CNC Onsite reports record growth and expands mobile repair solutions globally

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CNC Onsite, a Danish specialist in precision machining for the wind energy sector, announced today that Søren Kellenberger, co-owner and Sales Director, will assume the role of Chief Executive Officer with immediate effect, succeeding Aage Dam. Aage will remain with the company until the summer holidays to ensure a smooth transition. As the new CEO, Søren will focus on strengthening and expanding the company’s international activities in markets such as Europe and North America. The management change was formally communicated today to all employees at an internal staff meeting.

“The company has grown steadily by solving complex technical challenges on site, and my goal is to continue this development. CNC Onsite will focus on further developing our competencies and supporting our customers within the wind sector and heavy industries, while maintaining the innovative approach that has characterized CNC Onsite. The company’s development is, and will continue to be, driven by the professional expertise and commitment of our employees, who play a central role in our growth and international reach. I look forward to the challenge as CEO of CNC Onsite,” says Søren Kellenberger, incoming CEO and co-owner.

As part of the transition, the ownership group has also been expanded to include Chairman of the Board Jan Kjærsgaard, who brings many years of experience from the wind industry, including senior roles at leading companies such as GE and Siemens.

The management change is part of a planned generational transition. The first step was taken a year ago when Daniel Schou Jensen joined the management team and simultaneously became part of the ownership group. The company has now reached a point where Aage Dam, at his own request, can step back and exit the company.

“Since I joined CNC Onsite in 2016, I have had the pleasure of working with a team that loves solving complex challenges together. Together, we have transformed ideas into practical solutions, developed new methods and machines, registered patents, and delivered results that our customers continue to build upon today."

"Among the most important milestones for me are the scaling of our flange milling capacity with the ‘Hercules’ machine, the expansion of yaw crane repairs across multiple platforms, and the completion of our first on-site repair of blade root ends on wind turbine blades."

"I value what we have achieved as a team, and I have full confidence that Søren will continue to lead the company forward,” says Aage Dam, outgoing CEO and co-owner.

CNC Onsite’s core competencies lie within wind energy, including on-site machining and repair of wind turbine components. The company also operates within heavy industries such as refineries, bridges, and maritime infrastructure, providing on-site machining and repair services. CNC Onsite’s headquarters in Vejle, completed in 2023, has strengthened both workshop capacity and technical expertise.

CNC Onsite holds several patents, including for on-site flange milling and for the repair of yaw cranes in the nacelle - methods that reduce downtime and eliminate the need for cranes.

Recent projects include the development and leasing of “Hercules,” a large flange milling machine capable of machining flanges up to 11 meters in diameter, under long-term agreements with companies such as CS WIND Offshore and Welcon. Over the past year, CNC Onsite completed its first blade root repair in collaboration with the Dutch company We4Ce and simultaneously expanded its capacity for repairing yaw cranes in towers across multiple wind turbine types.

Over the past decade, CNC Onsite has increased its gross profit by more than 300 percent and more than doubled its workforce to over 60 employees. In the most recent financial year (FY 2024/25), the company reported a 74 percent year-on-year increase in gross profit to DKK 58.7 million, a 152 percent increase in EBIT, and more than a doubling of net profit after tax.

About Søren Kellenberger

Søren Kellenberger joined CNC Onsite in October 2021 and is a partner and co-owner of the company. He has been appointed CEO while continuing to oversee the company’s global sales activities. Søren holds a degree in Mechanical Engineering and has more than 20 years of experience in the wind turbine industry, including work at R&D Test Systems with turbine development, testing, and O&M equipment.

About CNC Onsite

Founded in 2012 and headquartered in Vejle, Denmark, CNC Onsite designs and delivers mobile high-precision machining equipment for the wind turbine industry, including offshore foundations. The machines are built flexibly using the company’s proprietary “building blocks” method, enabling customized solutions for a wide range of tasks.

