What Offshore Wind Consultants does

OWC (Offshore Wind Consultants Limited), founded in 2011 and headquartered in London, is a renewable energy technical advisory and consultancy firm operating as a wholly-owned subsidiary of ABL Group ASA (Oslo Stock Exchange: ABL). The firm provides technical due diligence, owner's engineering, asset management, environment and consents, technical studies, geoscience, and engineering design services across seven renewable verticals: fixed offshore wind, floating offshore wind, onshore wind, solar PV (ground-mounted, rooftop, and floating), battery energy storage, hydrogen, and wave and tidal energy. Its primary clients are renewable energy developers and investors, asset owners and operators, government and regulatory bodies, and offshore wind EPCI contractors requiring independent technical validation, project risk mitigation, and advisory from concept through operations.

The company has documented experience on 330+ offshore wind projects, 50+ floating wind projects, 71 GW of onshore wind capacity, 220+ solar PV projects (including 80+ floating solar projects representing more than 2 GWp), 25+ GW of battery energy storage projects, 40+ hydrogen projects, and 300+ GW of total wind capacity across 44+ countries. OWC's technical differentiation rests on deep domain expertise, internal design tools and methodologies (including contribution to the DNVGL RP 0584 recommended practice for floating solar mooring and anchoring), and senior staff with backgrounds at Vatenfall, DNV, Wood plc, Ørsted, Octopus Energy Generation, RPS Group, and BP. Operations are delivered through a network of country offices — including London (HQ), Aarhus, Nantes, Madrid, Warsaw, Dublin, Exeter, Brighton, Ho Chi Minh City, Hanoi, Taipei, Seoul, Singapore, Tokyo, Sydney, Auckland, and Rio de Janeiro — embedded within ABL Group's 60+ office global network.

OWC operates a project-based professional services model, generating revenue through consulting engagements quoted by scope, complexity, and duration. Go-to-market is enterprise field sales combined with thought-leadership content marketing (white papers, technical blogs), event participation (APAC Wind Energy Summit, Seanergy, Global Offshore Wind), and cross-sell through its parent ABL Group, which operates four integrated brands (ABL, OWC, Longitude, AGR) covering marine, engineering, digital, and energy advisory. In July 2025, Innosea (founded 2012, acquired by ABL Group in 2021) was fully rebranded and integrated under OWC, consolidating marine renewable expertise and expanding the firm's presence in France; Innosea's structural design and ocean engineering teams were concurrently integrated into sister company Longitude. OWC is a private company; no revenue figures, contract values, or pricing terms are publicly disclosed.

Name

Offshore Wind Consultants

Legal name

Offshore Wind Consultants Limited

Website

https://owcltd.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

51–100 employees

Short description

OWC is a London-headquartered renewable energy technical advisory and consultancy firm serving offshore wind, solar PV, battery storage, hydrogen, and wave/tidal developers, investors, and operators across 44+ countries, with 330+ offshore wind projects delivered as the renewables arm of ABL Group ASA.

Ownership category

akta.pro rank

Product category

Renewable Energy Consulting

NAICS

Engineering Services (54133), Environmental Consulting Services (54162)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Wind Farm EPC & Balance of Plant Construction (Civil, Electrical, Substations) (EUAMACAF)

akta.pro secondary industries

Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB), Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets) (EUAEAGAO), Environmental & Permitting Execution Services (Erosion Control, Habitat Mitigation, Compliance) (EUAEADAL)

Keywords

• Offshore wind consultancy
• Renewable energy advisory
• Owner's engineering services
• Technical due diligence
• Geoscience consulting

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices17 records

Markets served

GTM type

B2B

Offering type

Services

Revenue model

1. Technical Advisory and Consultancy Services: OWC generates revenue through providing professional consulting services including technical due diligence, owner's engineering, geoscience services, market studies, and engineering design services. Revenue is generated through project-based engagements with renewable energy developers, investors, and operators across the project lifecycle from concept to operations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

OWC is a multi-disciplinary renewable energy consultancy that provides technical advisory, owner's engineering, technical due diligence, geoscience, and engineering services across offshore wind, onshore wind, solar PV, floating solar, battery energy storage, hydrogen, and wave/tidal projects. The firm supports renewable energy developers, investors, and asset owners from project concept through operations, leveraging deep domain expertise and a global footprint spanning 44+ countries.

Product overview

OWC operates as a multi-disciplinary renewable energy consultancy offering a comprehensive suite of technical advisory services. The portfolio includes Technical Due Diligence, Owner's Engineering, Offshore Wind Asset Management, Environment and Consents, Technical Studies (R&D, market studies, cable consultancy, electrical engineering, geoscience, wind measurement, WTG engineering, foundation engineering), Engineering (structural and ocean), and Geoscience services. OWC serves multiple market sectors: Wind (fixed offshore, floating offshore, onshore), Solar (floating, ground-mounted, rooftop), Energy Storage (BESS), Wave and Tidal, and Hydrogen. Formerly separate entities including Innosea (now rebranded as OWC in 2025) have been consolidated into the unified OWC brand.

Differentiator

Problem solved

Functional benefit

Products and services

• Technical Due Diligence

Quantifiable outcome

• 330+ offshore wind projects completed
• +3 more outcomes

Named customers3 records

Segments4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core.

• EU-SCOREScoreStrategic or Co-development PartnerEU-SCORES is a European research project demonstrating multi-source energy parks. OWC is contributing to this project which aims to demonstrate the benefits of combining offshore floating solar (3 MW island) with existing bottom-fixed offshore wind farms off the coast of Belgium. This project showcases hybrid renewable energy integration and complementary production profiles.
• LongitudecoreStrategic or Co-development PartnerLongitude is ABL Group's design and engineering branch providing independent design and analysis consultants across marine markets including renewables, oil & gas, maritime, small craft, defence, and infrastructure. OWC refers clients for detailed engineering and design work, and Longitude leverages OWC's technical advisory relationships. Structural, hydrodynamics, and foundations engineering teams from Innosea (now OWC) have integrated into Longitude.
• ABL GroupcoreStrategic or Co-development PartnerABL Group (OSE: ABL Group ASA) is the parent company of OWC, operating under four brands: ABL, OWC, Longitude, and AGR. ABL Group is a leading independent global consultancy delivering energy, marine, engineering and digital solutions. OWC provides renewable energy technical advisory as part of the group's integrated offering covering technical advisory, engineering and design, marine operations, and marine warranty.

Scale indicators10 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• BVG Associates: UK-based specialist offshore wind and marine renewable energy consultancy providing owner's engineering, technical due diligence, and market advisory to developers and investors. Closest direct competitor to OWC in offshore wind technical advisory, with a similar service mix and client base of project developers and lenders.
• K2 Management: Danish-headquartered wind energy technical advisory firm offering owner's engineering, lender's advisory, and due diligence across onshore and offshore wind. Direct competitor to OWC with comparable service lines and a strong European and APAC footprint in wind-specific advisory.
• COWI: Major Danish engineering consultancy with one of the largest offshore wind engineering practices globally, providing structural design, geotechnical, and owner's engineering services. Competes with OWC on multi-disciplinary engineering and design for offshore wind foundations, cables, and substations.
• Wood: Global engineering and consulting firm with a substantial offshore wind and energy transition practice offering owner's engineering, technical advisory, and EPC support. Competes with OWC across offshore wind due diligence, geoscience, and engineering design engagements.
• Mott MacDonald: Global engineering, management, and development consultancy with a long-established renewable energy practice covering offshore wind, solar, and energy storage advisory. Competes with OWC on owner's engineering, due diligence, and environmental/consents services for renewable projects.
• Worley: Global engineering and advisory firm with renewable energy and offshore wind capabilities, providing owner's engineering, design, and project services. Competes with OWC on multi-disciplinary engineering services for offshore wind and energy transition projects.
• RPS Group: UK-based consultancy (now part of Tetra Tech) providing environmental, engineering, and technical advisory services to renewable energy developers, including offshore wind, solar, and energy storage. Overlaps with OWC on environment and consents, geoscience, and owner's engineering.
• Arup: Global engineering and design consultancy with renewable energy and offshore wind practice offering owner's engineering, technical advisory, and design services. Competes with OWC for owner's engineering and technical advisory mandates on offshore wind and grid infrastructure projects.

Broad incumbents

• DNV: Global energy advisory, certification, and standards body with deep renewable energy practice including technical due diligence, project certification, and energy advisory. Competes with OWC in lender's advisory and technical due diligence while also setting industry standards (e.g., DNVGL standards that OWC's work references).
• WSP: Global professional services firm with a significant environment and energy advisory practice serving renewable energy developers and investors. Overlaps with OWC on environmental impact assessments, owner's engineering, and technical advisory across wind, solar, and energy storage.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/owc_news
• LinkedInlinkedin.com/company/offshorewindconsultants

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 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 Wind Consultants