ZITON A/S
ZITON A/S is a Denmark-based offshore wind services company operating the largest dedicated O&M jack-up vessel fleet in Europe (six vessels), providing turnkey major component replacements and decommissioning to wind farm operators and OEMs including RWE, Siemens Gamesa, Ørsted, and Vattenfall across 8+ European countries.
- Company typePrivate
- Founded2007
- HeadquartersHorsens, Denmark
- Headcount101–250
- GTM typeB2B
- OfferingServices
What ZITON A/S does
ZITON A/S is a Denmark-headquartered offshore wind operations and maintenance (O&M) services provider founded in 2007, operating the largest dedicated fleet of O&M jack-up vessels in Europe. Its fleet comprises six specialized vessels — WIND, WIND PIONEER, WIND SERVER, WIND ENTERPRISE, WIND ENERGY, and WIND DISCOVERY — purpose-built or refurbished for major component replacements (MCRs) on offshore wind turbines. The company's service offering is integrated and turnkey, bundling vessel capacity, skilled WTG technicians (via subsidiary ZITON Contractors), specialized lifting tools and equipment, and O&M planning/documentation under a single contracting partner. This model reduces counterparty risk for customers and enables coverage of all major turbine brands across power ratings from legacy 500 kW units up to 15 MW next-generation turbines.
ZITON generates revenue through four primary streams: multi-year time charters with OEMs (e.g., Siemens Gamesa for WIND ENTERPRISE and WIND ENERGY in the 6-10 MW segment), long-term framework agreements with offshore wind operators (e.g., RWE for a minimum of 240 days per year from 2027), project-based full-service major component replacement engagements, and decommissioning services for end-of-life wind infrastructure. Key customers include RWE, Ørsted, Vattenfall, Vestas, and Siemens Gamesa. Operations span 8+ European countries including Denmark, Germany, the UK, Netherlands, Belgium, France, Sweden, Finland, Poland, Ireland, and Italy. The company has completed 2,100+ MCRs across 88 wind farms, with 281 MCRs completed in 2025 alone (an industry record), and achieved a 112% weighted average financial utilization rate in 2025.
The business is privately held following Macquarie Asset Management's January 2025 acquisition through Macquarie European Infrastructure Fund 7. ZITON also maintains a EUR 150 million bond listed on the Oslo Stock Exchange (ISIN NO 0012928185). 2025 financial performance showed EBITDA of EUR 69.0 million (exceeding EUR 60-65m guidance) and operating cash flow of EUR 66.2 million; 2026 EBITDA is guided at EUR 64-69 million. Approximately 70 employees work at the Horsens headquarters, with additional personnel operating offshore on vessels and at the new Port of Esbjerg warehouse facility inaugurated October 2025. A new Nordic Swan Ecolabel-certified headquarters is under construction in Horsens for Q1 2027 completion. The company is pursuing a 2040 net zero target via HVO100 renewable fuel and alignment with FuelEU Maritime and IMO Direct Compliance frameworks.
ZITON A/S firmographics
Firmographics- Name
- ZITON A/S
- Legal name
- ZITON A/S
- Website
- https://ziton.eu
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- ZITON A/S is a Denmark-based offshore wind services company operating the largest dedicated O&M jack-up vessel fleet in Europe (six vessels), providing turnkey major component replacements and decommissioning to wind farm operators and OEMs including RWE, Siemens Gamesa, Ørsted, and Vattenfall across 8+ European countries.
- Ownership category
- akta.pro rank
ZITON A/S industry classification
Industry- Product category
- Offshore Wind Operations and Maintenance Services
- akta.pro primary industry
- Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets) (EUAEAGAO)
- akta.pro secondary industries
- Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB), Wind Component Service, Repair & Refurbishment (Blades, Gearboxes, Bearings) (EUAMACAI)
Keywords
Where ZITON A/S is headquartered
LocationHeadquarters
- HQ city
- Horsens
- HQ country
- Denmark
- HQ region
- Europe
Offices4 records
Markets served
ZITON A/S business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Time Charter Contracts: Long-term time charter agreements for dedicated vessel capacity with major offshore wind operators and OEMs. Vessels are chartered with crew, typically for multi-year periods. Examples include charters with Siemens Gamesa for WIND ENERGY and WIND ENTERPRISE.
- Full-Service Major Component Replacements: Turnkey solutions for major component replacements including vessels, lifting operations, technicians, equipment, and planning. Revenue is generated through project-based engagements with day rates and service fees.
- Framework Agreements: Strategic framework agreements providing minimum vessel capacity commitments (e.g., 240 days per year with RWE) with predictable access fees and additional service charges for auxiliary services.
