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Muehlhan GroupMuehlhan Group
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Full-scope wind turbine services

Powering performance
across global wind projects

News
MWS acquires HVDC installation business from Einar Øgrey
27 days ago
News
MWS acquires Canada-based AC883 Renewable Energy Services
about 1 month ago
News
MWS acquires Germany-based specialist in logistics and oil exchange, Lonsdorfer
9 months ago
Your preferred wind turbine installation & service partner

Muehlhan Wind Service specializes in onshore and offshore wind turbine maintenance, repair, and installation worldwide. We partner with OEMs and wind farm owners to ensure optimal performance, delivering safe, high-quality, and innovative solutions that keep renewable energy moving forward. With a presence in +35 countries worldwide, we’re here to make a difference for you.

Explore our worldwide servicesExplore our worldwide services
Defined by
Our values
Our legacy

Our values define us and shape everything we do: from excellence and integrity to respect and reliability. These principles empower our teams to deliver safely, consistently, and with pride everywhere we operate.

Learn more about our valuesLearn more about our values
Discover what we do best
All divisions15
All divisions15
Installation Services3
Installation Services3
Main Services4
Main Services4
Electrical Services3
Electrical Services3
Specialty Services5
Specialty Services5
Business Unit
Onshore Installation
Services
Full-scope delivery, pre-assembly, onshore installation, electrical and mechanical work, craning, component handling, load management
Regions
CAN, NCE, BRI, AUS
Business Unit
Offshore Installation
Services
Full-scope offshore installations, pre-assembly, offshore installation, transportation, craning, electrical and mechanical expertise
Regions
USA, NCE, BRI, MED, EAS
Business Unit
Major Component Exchange
Services
Major component exchange, retrofits, repowering, decommissioning, heavy lifting and transportation
Regions
CAN, USA, NCE, BRI, MED, EAS
Business Unit
Manpower Solutions
Services
Manpower rent-out, installation supervisors (SM, QA, TA, CM), complete onshore and offshore turbine installations, site management, site service technicians, offshore and commissioning technicians
Regions
CAN, USA, NCE, BRI, MED, IBR, EAS, AUS
Business Unit
Blades
Services
Expertise in blade repairs, blade inspection, blade upgrades & retrofits (LPS, PCU, LEP), blade cleaning, blade training
Regions
CAN, USA, NCE, BRI, MED, IBR, EAS, AUS
Business Unit
Service
Services
Scheduled service, pre-commissioning, inspections, torque & tension, snagging/punch list, retrofits and upgrades
Regions
CAN, USA, NCE, BRI, MED, IBR, EAS, AUS
Business Unit
Statutory Inspections
Services
Statutory inspections for regulatory compliance, TMSE inspections and certifications, repairs, annual maintenance on service lifts, full ISO 17020-certified services
Regions
NCE, BRI, MED, IBR,
Business Unit
Medium & High Voltage
Services
Troubleshooting, HV/MV service, installation & commissioning, maintenance & repair, testing & inspection
Regions
USA, NCE, BRI, MED, IBR, EAS
Business Unit
Electrical Commissioning
Services
Installation & commissioning​, troubleshooting​, manufacturing support​, repowering​
Regions
USA, NCE, BRI, MED, IBR, EAS
Business Unit
Electrical Consulting
Services
Development (from concept to completion with specialized electrical consulting services), manufacturing (on-factory electrical consulting and quality assurance support), remote control (24/7 wind turbine remote monitoring and control)
Regions
USA, NCE, BRI, MED, IBR, EAS
Business Unit
Paint & Steelwork
Services
Steel structure paint inspection, steel structure paint repair, corrosion repair, steel structure cleaning, steel structure repair/welding, large correctives & retrofits, inbound inspections, QC checks, cleaning, and repair of transport damage, specialized offshore support
Regions
NCE, BRI, MED, EAS, AUS
Business Unit
Special Projects
Services
Oil & hose exchange, large correctives & retrofits, electrical & mechanical installations, borescope inspection, end-of-warranty inspections, commissioning & completion support, securing the site in case of fire damage
Regions
CAN, USA, NCE, BRI, MED, EAS, AUS
Business Unit
Welding & Engineering
Services
Repair solutions incl. 2D/3D design, method planning, materials, risk assessment, welding, machining & structural repair, testing & documentation, inspection & NDT analysis, yaw ring and pitch repair, fabrication & workshop support
Regions
NCE, BRI, MED
Business Unit
Oil Exchange
Services
Oil and coolant change gearbox, hydraulic oil exchanges incl. glycol coolant replacements, oil cleaning, filtration and drainage, oil delivery and waste management, documentation and quality assurance
Regions
NCE, BRI, MED, IBR
Business Unit
Factory Work
Services
Metallizing and anti-corrosion treatment, manual and automated paint application, surface preparation, custom coatings, complex surface treatment, project management and quality control
Regions
CAN, USA, NCE, BRI, MED, IBR, EAS, AUS
Explore

The

MWS

family

Based in Porto, Portugal, Outside Academy has been delivering certified safety and technical training for wind turbine technicians since 2012. Its renovated training center features modern indoor facilities and simulators that replicate real-life industrial and wind turbine scenarios.
Deliver your projects with an untapped pool of renewable experts. Best in class, affordable, bespoke project manpower services to the biggest names in the industry.
Founded in the UK, TRG Wind quickly established itself as a trusted provider of supervision, statutory inspection, and installation services for wind turbine manufacturers and operators. Known for its high standards of quality and safety, TRG Wind supported major OEMs across Europe, South Africa, and beyond, helping ensure the reliable construction, commissioning, and maintenance of onshore and offshore wind assets.
A pioneer in oil exchange technology Based in the UK, Renewable Oil Services (ROS) is the region’s largest supplier of oil products and oil exchange services for the wind turbine industry, serving both onshore and offshore markets across the UK and Ireland. Known for precision, reliability, and technical excellence, ROS ensures wind turbines perform at their best throughout their lifecycle.
A heritage built on movement. Founded in 1945 in Germany, Peter Lonsdorfer GmbH & Co. KG began as a small haulage company and grew into one of Europe’s leading specialists in logistics and oil exchange for the wind industry.
Since its establishment in 2018, Energy Wind & Renewables Ltd. has grown into a trusted, full-service wind energy solutions provider across North America. EWR is known for delivering safe, high-quality services spanning the entire turbine lifecycle — from installation and heavy-lift crane operations to maintenance, blade repair, and component upgrades.
From its early beginnings, ProWind grew from a small, close-knit team into a nationwide operation. The company earned recognition for its technical expertise, high safety standards, and practical approach to getting the job done. These values are closely aligned with those of Muehlhan Wind Service (MWS).
Since its founding, EPiK Energy has been a trusted name in North America’s renewable energy sector, delivering dependable manpower, equipment, and project management solutions for wind energy construction and maintenance. With over a decade of experience and more than 2.5 GW of installed wind energy capacity, EPiK built a reputation for reliability, efficiency, and a strong safety culture.
Founded in 2009 by a team of five electrotechnical engineers, Endiprev established itself as a trusted specialist in commissioning, medium- and high-voltage (MV/HV) services for the wind energy industry. Over the years, the company completed more than 500 projects across 35 countries, building a strong reputation for precision, safety, and technical excellence in both onshore and offshore environments.
Founded in 2018 by CEO Simon Øland near Lindø Shipyard in Munkebo, Denmark, 3WIS established itself as a specialist in welding repair and structural steel solutions for wind, energy and marine industries. Through the combination of engineering, inspection (including NDT) and welding, 3WIS delivers turnkey repair solutions to heavy steel structures, with a focus on extending asset life, reducing downtime and maintaining OEM-level standards.
AC883 Renewable Energy Services is a Canada–based wind service provider supporting turbine owners and asset managers in optimizing performance, reliability and long-term asset value.
Explore

