Haizea Wind Group

What Haizea Wind Group does

Haizea Wind Group is a Spanish-headquartered manufacturer of large-scale structural components for the wind energy industry, primarily serving offshore wind developers and turbine original equipment manufacturers. Founded in 2017 and headquartered in Zierbena (Bilbao) under parent Haizea Investments S.L., the company produces XXL monopile foundations, offshore and onshore wind towers, transition pieces, large cast components, and related steel structures. The group operates a multi-plant network spanning Spain (Bilbao, Burgos) and France (Brest), and recently divested its Argentine subsidiary Haizea Sica to refocus on European and US offshore wind. A €250M+ capital programme has expanded the Bilbao facility to manufacture next-generation monopiles designed for 15+ MW turbines, taking advantage of direct quayside access at the Port of Bilbao for oversized component shipping.

The company's revenue model is built on long-term supply contracts and framework agreements with major European offshore wind developers and Tier-1 turbine OEMs. Named customers include Ørsted (Hornsea 3, 197 monopiles), Iberdrola/Scottish Power (East Anglia 3, 50 monopiles valued at €200M+), Vattenfall/RWE (Norfolk Vanguard West), Siemens Gamesa, Vestas, GE Vernova, Smulders, US Wind, and Baltic Power. Haizea reported revenue of €416.9M in 2025, up from €371M in 2024 and €129M in 2020, with EBITDA of €47M in 2024 and net profit of €20M in 2025. The company is privately held and has supplemented its growth with a €35M EIB green loan (2024) to fund advanced manufacturing technology and digitalisation.

Name

Haizea Wind Group

Legal name

Haizea Bilbao S.L.

Website

https://haizeawindgroup.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Haizea Wind Group is a Spanish manufacturer of large steel structural components for offshore and onshore wind energy, producing XXL monopile foundations, towers, and transition pieces for European and US developers and turbine OEMs.

Ownership category

akta.pro rank

Product category

Wind Energy Component Manufacturing

NAICS

Fabricated Structural Metal Manufacturing (332312), Plate Work and Fabricated Structural Product Manufacturing (33231)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating) (EUAMACAE)

akta.pro secondary industries

Wind Blades, Towers & Foundations Manufacturing (EUAMACAD), Wind Blades, Towers & Foundations Manufacturing (EUAMAHAE)

Keywords

• Offshore wind towers
• XXL monopile foundations
• Wind turbine castings
• Transition piece steel
• Onshore wind towers

Headquarters

HQ city

Biscarri

HQ country

Spain

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Wind Tower and Foundation Manufacturing Contracts: Project-based manufacturing contracts for offshore wind towers, monopile foundations, and transition pieces supplied to offshore wind developers (Ørsted, Iberdrola/Scottish Power) and OEMs (Siemens Gamesa, Vestas, GE Vernova). Revenue recognized on delivery per multi-year framework agreements.
2. Onshore Wind Tower Manufacturing: Manufacture of onshore wind towers and suction sails at Haizea Tecnoaranda (Aranda de Duero), supplied to onshore wind developers and turbine manufacturers.
3. Large Wind Power Castings: Sale of large cast components (hubs, shafts, frames) produced at Haizea Grupo WEC (Itziar/Agurain) with casting, machining and surface treatment services, representing 19% of 2024 group revenue.
4. Offshore Tower Assembly Services: Assembly of internal tower elements (ladders, cables, platforms) at Haizea Breizh (Brest) for offshore wind projects such as Saint-Brieuc, Noirmoutier and Le Tréport, performed in partnership with SPIE Industrie.

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Haizea Wind Group designs, manufactures, and assembles large metal structures and cast components for the onshore and offshore wind industry. Its portfolio covers offshore wind towers, XXL monopile foundations (up to 14-15m diameter and 3,500 tonnes), onshore wind towers, large cast components (hubs, shafts, frames), and primary steel for transition pieces, produced across plants in Spain (Bilbao, Aranda de Duero, Itziar-Deba, Agurain) and France (Brest).

Product overview

Haizea Wind Group operates a multi-plant industrial platform with four primary production units: Haizea Bilbao (offshore wind towers and XXL monopile foundations at the Port of Bilbao, Spain); Haizea Breizh (offshore wind tower assembly in the Port of Brest, France); Haizea Grupo WEC (large cast components including hubs, axles, and frames in Itziar-Deba and Agurain, Spain); and Haizea Tecnoaranda (onshore wind towers and suction sails in Aranda de Duero, Spain). The portfolio spans three core business lines — wind towers, offshore foundations, and large castings — plus transition piece primary steel and suction sails as specialized offerings. The group's business units work together to cover a substantial portion of the wind energy supply chain, supporting customers including Iberdrola/Scottish Power, Ørsted, Vestas, GE Vernova, Siemens Gamesa, and Smulders.