- Decommissioning Services: Tailor-made solutions for removal of met masts, wind turbines, and foundations, generating one-time project-based revenue.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
ZITON A/S product offering
Product offeringCore offering
ZITON provides turnkey operations and maintenance services for offshore wind farms, anchored on a dedicated fleet of six jack-up vessels and supported by skilled WTG technicians, lifting equipment, tools, planning, and decommissioning capabilities. The company's primary service is major component replacement (MCR) of gearboxes, generators, blades, and other large turbine parts, delivered under long-term time charters, framework agreements, and project-based contracts to wind farm operators and turbine OEMs across northern Europe.
Product overview
ZITON A/S is a market-leading offshore wind operations and maintenance (O&M) service provider specializing in major component replacements. The company operates a fleet of six dedicated jack-up vessels (WIND, WIND PIONEER, WIND SERVER, WIND ENTERPRISE, WIND ENERGY, and WIND DISCOVERY) - the largest fleet dedicated to major component replacements in Europe. These vessels are supported by ZITON's integrated service offering including turnkey solutions (full responsibility as single contracting partner), ZITON Contractors (skilled WTG technicians, managers, and lifting supervisors), specialized equipment and tools, planning and documentation services, and decommissioning capabilities. The integrated approach combines vessels, manpower, equipment, and planning to deliver full-service solutions for offshore wind O&M.
Differentiator
Problem solved
Functional benefit
Products and services
- Turnkey Solutions for Offshore Wind O&M Comprehensive solutions for all kinds of major component O&M jobs within offshore wind, where ZITON acts as the sole contracting partner and assumes full responsibility, reducing customer risk.
- Jack-up Vessel Fleet (Six Dedicated O&M Vessels) Fleet of six specialized O&M jack-up vessels providing flexibility and versatility to operate at virtually every offshore wind farm in northern Europe, dedicated to major component replacements.
- WIND (Jack-up Vessel) First vessel in ZITON's fleet, one of the early jack-up vessels in offshore wind, used to install some of the earliest offshore wind farms and to perform major component replacements.
- WIND PIONEER (Jack-up Vessel) Jack-up vessel that became operational in September 2015 after a complete rebuild at Orskov Yard; reached 400 major component replacements in April 2025.
- WIND SERVER (Jack-up Vessel) Jack-up vessel built by Nordic Yards in Germany; operational since March 2015; reached 600 major component replacements in May 2025.
- WIND ENTERPRISE (Jack-up Vessel) Jack-up vessel enabling service for larger turbines up to 10 MW; purchased by ZITON in 2020; operates under time charter for the 6-10 MW segment.
- WIND ENERGY (Jack-up Vessel) Jack-up vessel acquired in 2023, departed China August 2023 and arrived in Denmark November 2023; works on time charter with Siemens Gamesa for the 6-10 MW segment.
- WIND DISCOVERY (Jack-up Vessel) Sixth jack-up vessel in the fleet, acquired in November 2024 and operational from May 2025 after upgrade programme; owned by sister company DiscoveryCo ApS and operated by ZITON under time charter.
- Manpower (ZITON Contractors) Provision of skilled and experienced WTG technicians for all WTG brands, plus managers and lifting supervisors, delivered through subsidiary ZITON Contractors.
- Planning and Documentation O&M planning and documentation services delivered by professionals with thousands of hours of practical experience covering crew transfers, component exchanges, and health and safety measures.
- Equipment and Tools Wide range of specialized tools and equipment enabling completion of all kinds of major component replacements for all WTG brands.
- Decommissioning Services Tailor-made solutions for removal of met masts, wind turbines, and foundations, executed with focus on safety, cost efficiency, and minimal environmental impact.
Quantifiable outcome
- 281 major component replacements completed in 2025 - a new industry record
- +4 more outcomes
Companies that use ZITON A/S
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles3 records
ZITON A/S technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
ZITON A/S partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core and minor.
- RWEcoreExtended strategic partnership with a new three-year framework agreement (from 2027 onwards) providing dedicated jack-up vessel capacity for RWE's offshore wind portfolio. The agreement includes vessels, lifting operations, and auxiliary services for a minimum of 240 days per year. Originally established in 2023, this partnership supports RWE's operations across the UK and continental Europe.
- Siemens GamesacoreLong-term vessel time charter agreements signed in May 2023, including extensions for WIND ENTERPRISE charter and new charter for WIND ENERGY. Vessels service the 6-10 MW turbine segment under multi-year commitments.
- DiscoveryCo ApScoreSister company that owns the jack-up vessel WIND DISCOVERY, which is operated by ZITON under time charter arrangements. This affiliated structure allows for fleet expansion while maintaining operational control.
- ØrstedminorThree-year framework agreement signed in 2016 for offshore wind O&M services, later extended through 2021.