The

MWS

family

Based in Porto, Portugal, Outside Academy has been delivering certified safety and technical training for wind turbine technicians since 2012. Its renovated training center features modern indoor facilities and simulators that replicate real-life industrial and wind turbine scenarios.
Deliver your projects with an untapped pool of renewable experts. Best in class, affordable, bespoke project manpower services to the biggest names in the industry.
Founded in the UK, TRG Wind quickly established itself as a trusted provider of supervision, statutory inspection, and installation services for wind turbine manufacturers and operators. Known for its high standards of quality and safety, TRG Wind supported major OEMs across Europe, South Africa, and beyond, helping ensure the reliable construction, commissioning, and maintenance of onshore and offshore wind assets.
A pioneer in oil exchange technology Based in the UK, Renewable Oil Services (ROS) is the region’s largest supplier of oil products and oil exchange services for the wind turbine industry, serving both onshore and offshore markets across the UK and Ireland. Known for precision, reliability, and technical excellence, ROS ensures wind turbines perform at their best throughout their lifecycle.
A heritage built on movement. Founded in 1945 in Germany, Peter Lonsdorfer GmbH & Co. KG began as a small haulage company and grew into one of Europe’s leading specialists in logistics and oil exchange for the wind industry.
Since its establishment in 2018, Energy Wind & Renewables Ltd. has grown into a trusted, full-service wind energy solutions provider across North America. EWR is known for delivering safe, high-quality services spanning the entire turbine lifecycle — from installation and heavy-lift crane operations to maintenance, blade repair, and component upgrades.
From its early beginnings, ProWind grew from a small, close-knit team into a nationwide operation. The company earned recognition for its technical expertise, high safety standards, and practical approach to getting the job done. These values are closely aligned with those of Muehlhan Wind Service (MWS).
Since its founding, EPiK Energy has been a trusted name in North America’s renewable energy sector, delivering dependable manpower, equipment, and project management solutions for wind energy construction and maintenance. With over a decade of experience and more than 2.5 GW of installed wind energy capacity, EPiK built a reputation for reliability, efficiency, and a strong safety culture.
Founded in 2009 by a team of five electrotechnical engineers, Endiprev established itself as a trusted specialist in commissioning, medium- and high-voltage (MV/HV) services for the wind energy industry. Over the years, the company completed more than 500 projects across 35 countries, building a strong reputation for precision, safety, and technical excellence in both onshore and offshore environments.
Founded in 2018 by CEO Simon Øland near Lindø Shipyard in Munkebo, Denmark, 3WIS established itself as a specialist in welding repair and structural steel solutions for wind, energy and marine industries. Through the combination of engineering, inspection (including NDT) and welding, 3WIS delivers turnkey repair solutions to heavy steel structures, with a focus on extending asset life, reducing downtime and maintaining OEM-level standards.
AC883 Renewable Energy Services is a Canada–based wind service provider supporting turbine owners and asset managers in optimizing performance, reliability and long-term asset value.
Trusted by leading players
Muehlhan Wind Service in numbers

Our commitment to HSEQ

Health, Safety, Environment, and Quality (HSEQ) are at the heart of our operations. Our ISO 9001, 14001, and 45001 certifications, along with DS2320 and VCA, reflect our commitment to continuous improvement and responsible operations. We foster a strong safety culture through training, hazard awareness, and knowledge sharing. By aligning our strategy with the UN Sustainable Development Goals, we strive to make a positive impact on our people, customers, and the planet.

Explore how we make an impactExplore how we make an impact
Protecting what matters most
The foundation of every decision we make
HSEQ
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Our global footprint matters

Our extensive pool of technicians and inspectors covers almost every corner of the world, delivering high-quality service to wind energy customers through 15 business units in more than 35 countries. Wherever your wind project takes you, we will deploy the right team with the right skills to ensure success.

All
AMER
EMEA
APAC
CAN
USA
BRI
IBR
MED
NCE
EAS
AUS
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Our culture

Our people are the driving force behind every solution and every success

Our culture

Our people are the driving force behind every solution and every success

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Let’s connect and create impact together

As your dedicated wind service partner, we’re committed to providing tailored solutions for all your needs. Whether you have questions, need expert advice, or require specialized support, we’re here to help.

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Contact
sales_mws@muehlhan.com
+45 20 75 52 61
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20097 Hamburg, Sachsenstrasse 8, Germany
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20097 Hamburg, Sachsenstrasse 8, Germany
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