What OEG Renewables does

OEG Renewables is the offshore wind division of OEG Energy Group, a privately held UK-based global energy solutions provider founded in 1973 and headquartered in Great Yarmouth. The company delivers mission-critical infrastructure, equipment, and technical services to offshore energy operators — primarily major offshore wind developers and oil & gas companies — across more than 65 countries on six continents. Its core asset is the world's largest fleet of DNV-certified offshore cargo carrying units (80,000+ CCUs), which it rents to operators requiring reliable logistics support at sea. Around this asset platform, OEG Renewables layers an integrated services portfolio spanning subsea services (cable services, IRM, site clearance and UXO disposal, subsea excavation, commercial diving), wind farm services (balance of plant, blade services, high voltage engineering, marine coordination, WTG services, temporary power, welfare), vessel services (crew transfer and subsea support), fabrication, OPITO-approved helicopter refuelling, and accredited training (GWO, IRATA, ICATS).

The business runs on a B2B enterprise model with direct sales to major energy companies, structured around project-based contracts and long-term service agreements. Revenue mixes recurring equipment rental and vessel services with project-driven professional services. Disclosed enterprise customers include Vestas (Japan offshore wind temporary power), Baltic Power (seabed clearance), and ScottishPower Renewables (East Anglia Two, 960 MW). Since 2021 OEG has executed 15 wind-related acquisitions, including ONRG Limited (Feb 2024) for high voltage engineering and Hybrid Resource Management Ltd (June 2026) for wind workforce solutions, signaling an aggressive buy-and-build strategy to expand capability and recurring revenue exposure in the offshore wind value chain. The company employs 1,500+ personnel and is led under the OEG Energy Group corporate umbrella alongside legacy oil & gas, industrials, and aviation lines.

Name

OEG Renewables

Legal name

OEG Energy Group

Website

https://oegrenewables.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

251–500 employees

Short description

OEG Renewables is the offshore wind division of OEG Energy Group, providing the world's largest fleet of DNV-certified offshore cargo carrying units (80,000+) and integrated subsea, wind farm, vessel, and high voltage services to major offshore energy operators across 65+ countries.

Ownership category

akta.pro rank

Product category

Offshore Wind Services and Equipment Rental

NAICS

Support Activities for Water Transportation (4883), Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing (532411)

SIC

Oil & Gas Field Services, Nec (1389), Misc Industrial & Commercial Machinery & Equipment (3590)

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), Marine & Offshore Wind BOP Construction (Foundations, Cables, Ports, Installation Support) (EUAMAFAI), Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ)

Keywords

• Offshore wind services
• Cargo carrying units
• Subsea services
• Wind farm maintenance
• Offshore equipment rental

Headquarters

HQ city

Great Yarmouth

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Offshore Equipment Rental/Lease: Rental and lease of offshore cargo carrying units (CCUs), waste handling units, tanks, and modules to energy companies for offshore project operations. OEG maintains the world's largest offshore CCU fleet with 80k+ assets.
2. Project Services: End-to-end project services including subsea services (cable services, IRM, site clearance, UXO disposal, subsea excavation), wind farm services (balance of plant, blade services, high voltage, marine coordination, WTG services), and fabrication services.
3. Vessel Services: Crew transfer vessels and subsea support vessels for offshore energy operations, including vessel inspection services.
4. Training Services: Accredited training courses including GWO, IRATA, and ICATS training for offshore wind workforce preparation.
5. Aviation Services: Helicopter refuelling training (OPITO-approved), helifuel refuelling systems, and offshore aviation services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

OEG Renewables provides specialist services and equipment for offshore wind farm development, construction, operations and maintenance. Its core offering centers on the world's largest fleet of DNV-certified offshore cargo carrying units (80k+ assets), supplemented by subsea services (cable, IRM, UXO disposal, excavation, diving), wind farm services (balance of plant, blade services, high voltage, marine coordination, WTG services), crew transfer and subsea support vessels, fabrication, OPITO-approved helicopter refuelling training, and accredited GWO/IRATA/ICATS workforce training.

Product overview

OEG is a global energy solutions provider offering integrated energy solutions across the offshore energy value chain. The company's portfolio is organized as a platform-plus-services architecture, centered on its core asset fleet of 80k+ DNV-certified offshore cargo carrying units (CCUs) — the world's largest offshore CCU fleet — complemented by comprehensive service offerings. Services include subsea services (cable services, IRM, site clearance and UXO, subsea excavation, commercial diving), wind farm services (balance of plant, blade services, high voltage, marine coordination, offshore technology, temporary power, welfare solutions, WTG services), vessel services (crew transfer vessels, subsea support vessels), fabrication, power solutions, cryogenic tanks, aviation services (helicopter refuelling training, Helifuel systems), and OEG Training (GWO, IRATA, ICATS accredited courses). The company operates across 65+ countries serving major energy companies.

