Cierco
Cierco Energy is a privately held, technology-independent floating offshore wind project developer developing test-and-demonstration and commercial-scale FOW projects in Scotland, Wales, California, and the Caribbean via its joint venture Floventis Energy with SBM Offshore, selling into government, utility, and offtake counterparties.
- Company typePrivate
- Founded2001
- HeadquartersAberdour, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Cierco does
Cierco Corporation (trading as Cierco Energy) is a technology-independent offshore renewable energy project developer founded in 2001 by Mikael Jakobsson and headquartered in Aberdour, Scotland. The company specialises in floating offshore wind (FOW), developing test-and-demonstration and commercial-scale projects across the UK and US. Its portfolio comprises three core assets: the Llŷr Projects — two 100MW floating offshore wind sites approximately 40 km off the Pembrokeshire coast in the Celtic Sea, being developed via the Floventis Energy joint venture with SBM Offshore; the CADEMO Project, a 60MW floating offshore wind demonstration off Santa Barbara County, California, near Vandenberg Space Force Base; and Forthwind, a Scottish demonstration site capable of testing next-generation turbines up to 20MW. Cierco complements in-house development expertise with partnership-based technology validation (PelaFlex from Marine Power Systems; Load Reduction Device feasibility with Dublin Offshore) and first-of-kind stakeholder frameworks (a Project Labor Agreement with California's Building Trades, a Community Benefits Agreement with the Santa Ynez Band of Chumash Indians, and a Mitigation Agreement with the US Department of Defense).
The company's core offerings are project development services — site development, project management, engineering, supply chain optimisation, financing strategy, and stakeholder engagement — together with operations and maintenance services for operational offshore wind sites. Revenue mechanics are not publicly disclosed but appear to combine development fees, project equity stakes, and long-term power purchase agreements in a multi-year, enterprise-only sales motion targeting governments (The Crown Estate, Crown Estate Scotland, California State Lands Commission, US DoD), utilities and community choice aggregators (California Community Power), and supply chain partners. Pricing is bespoke, negotiated contract-by-contract.
Customer segments are vertical, led by government and regulatory bodies and utilities/energy companies, with adjacent segments covering local communities, indigenous groups, and supply chain partners. The company operates from offices in Aberdour (Scotland, UK HQ), Pembroke Dock (Wales), and Palm Springs, California, with a regional footprint also extending to the Caribbean via an MOU with Arcalis Energy in March 2025. Cierco is private, owned by its founder and management team (with SBM Offshore as JV partner in Floventis Energy), and operates with 11-50 employees.
Cierco firmographics
Firmographics- Name
- Cierco
- Legal name
- Cierco Corporation
- Website
- https://ciercoenergy.com
- Company type
- Private
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Cierco Energy is a privately held, technology-independent floating offshore wind project developer developing test-and-demonstration and commercial-scale FOW projects in Scotland, Wales, California, and the Caribbean via its joint venture Floventis Energy with SBM Offshore, selling into government, utility, and offtake counterparties.
- Ownership category
- akta.pro rank
Cierco industry classification
Industry- Product category
- Offshore Wind Project Development
- NAICS
- Wind Electric Power Generation (221115), Environmental Consulting Services (54162)
- akta.pro primary industry
- Offshore Wind Project Development & Leasing (EUAMACAB)
- akta.pro secondary industries
- Advanced Wind Technology R&D (Floating Offshore, Airborne Wind, New Rotor/Blade Concepts) (EUAMAOAB), Environmental & Permitting Compliance During Construction (Erosion Control, Wildlife Mitigation, Monitoring) (EUAMAFAM)
Keywords
Where Cierco is headquartered
LocationHeadquarters
- HQ city
- Aberdour
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
Cierco business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Project Development Services: Offshore wind project development including site development, project management, engineering expertise, and financing strategies. Revenue generated through development fees, project equity, and long-term power purchase agreements.
- Operations and Maintenance Services: Comprehensive operations and maintenance services to operational offshore wind sites, ensuring long-term success and efficiency.
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Cierco product offering
Product offeringCore offering
Cierco is a technology-independent offshore renewable energy project developer specializing in floating offshore wind. The company develops, finances, and delivers test and demonstration and commercial-scale floating wind projects across the UK and US, covering site development, engineering, project management, supply chain coordination, and stakeholder engagement. Its portfolio includes the Llŷr Projects in the Celtic Sea, the CADEMO Project in California, and the Forthwind demonstration site in Scotland.