The company serves both onshore and offshore wind projects and offers services including steel flange machining, specialized repair services for yaw cranes, rotor locks, generator shafts, bearing housings, and threaded holes, removal and replacement of worn or damaged bolts, and repair of threaded inserts in wind turbine blade roots.

CNC Onsite has announced its strongest financial performance to date, marking a year of significant growth and strong operational results in the financial year from 1 October 2024 to 30 September 2025. Gross profit increased by 74 percent, while both profit before tax and net profit rose by more than 100 percent. This reflects solid demand for mobile, onsite machining solutions as well as the company’s continued investments in technology and talent to ensure reliable and distinctive service.

CNC Onsite completed a record number of projects during the 12-month reporting period, carrying out complex repairs and precision machining for the wind and industrial sectors across Europe, North America, Asia, and Australia. The company’s custom-built machines operated continuously with minimal downtime, ensuring high customer efficiency and contributing significantly to the year’s strong results.

The 2024/25 financial results underline this positive development. Gross profit rose to DKK 58.7 million, an increase of 74 percent compared to the same period last year. Profit before tax increased by 152 percent, while net profit more than doubled to DKK 13 million. The workforce grew by approximately 50 percent to 60 employees, supported by targeted recruitment and high retention.

Key operational activities during the period included the development and rental of large flange milling machines for tower and foundation applications under long-term agreements with Welcon and CS WIND Offshore. CNC Onsite also completed its first blade root repair in collaboration with Dutch wind turbine blade designer WeCe and expanded its capacity for yaw ring repairs to cover a broader range of turbine types. Continued investments in portal milling machines, shaft lathes, and specialized boring machines further strengthened the company’s ability to serve the wind sector as well as refineries, the construction industry, and the maritime sector.

Global demand for tower repairs continues to rise, particularly for aging onshore wind turbines and retrofit projects across both onshore and offshore installations, as operators seek to extend asset lifetimes and reduce operating costs.

The headquarters, established in 2023, is now delivering its full benefits and has significantly enhanced both workshop capacity and technical expertise. This investment has enabled CNC Onsite to reduce lead times and expand its portfolio of complex repair solutions.

Sustainability is an integral part of CNC Onsite’s strategy. The company has achieved recertification under ISO 14001 and ISO 45001 and follows a repair-rather-than-replace approach that helps reduce CO₂ emissions and supports a sustainable economy.

CNC Onsite’s growth is built on a clear focus on market segmentation. By identifying customer needs and developing tailored solutions in-house, the company ensures that its services are proactive and closely aligned with industry challenges. This approach has strengthened long-term partnerships and helped position CNC Onsite as a trusted specialist within the wind and industrial sectors.

“This year has been particularly significant for CNC Onsite. With net profit more than doubling and gross profit increasing by 74 percent, we have demonstrated that our business model works and that customers trust us to deliver. In just 13 years, CNC Onsite has grown from a niche provider into a globally operating specialist, delivering projects across Europe, North America, Asia, and Australia,” says Aage Dam, CEO of CNC Onsite.

Outlook

CNC Onsite expects continued growth in 2025/26, supported by ongoing research into advanced repair methods, including blade root components and other areas requiring critical precision. The company is exploring diagnostic capabilities and new repair solutions to meet evolving market needs, enabling customers to benefit from reduced downtime and extended asset lifetimes. These initiatives complement CNC Onsite’s established expertise in mobile machining and reinforce the company’s commitment to innovation and operational excellence within the wind energy sector.

About CNC Onsite

Headquartered in Vejle, CNC Onsite designs, builds, and delivers high-precision mobile machining equipment for wind turbines, including offshore foundations. The machines can be configured for a wide range of applications. CNC Onsite serves the onshore and offshore wind energy sector and delivers solutions within: machining of large-diameter steel flanges and blade roots; specialized repair services for yaw rings, rotor locks, generator shafts, bearing housings; removal of broken bolts; and repair of threaded holes.