Differentiator

Problem solved

Functional benefit

Products and services

• Cargo Carrying Units (CCUs) DNV-certified offshore cargo carrying units for safe and effective delivery of mission-critical items to offshore locations worldwide. OEG operates the world's largest offshore CCU fleet with 80,000+ assets, available to major offshore energy companies on rental/lease terms.
• Waste Handling Units Specialized offshore waste handling equipment for managing and processing waste materials at offshore energy facilities, offered to offshore operators on rental/lease terms.
• Tanks (including Cryogenic ISO Tanks and Jet A-1 Fuel Tanks) Cryogenic ISO tanks for secure, high-capacity handling of essential liquefied gases, plus Jet A-1 fuel tanks for aviation operations, supplied to global energy markets.
• Well Completion Solutions Comprehensive well completion services including completion load outs, test bays and workshops, completion support services, and tailored fabrication services for oil and gas operators.
• Subsea Services Complete subsea capabilities including cable services, inspection repair and maintenance (IRM), research and development, site clearance and UXO (unexploded ordnance), subsea excavation, and commercial diving services for offshore wind and energy infrastructure customers.
• Wind Farm Services Integrated services for offshore wind farm development including balance of plant, blade services, high voltage, marine coordination, offshore technology, temporary power, welfare solutions, and WTG (wind turbine generator) services.
• Vessel Services Crew transfer vessels and subsea support vessels for offshore energy operations, plus vessel inspection services.
• Fabrication Custom fabrication services for offshore energy infrastructure and equipment.
• Helicopter Refuelling Training OPITO-approved helicopter refuelling training and Helifuel refuelling systems for offshore aviation operations.
• OEG Training Workforce training services offering GWO, IRATA, and ICATS accredited courses for offshore wind professionals.
• Power Solutions Power solutions for industrial energy applications.
• Modules Modular equipment solutions for offshore energy applications.
• Waste Management Machinery Waste management machinery for industrial applications.

Quantifiable outcome

• 80,000+ assets under management as world's largest offshore CCU provider
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• Hybrid Resource ManagementcoreStrategic or Co-development Partner · 11 June 2026OEG acquired Hybrid Resource Management, an independent wind workforce solutions specialist operating across the UK and Europe. The acquisition adds more than 80 skilled technicians and specialist personnel to OEG, strengthening technical services capability and expanding presence in the growing wind operations and maintenance market. Integration into OEG is planned for Q1 2027. This is OEG's fifteenth wind-related acquisition since beginning its renewables expansion in 2021. The company's current directors Stephen Potter and Morwenna Richards will continue leading the business.
• ONRG LimitedcoreStrategic or Co-development Partner · 27 February 2024OEG Energy Group announced the acquisition of ONRG Limited, a provider of high voltage project engineering services, to its renewables division. The acquisition aims to enhance service offerings and expand market opportunities in offshore wind and energy infrastructure projects.

Scale indicators8 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• DOF Subsea: DOF Subsea provides subsea IMR, construction, and offshore vessel services globally, directly overlapping with OEG's subsea services and offshore support offerings for both wind and oil & gas clients.
• Subsea 7: Subsea 7 delivers subsea engineering, construction, and IRM services for offshore energy projects including offshore wind. Its SURF and renewables business overlaps directly with OEG's subsea and wind farm service portfolio.
• Cadeler: Cadeler operates a fleet of wind turbine installation vessels (WTIVs) for offshore wind farm construction, comparable to OEG's vessel services and wind farm support offerings. Both companies serve the same developer customers with offshore wind installation and maintenance support.
• Edison Chouest Offshore: Edison Chouest operates a large fleet of offshore support vessels serving oil & gas and offshore wind customers. Its crew transfer and subsea support vessel services directly parallel OEG's vessel offerings.

Broad incumbents

• Royal Boskalis Westminster: Boskalis is a major global dredging and offshore contractor with significant offshore wind installation and subsea service capabilities. As a broader incumbent with a wider portfolio, it competes with OEG on larger integrated offshore wind projects.
• Van Oord: Van Oord is a leading Dutch offshore contractor specializing in dredging, land reclamation, and offshore wind installation. Its offshore wind balance of plant and cable installation services overlap with OEG's wind farm services.
• Jan De Nul Group: Jan De Nul is a Belgian offshore contractor with extensive offshore wind installation and subsea cable laying capabilities. Its integrated offshore services compete with OEG's wind farm and subsea service offerings.
• TechnipFMC: TechnipFMC provides subsea engineering, construction, and services for oil & gas and increasingly offshore wind. Its subsea infrastructure capabilities overlap with OEG's cable services and subsea excavation offerings.
• Aker Solutions: Aker Solutions delivers offshore engineering, subsea production systems, and offshore wind services including mooring and floating foundations. Its energy services business competes with OEG's offshore engineering and maintenance capabilities.
• Saipem: Saipem is a global offshore engineering and construction contractor with offshore wind installation and subsea cable laying services. As a large diversified EPC, it competes with OEG for major offshore wind infrastructure contracts.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat5 records

Key highlights7 records

Customer concentration

• Xx.com/OEG_EnergyGroup
• YouTubeyoutube.com/@OneEnergyGroup
• Facebookfacebook.com/OneEnergyGroup
• LinkedInlinkedin.com/company/oeg-renewables
• Instagraminstagram.com/oneenergygroup

Compliance1 record

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&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about OEG Renewables