshore wind farm from 2028-2039.
- Offshore Wind Transportation and Installation (T&I) Services Vessel-based support for transportation and installation of offshore wind foundations, including monopile foundation installation. Provided to wind farm developers and installation contractors (e.g., Cadeler at Ørsted's Hornsea 3).
Quantifiable outcome
- Autonomous drones expected to reduce downtime, CO2 emissions, and costs significantly by 2030
Companies that use Esvagt
Customer profileIdeal customer profiles1 record
Esvagt technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
AI capability2 records
Feature3 records
Esvagt partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core and minor.
- KMC LinecoreKESTO is a joint venture between Denmark's ESVAGT and South Korea's KMC Line established to support offshore wind farm maintenance in South Korea. The JV secured a long-term contract from 2028 to 2039 involving building and deploying two crew transfer vessels to support Vestas at the Shinan-Ui offshore wind farm, expected to supply electricity to about 350,000 households. This represents ESVAGT's strategic expansion into the Asian offshore wind market.
- Energy Cluster DenmarkminorEnergy Cluster Denmark collaborates with ESVAGT on the FOD4Wind project, a consortium including Upteko, University of Southern Denmark, and Siemens Gamesa. The project aims to improve offshore wind farm servicing using autonomous drones with a total budget of 2.2 million euros, expected to reduce downtime, CO2 emissions, and costs significantly by 2030.
- University of Southern DenmarkminorUniversity of Southern Denmark collaborates with ESVAGT on the FOD4Wind research project focused on autonomous drone technology for offshore wind servicing. The project has a total budget of 2.2 million euros and runs until 2024.
- Siemens GamesaminorSiemens Gamesa is part of the FOD4Wind consortium with ESVAGT, Energy Cluster Denmark, Upteko, and University of Southern Denmark. The project aims to improve offshore wind farm servicing through autonomous drone technology with a budget of 2.2 million euros.
- SpinergiecoreESVAGT agreed to implement Spinergie's Smart Fleet Management digital reporting system across its fleet of nine SOVs. The system automates reporting by integrating data from GPS, weather systems, and other onboard sources to reduce manual entry, limit errors, and cut administrative workloads while ensuring compliance with growing reporting requirements. Future plans include integrating fuel sensor data for emissions reduction strategies.
Scale indicators2 records
Recent moves6 records
Expansion highlights5 records
Esvagt competitors and assessment
Company assessmentDirect peers
- North Star Renewables: UK-based operator of SOVs and CTVs for offshore wind, with a sizable North Sea fleet under long-term charters to developers such as Equinor and RWE. Directly comparable in business model, vessel type, and customer segment to ESVAGT.
- Maersk Supply Service: Danish offshore support vessel operator that has been repositioning its fleet toward offshore wind services. Comparable in heritage as a North Sea-based offshore vessel operator with diversified oil & gas and wind exposure.
- Edda Wind: Norwegian operator of CTVs and SOVs serving European offshore wind farms, including the two vessels recently acquired by ESVAGT. Direct peer in purpose-built offshore wind service vessels with overlapping North Sea customer base.
- Cadeler: Danish-listed offshore wind installation and maintenance vessel operator (formerly Swire Pacific Offshore and OHT). Comparable as a pure-play offshore wind vessel operator, though skewed toward turbine/foundation installation rather than ongoing SOV-based maintenance.
- Eneti (acquired by Cadeler): Specialist in wind turbine installation vessels; now part of Cadeler. Closely aligned with ESVAGT's offshore wind exposure and customer set, though focused on installation rather than SOV operations.
Broad incumbents
- DOF Group: Norwegian offshore vessel operator with PSV, AHTS, and subsea construction assets expanding into renewables. Comparable as a North Sea offshore vessel operator with growing offshore wind exposure.
- Boskalis: Dutch global marine services group with extensive offshore wind installation, transport, and subsea capabilities. Comparable as a large, diversified player competing in offshore wind marine contracts.
- Solstad Offshore: Norwegian offshore support vessel incumbent with PSV/AHTS fleet pivoting toward offshore wind. Overlaps with ESVAGT in offshore marine services, though broader and more oil & gas-weighted.
- Van Oord: Dutch marine contractor and offshore wind installation specialist with a substantial owned fleet of installation and cable-lay vessels. Comparable as a major offshore wind marine services provider competing for similar developer contracts.
- Tidewater (with offshore wind expansion): Global offshore support vessel operator with a growing offshore wind service vessel portfolio. Comparable in core PSV/CTV operator profile, though more globally diversified and oil & gas-weighted.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Esvagt social profiles
Digital presenceEsvagt financial estimates
Financial estimateRevenue estimate
Valuation estimate
Esvagt leadership team
Management profileNumber of profiles
Esvagt subsidiaries and ownership
Company hierarchySubsidiaries1 record
Esvagt funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Esvagt 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 Esvagt
What does Esvagt do?
Esvagt provides Service Operations Vessels (SOVs) and Crew Transfer Vessels (CTVs) that deliver accommodation, transportation, and operational support for offshore wind farm installation, maintenance, and crew transfer. Operating a fleet of nine SOVs primarily in the North Sea and Barents Sea, the company supports offshore wind developers with long-term vessel charter and offshore support services, including the world's first dual-fuel powered SOV.
Is Esvagt a public or private company?
Esvagt is a private company. It is classified as private equity controlled and is currently operating.
When was Esvagt founded?
Esvagt was founded in 1981. It employs 1,001 to 5,000 people.
Where is Esvagt based?
Esvagt is headquartered in Esbjerg, Denmark, in the Europe region.
Who are Esvagt's main competitors?
Direct peers on record are North Star Renewables, Maersk Supply Service, Edda Wind, Cadeler and Eneti (acquired by Cadeler). Broad incumbents are DOF Group, Boskalis, Solstad Offshore, Van Oord and Tidewater (with offshore wind expansion).
Does Esvagt have an API?
No public API is recorded for Esvagt.
What industry is Esvagt in?
Esvagt's product category is Offshore Vessel Services. Its primary akta.pro industry code is TLADABAL, Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS), with a secondary code of IMAJACAG, Offshore Wind & Renewable Support Vessel Construction (SOV, CTV, WTIV). Its NAICS code is 4883 and its SIC code is 4400.