- VattenfallminorFramework agreements established in 2016 and extended in 2019 for offshore wind operations and maintenance services.
Scale indicators9 records
Recent moves9 records
Expansion highlights6 records
ZITON A/S competitors and assessment
Company assessmentEmerging players
- Cadeler: Offshore wind installation vessel operator (Oslo Børs-listed) that is expanding into O&M and major component replacement using its jack-up fleet. Overlapping vessel class and customer relationships but historically focused on installation rather than O&M.
Direct peers
- ESVAGT: Danish offshore service vessel operator that runs SOVs and emergency response vessels dedicated to offshore wind O&M. Most direct peer to ZITON given shared Danish base, dedicated wind-farm service focus, and crew-transfer plus O&M charter model.
- Edda Wind: Pure-play Norwegian offshore wind service vessel operator with a fleet of SOVs chartered to OEMs and operators across Europe. Listed on Oslo Børs, making it a relevant capital-markets comparable as well as operational peer for charter-based wind O&M services.
- Vroon Offshore Wind: Dutch offshore vessel owner-operator with a dedicated offshore wind division running SOVs servicing European wind farms. Comparable in vessel type, customer base (Ørsted, RWE, Vattenfall) and long-term charter revenue model.
- North Star Renewables: UK-based offshore wind service vessel operator with a fleet of SOVs supporting major European wind farms. Comparable operating model (multi-year charters, dedicated wind service, similar customer base of utilities and OEMs) and overlapping geographic footprint in Northern Europe.
Broad incumbents
- Van Oord: Dutch marine contractor with a large offshore wind division covering cable installation, foundation and turbine installation, and a growing O&M and decommissioning footprint. Comparable in scope of services and European customer overlap, but a much larger and broader marine contractor.
- DOF: Norwegian subsea and offshore vessel operator that has expanded into the offshore wind service market with AHTS and subsea construction vessels supporting European wind projects. Comparable in offshore vessel services and Northern European footprint, but more diversified.
- Maersk Supply Service: Danish offshore support vessel operator (part of A.P. Møller Holding) with offshore wind vessel activity alongside traditional oil and gas. Comparable in Nordic base and offshore vessel expertise, though wind exposure is a smaller share of the overall fleet.
- BOURBON: French offshore marine services provider with vessels supporting offshore wind, oil and gas and subsea customers. Provides CTVs and platform supply vessels to European wind farms, comparable in vessel services and customer base, though more diversified across energy verticals.
Regional players
- Tidal Transit: UK-based operator of crew transfer vessels serving offshore wind farms in British and adjacent waters. Comparable in offshore wind service vessel model but focused on crew transfer rather than major component replacement.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
ZITON A/S social profiles
Digital presenceZITON A/S compliance and trust
Trust signalCompliance4 records
ZITON A/S financial estimates
Financial estimateRevenue estimate
Valuation estimate
ZITON A/S leadership team
Management profileNumber of profiles
Profiles6 records
ZITON A/S subsidiaries and ownership
Company hierarchySubsidiaries5 records
ZITON A/S funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ZITON A/S 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 ZITON A/S
What does ZITON A/S do?
ZITON provides turnkey operations and maintenance services for offshore wind farms, anchored on a dedicated fleet of six jack-up vessels and supported by skilled WTG technicians, lifting equipment, tools, planning, and decommissioning capabilities. The company's primary service is major component replacement (MCR) of gearboxes, generators, blades, and other large turbine parts, delivered under long-term time charters, framework agreements, and project-based contracts to wind farm operators and turbine OEMs across northern Europe.
Is ZITON A/S a public or private company?
ZITON A/S is a private company. It is classified as private equity controlled and is currently operating.
When was ZITON A/S founded?
ZITON A/S was founded in 2007. It employs 101 to 250 people.
Where is ZITON A/S based?
ZITON A/S is headquartered in Horsens, Denmark, in the Europe region.
How does ZITON A/S make money?
Four revenue lines are on record. Time Charter Contracts are the primary driver. The others are full-Service Major Component Replacements, framework Agreements and decommissioning Services.
Who are ZITON A/S's main competitors?
Cadeler is listed as an emerging player. Direct peers are ESVAGT, Edda Wind, Vroon Offshore Wind and North Star Renewables. Broad incumbents are Van Oord, DOF, Maersk Supply Service and BOURBON. Tidal Transit is listed as a regional player.
Does ZITON A/S have an API?
No public API is recorded for ZITON A/S.
What industry is ZITON A/S in?
ZITON A/S's product category is Offshore Wind Operations and Maintenance Services. Its primary akta.pro industry code is EUAEAGAO, Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets), with a secondary code of EUAEAGAB, Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal).