What Innosea does

Innosea was a French marine engineering and R&D consultancy founded in 2012 and headquartered in Nantes, specializing in offshore wind structural design, ocean engineering, and technical advisory for renewable energy projects. Its core offering covered the full lifecycle of offshore wind assets — from concept and detailed design through installation engineering — alongside geoscience, foundation engineering, cable consultancy, electrical engineering, and integrated loads analysis. As of July 2025, Innosea was fully integrated into ABL Group and rebranded as OWC (Offshore Wind Consultants), the renewable energy consultancy arm of the group, with Innosea's structural design and ocean engineering teams consolidated into ABL's engineering branch, Longitude.

Under the OWC platform, the combined entity operates as a professional services consultancy delivering technical due diligence, owner's engineering, asset management, environment and consents, technical studies, structural and ocean engineering, and geoscience services to offshore wind, floating offshore wind, onshore wind, solar (floating, ground-mounted, rooftop), energy storage, hydrogen, and wave and tidal developers and operators. The firm claims 200+ employees, operations across 44+ countries, and 350+ GW of cumulative wind energy project experience.

Revenue is generated through project-based consultancy engagements priced on a quote, per-project basis, with no publicly disclosed rates or standardized pricing tiers. The go-to-market is enterprise field sales — direct client engagement via regional directors and country managers (e.g., Will Cleverly, CEO of OWC; Hakim Mouslim, Regional Director for Europe; Mattias Lynch, Country Manager for France). The customer base comprises enterprise developers, operators, and investors in renewable energy, served globally through OWC's own offices and ABL Group's broader international infrastructure. ISO 9001, 14001, and 45001 certifications are held at the ABL Group parent level.

Name

Innosea

Legal name

OWC

Website

https://innosea.fr

Company type

Private

Founded year

2012

Operating status

Acquired

Headcount range

11–50 employees

Short description

Innosea is a French marine engineering consultancy specializing in offshore wind structural design and ocean engineering. As of July 2025, it has been fully integrated into ABL Group as OWC, serving renewable energy developers and operators across more than 44 countries.

Ownership category

akta.pro rank

Product category

Renewable Energy Engineering Consultancy

NAICS

Engineering Services (54133), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Asset Management & Owner’s Engineering (Lifecycle Strategy, Budgeting, Technical Due Diligence) (EUAMAGAJ)

akta.pro secondary industries

Wind Operations, Maintenance & Asset Management (Scheduled/Unscheduled) (EUAMACAH), Wind Resource Assessment & Energy Yield Analytics (Met Masts, LiDAR, Modeling) (EUAMACAJ), Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating) (EUAMACAE)

Keywords

• Offshore wind engineering
• Renewable energy consulting
• Owner's engineering advisory
• Structural engineering services
• Geoscience geotechnical services

Headquarters

HQ city

Nantes

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Technical Advisory and Consultancy Services: Professional consulting services providing technical expertise to renewable energy projects across wind, solar, energy storage, hydrogen, and wave/tidal sectors. Revenue is generated through project-based engagements involving technical due diligence, owner's engineering, and specialized engineering studies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Innosea is a renewable energy technical advisory and engineering consultancy that delivers services for offshore wind, solar, energy storage, hydrogen, and wave/tidal projects. Its offerings span technical due diligence, owner's engineering, structural and ocean engineering, geoscience, foundation design, cable and electrical engineering, environmental assessments, and offshore wind asset management. Services are delivered across the full project lifecycle from concept through detailed design, installation, and operations.

Product overview

OWC (formerly Innosea) operates as a renewable energy consultancy platform offering technical advisory and consultancy services across multiple sectors including wind (fixed offshore, floating offshore, onshore), solar (floating, ground mounted, rooftop), energy storage, wave and tidal, and hydrogen. The company is organized into distinct service modules: Technical Due Diligence and Owner's Engineering provide project validation and oversight; the Technical Studies module covers specialized areas such as cable consultancy, electrical engineering, wind measurement, WTG engineering, foundation engineering, and integrated loads analysis; the Engineering module delivers structural and ocean engineering; the Geoscience module provides geotechnical engineering, geospatial analysis, geohazard assessment, and ground modeling; and Environment and Consents handles regulatory compliance. Longitude, a separate sub-brand under ABL Group, focuses specifically on offshore wind design from concept through installation. The combined entity supports over 350 GW of wind energy across 44+ countries.

Differentiator

Problem solved

Functional benefit

Products and services

• Technical Due Diligence Standalone technical assessment and validation service for renewable energy projects, providing independent technical review and risk evaluation for developers, operators, and investors.
• Owner's Engineering Engineering oversight and project management services for renewable energy asset owners during construction and operations, acting as the owner's representative on technical matters.
• Offshore Wind Asset Management Standalone asset management service specifically designed for offshore wind installations, covering operational performance, technical risk, and lifecycle management of wind assets.
• Environment and Consents Environmental assessment and regulatory consent service for renewable energy projects, supporting permitting, environmental impact studies, and consents management.
• Longitude Offshore Wind Design Consolidated offshore wind design service covering structural design and ocean engineering from concept through detailed design to installation engineering, delivered through Longitude (ABL Group's engineering branch) following Innosea's July 2025 integration.

Quantifiable outcome

• 350+ GW of wind energy capacity supported across global projects
• +1 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• ABL GroupcoreOthers · 1 July 2025Innosea fully integrated into ABL Group as of July 2025, rebranding as OWC - the renewable energy consultancy branch of ABL Group. The integration creates a global powerhouse in technical advisory and consultancy supporting renewable energy and energy transition technologies from concept to operations.
• Longitude (ABL Group Engineering Branch)coreStrategic or Co-development Partner · 1 July 2025Innosea's structural design and ocean engineering teams have integrated into ABL Group's design and engineering branch, Longitude. This consolidates the global offering in offshore wind design from concept to detailed to installation engineering, combining Innosea's specialized expertise with Longitude's existing engineering capabilities.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• COWI: Danish-headquartered engineering consultancy with one of the largest offshore wind technical advisory practices globally (foundation design, loads analysis, owner's engineering). Directly comparable to Innosea/OWC given overlapping offshore wind design expertise and similar European base.
• Ramboll: Danish engineering consultancy with one of the largest dedicated offshore wind practices globally, including structural design, foundation engineering, and due diligence. Highly comparable in geography, services, and target customer base.

Broad incumbents

• Sweco: European engineering consultancy with substantial Nordic offshore wind expertise, including foundation design, site assessment, and owner's engineering. Regional incumbent with strong overlap with OWC's European customer base.
• Arup: Global engineering consultancy with established offshore wind practice covering design, advisory, and energy transition work. Comparable to OWC across multiple renewable energy sectors with strong overlap in floating wind and offshore design.
• DNV: Independent assurance and risk management provider with a major Energy (renewables) advisory division offering technical due diligence, owner's engineering, and energy advisory services. Competes with OWC in due diligence, certification, and offshore wind assurance work.
• WSP Global: Canadian-listed global professional services firm with a major offshore wind advisory and engineering practice (especially in Europe post-Wood E&I acquisitions). Broad incumbent offering comparable owner's engineering and design services.
• Worley: Australian-listed global energy engineering consultancy with substantial offshore wind advisory, project services, and energy transition offerings. Broad incumbent competing with OWC across multiple renewable energy verticals.
• Mott MacDonald: UK-headquartered engineering consultancy with significant offshore wind owner's engineering and technical advisory, serving developers, lenders, and asset owners across project lifecycles. Direct overlap in technical due diligence and owner's engineering services.
• Wood (Wood Group): Global engineering and consulting major with extensive offshore wind project services spanning design, owner's engineering, and asset management across the project lifecycle. A larger incumbent offering comparable services as part of a broader energy/industrial portfolio.

Others

• ABL Group (parent): Oslo-listed parent company of OWC/Innosea, providing marine, offshore, and energy consultancy; the broader ABL platform complements OWC and Longitude services but the integration means it is parent rather than pure peer. Comparable technical advisory and energy/marine engineering from a portfolio perspective.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

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

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Innosea