Product overview
Cierco is an offshore renewable energy project developer offering a portfolio of floating offshore wind projects across the UK and US markets. The company operates three core projects: the Llŷr Projects (Llŷr 1 and Llŷr 2) in Wales' Celtic Sea (two 100MW sites), the CADEMO Project in California (60MW), and the Forthwind demonstration site in Scotland (up to 20MW). These projects collectively target floating offshore wind technology development, testing new foundation and mooring technologies at commercial scale, with the goal of accelerating the global transition to green power generation from offshore renewable energy.
Differentiator
Problem solved
Functional benefit
Products and services
- Llŷr Projects (Llŷr 1 and Llŷr 2)
Quantifiable outcome
- 200MW of clean energy capacity from Llŷr projects (200,000 homes)
- +4 more outcomes
Companies that use Cierco
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles2 records
Cierco technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Cierco partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core, flagship and minor.
- Marine Power Systems (MPS)coreStrategic partnership through Memorandum of Understanding (MoU) to accelerate deep-water offshore wind technology deployment in the Celtic Sea. Brings together Cierco's project development expertise with MPS's PelaFlex technology solutions. PelaFlex is designed for high performance and cost-effectiveness in deep water, reducing weight, material use, and installation timelines while supporting regional supply chain through modular design.
- Arcalis EnergyflagshipMemorandum of Understanding to advance renewable energy projects in the Caribbean. Cierco provides project development expertise while Arcalis contributes local market knowledge, regulatory landscape understanding, and community engagement capabilities. Partnership aims to develop projects that fit the natural environment and embed benefits within local communities.
- California Community PowerflagshipMemorandum of Understanding to facilitate advancement of CADEMO project as California's first offshore wind project. CC Power, a Joint Powers Authority representing nine California Community Choice Aggregators, will collaborate on power purchase agreements and community stakeholder engagement. Project targets 2028 commercial operation.
- ORE Catapult (Offshore Renewable Energy Catapult)minorF4OR (Fit 4 Offshore Renewables) Wales programme partnership. Floventis Energy supports ORE Catapult in delivering supply chain readiness programme for Welsh companies. First programme exclusively tailored for floating wind market, supporting local companies in bidding for floating offshore wind opportunities.
- Santa Ynez Band of Chumash IndianscoreCommunity Benefits Agreement for CADEMO project. Creates collaborative process for tribal cultural and environmental engagement with offshore wind development. Includes provisions for Traditional Cultural Landscape study, apprenticeship programs, and support for Chumash Heritage National Marine Sanctuary designation.
- U.S. Department of DefensecoreMitigation Agreement enabling CADEMO project operation near Vandenberg Space Force Base. First such agreement for US military on West Coast. Creates de-confliction protocols for turbines operating in airspace used by space launches. Sets precedent for offshore wind expansion near military installations.
- State Building and Construction Trades Council of CaliforniacoreProject Labor Agreement for CADEMO offshore wind project. First-of-its-kind labor agreement covering construction, assembly, installation, and maintenance with union workforce. Sets standard for California's offshore wind industry with 157 affiliated unions representing 500,000 members statewide.
- SBM OffshorecoreJoint venture 'Floventis Energy' for development of floating wind projects including Llŷr 1, Llŷr 2, and CADEMO. SBM Offshore brings expertise in floating platform technology and fabrication capabilities. The partnership leverages 20 years of UK experience in fixed-bottom offshore wind to transition to deep-water floating wind.
- Darwin CentreminorEducation partnership for STEM outreach in Pembrokeshire. Bespoke offshore wind design challenges for schoolchildren including overview of climate change, renewable energy benefits, and future job opportunities. Workshops focus on platform design and construction or climate change and wind turbine design.
- State Building and Construction Trades Council, Cal Poly San Luis ObispominorHigh Road Training Partnership (HRTP) for California offshore wind awarded by California Workforce Development Board. Three-year grant to explore options for maximising in-state unionised jobs and community benefits from CADEMO project and statewide offshore wind industry.