Differentiator

Problem solved

Functional benefit

Brands

• Haizea Bilbao: Offshore wind towers and XXL monopile foundations, manufactured at the Port of Bilbao.
• Haizea Tecnoaranda
• Haizea Grupo WEC
• Haizea Breizh

Products and services

• Offshore Wind Towers Manufacture of offshore wind turbine towers including curving, welding, flange assembly, surface treatment, and assembly of internal components. Produced at Haizea Bilbao (Spain) and Haizea Breizh (Brest, France), where Haizea Breizh focuses on assembly of internal elements (ladders, platforms, cables) on tower sections delivered from Bilbao.
• Onshore Wind Towers Manufacture of onshore wind towers and suction sails at the Haizea Tecnoaranda plant in Aranda de Duero (Spain). The plant contributes 18% of 2024 group revenue.
• XXL Monopile Offshore Foundations State-of-the-art monopile production at the Port of Bilbao, with over 200,000 m² of surface area and €250M invested. Enables serial production of monopiles up to 14-15 m in diameter, 130 m in length, and up to 3,500 tonnes for next-generation 20 MW+ turbines; also capable of producing up to 1,500-tonne monopiles for 10-12 MW turbines (8-9 m diameter, 80-90 m length).
• Large Cast Components Produced through Haizea Grupo WEC, manufacturing hubs (bujes), axles (ejes), frames (bastidores), and other critical wind power components with high levels of technical quality. Includes casting (Agurain), machining and surface treatment (Itziar), and logistics (Iruña/Pamplona) units, with 300+ employees. Represents 19% of 2024 group revenue.
• Transition Pieces (Primary Steel) Haizea Bilbao manufactures the primary steel for offshore transition pieces, which connect monopile foundations to wind turbine towers. In the Baltic Power project (Polish Baltic Sea), Smulders manufactured secondary steel and assembled fully equipped transition pieces, with 70+ transition pieces supplied for the 1.2 GW project.

Quantifiable outcome

• 2025 revenue of €416.9 million (12% growth year-on-year)
• +7 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Nine partnerships are on record, tiered core, minor and flagship / core.

• Norfolk Vanguard West project (Vattenfall / RWE)coreStrategic or Co-development Partner · 23 June 2026Haizea Wind Group began manufacturing monopiles for the Norfolk Vanguard West offshore wind farm in the United Kingdom (1.4 GW capacity). Third consecutive monopile contract at Haizea Bilbao facilities since inauguration in 2024, following East Anglia 3 (Scottish Power/Iberdrola) and Hornsea 3 (Ørsted). When fully operational, Vanguard West and East combined could reach 2.8 GW supplying 2.5M+ British households.
• AITATOminorImplementation/ SI/ Consulting Partner · 28 April 2026Collaboration on the 'A Life in an Instant' safety culture initiative launched across all Haizea Wind Group facilities, part of the 2025-2028 Strategic Plan. Delivered through 54 sessions with more than 1,300 participants including Haizea employees and clients.
• CadelerminorOthers · 19 February 2026Cadeler operates the vessels transporting the 197 monopiles for Ørsted's Hornsea 3 offshore wind farm. The first six monopiles fabricated by Haizea in Bilbao were transported 960 nautical miles to Teesside in the UK.
• US Wind, Inc.coreStrategic or Co-development Partner · 28 March 2023Long-term partnership to manage and operate Sparrows Point Steel, Maryland's first permanent offshore wind factory located on nearly 100 acres of waterfront in Baltimore County. The facility will manufacture monopiles and towers for the US offshore wind industry. Haizea Wind Group brings expertise in designing, building and operating manufacturing facilities for monopile foundations and towers across the globe.
• Iberdrola / Scottish Powerflagship / coreStrategic or Co-development Partner · 15 March 2023Contract worth more than €200 million signed for Haizea Bilbao to supply 50 monopiles to support wind turbines of Iberdrola's East Anglia 3 offshore wind farm in the UK (1.4 GW, supplying 1M+ British homes). The contract was signed during the foundation stone laying of the new Haizea Bilbao facilities, representing the second major contract after Ørsted. Brings total Bilbao workload above €1.5 billion over 4 years.
• Soldarte / Somorrostro Training Centre / Bizkaia Regional Government / FVEMminorStrategic or Co-development Partner · 30 November 2022Haizea Bilbao collaborates in the Soldarte Advanced Welding Technology Centre opened in early 2023 at Haizea Bilbao facilities. The project is promoted by Bizkaia Regional Government, the Vizcaya Federation of Metal Companies (FVEM), Somorrostro Training Centre and Haizea Wind Group. Trains 225 people in welding, with 145 participants ensured a contract with Haizea Bilbao. Haizea Bilbao is currently the only company collaborating in the Soldarte project.
• Ørstedflagship / coreStrategic or Co-development Partner · 28 September 2022Signed contract for Haizea Wind Group to manufacture and supply XXL monopiles for the Hornsea 3 offshore wind farm in its new Bilbao plant. The largest single contract ever secured by Haizea, with procurement, engineering of fabrication process and fabrication all handled by Haizea. Provides certainty and stability to the business plan. Total Bilbao workload exceeds €700M for the next 4 years as a result.
• Smulders (Eiffage Métal)coreStrategic or Co-development Partner · 9 September 2022Selected Supplier Agreement under which Smulders and Haizea Bilbao will cooperate for the supply and fabrication of more than 70 transition pieces for the Baltic Power offshore wind farm in the Polish Baltic Sea. Haizea Bilbao manufactures the primary steel in Bilbao; Smulders manufactures secondary steel, assembles, outfits, coats and tests fully equipped transition pieces. Second project of cooperation between the two companies.
• SPIE Industrie & Tertiaire (SPIE Group)coreImplementation/ SI/ Consulting Partner · 13 June 2022Collaboration agreement signed for the execution of industrial activity (assembly of internal tower elements) at Haizea Breizh's facilities in the Port of Brest. The two companies are also continuing collaboration on the Îles d'Yeu and Noirmoutier and Dieppe Le Tréport offshore projects. Celebrated the production of their 100th offshore wind turbine tower in Brest in April 2025.