Scale indicators12 records
Recent moves6 records
Expansion highlights6 records
Cierco competitors and assessment
Company assessmentDirect peers
- Equinor: Equinor is the world's leading floating offshore wind developer through its Hywind platform (Hywind Scotland, Hywind Tampen) and has active projects in the Celtic Sea and California. It directly competes with Cierco for floating wind lease rights, offtake contracts, and supply chain capacity.
- Hexicon: Hexicon is a Swedish floating offshore wind developer pioneering multi-turbine floating platforms. It operates in similar early-stage floating wind markets and pursues technology-agnostic, partnership-driven development models comparable to Cierco.
- Aker Offshore Wind: Aker Offshore Wind develops floating wind projects based on the Hywind concept and semisubmersible platforms, targeting Scotland and other deep-water markets. It directly competes with Cierco for Celtic Sea capacity and Scottish seabed rights.
- BlueFloat Energy: BlueFloat Energy is a specialist floating offshore wind developer with active projects in the Celtic Sea (e.g., Valorous, Erebus) competing directly with Cierco for seabed leases in Wales and is similarly technology-independent.
- Principle Power: Principle Power is the developer of the WindFloat floating foundation, a competing technology platform to Marine Power Systems' PelaFlex that Cierco may deploy. It serves the same floating offshore wind market and often partners with utilities on demonstration projects.
- Ocean Winds: Ocean Winds is the offshore wind joint venture between EDP and Engie, with significant floating wind ambitions including Celtic Sea projects. It is a direct competitor for Crown Estate seabed leases and a comparable technology-independent floating wind developer with multi-GW pipelines.
Regional players
- Masdar: Masdar is a UAE-based renewable energy developer investing in UK and European floating wind projects. While based in a different geography, it overlaps with Cierco's Celtic Sea interests and pursues comparable technology-agnostic, partnership-driven models.
Broad incumbents
- Copenhagen Infrastructure Partners (CIP): CIP is a major renewable energy fund manager with significant floating wind exposure, including the Pentland Floating Offshore Wind Farm. It competes with Cierco in floating wind project development and brings institutional capital at much larger scale.
- Iberdrola: Iberdrola, through Avangrid and its ScottishPower subsidiary, is a leading UK and US offshore wind developer with growing floating wind interest. It is a broader incumbent competing with Cierco for project sites, customers, and supply chain.
- RWE Renewables: RWE is one of the world's largest offshore wind developers and is actively pursuing floating wind opportunities in the UK and US. It overlaps with Cierco in target markets and competes for offtake, lease rights, and supply chain capacity.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Cierco social profiles
Digital presenceCierco financial estimates
Financial estimateRevenue estimate
Valuation estimate
Cierco leadership team
Management profileNumber of profiles
Profiles8 records
Cierco subsidiaries and ownership
Company hierarchySubsidiaries1 record
Cierco funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Cierco 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 Cierco
What does Cierco do?
Cierco is a technology-independent offshore renewable energy project developer specializing in floating offshore wind. The company develops, finances, and delivers test and demonstration and commercial-scale floating wind projects across the UK and US, covering site development, engineering, project management, supply chain coordination, and stakeholder engagement. Its portfolio includes the Llŷr Projects in the Celtic Sea, the CADEMO Project in California, and the Forthwind demonstration site in Scotland.
Is Cierco a public or private company?
Cierco is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Cierco founded?
Cierco was founded in 2001. It employs 11 to 50 people.
Where is Cierco based?
Cierco is headquartered in Aberdour, United Kingdom, in the Europe region.
How does Cierco make money?
Two revenue lines are on record. Project Development Services are the primary driver. The others are operations and Maintenance Services.
Who are Cierco's main competitors?
Direct peers on record are Equinor, Hexicon, Aker Offshore Wind, BlueFloat Energy, Principle Power and Ocean Winds. Masdar is listed as a regional player. Broad incumbents are Copenhagen Infrastructure Partners (CIP), Iberdrola and RWE Renewables.
Does Cierco have an API?
No public API is recorded for Cierco.
What industry is Cierco in?
Cierco's product category is Offshore Wind Project Development. Its primary akta.pro industry code is EUAMACAB, Offshore Wind Project Development & Leasing, with a secondary code of EUAMAOAB, Advanced Wind Technology R&D (Floating Offshore, Airborne Wind, New Rotor/Blade Concepts). Its NAICS code is 221115.