Scale indicators14 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• Sif Group: Dutch manufacturer of large-diameter monopile foundations for offshore wind, with a port-integrated facility at Rotterdam. Closest direct peer to Haizea Bilbao in XXL monopile production for European offshore wind farms.
• EEW Special Pipe Constructions (EEW SPC): German manufacturer of large-diameter welded steel pipes and monopile foundations for offshore wind. Direct competitor in the XXL monopile segment serving the same European offshore wind developer customer base.
• Bladt Industries: Danish manufacturer of offshore wind foundations, transition pieces, and substations with port-side facilities. Direct peer in steel fabrication for offshore wind, serving Ørsted, Vattenfall and other developers in Northern Europe.
• Steelwind Nordenham (Dillinger): German monopile manufacturer and subsidiary of Dillinger, producing heavy plate steel foundations for offshore wind. Direct competitor in the XXL monopile space, leveraging integrated plate supply from Dillinger.
• Smulders (Eiffage Métal): Belgian/Dutch steel construction company and part of Eiffage Métal, manufacturing transition pieces and offshore wind structures. Direct peer and existing Haizea partner on Baltic Power transition pieces, competing for similar scope on European offshore wind tenders.
• CS Wind Offshore: Danish offshore wind tower manufacturer (CS Wind subsidiary) with port-side facilities, supplying major OEMs. Direct peer in offshore wind tower manufacturing alongside Haizea Bilbao and Haizea Breizh.
• Welcon: Danish manufacturer of onshore and offshore wind turbine steel towers. Direct peer in the wind tower fabrication segment serving European OEMs and developers.
• Lamprell: UAE-based fabricator of offshore wind foundations and structures with new capacity targeting European projects. Emerging direct peer in offshore wind monopile and jacket foundations, expanding into Haizea's market.
• Martifer: Portuguese metalworking group with operations in wind tower manufacturing and offshore wind structures. Direct peer in European wind tower fabrication, particularly for onshore and smaller offshore projects.

Broad incumbents

• Vestas: Global #1 wind turbine OEM and a key Haizea customer. While not a direct manufacturing peer, Vestas operates in the broader wind component value chain, sets technical specifications for towers and castings, and is both customer and indirect competitor through vertical integration decisions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/haizeawindgroup
• YouTubeyoutube.com/channel/UCvv5cPpPjGSDuUsXLzRE_8g
• LinkedInlinkedin.com/company/onshore-offshore-towers-foundations

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries5 records

Funding overview

Funding rounds1 record

Investors1 record

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 Haizea Wind Group