Technical solution provider for critical power and control systems
For almost ninety years, VONK has designed and delivered reliable power conversion and control systems for applications where performance is critical and failure is not an option. We work in industry, defense, hydrogen production and uranium enrichment, environments that demand technical precision, operational continuity and long-term engineering commitment.


We create value and sustainable growth by helping solve difficult challenges of the Energy Transition, building on our strong foundation of our technical capabilities and our work & reputation with our clients.
Started in 1937 with a big dream
VONK’s history starts in 1937, when Mr Arjen Vonk, son of an ice skate manufacturer, started a radio supply & repair shop in Coevorden, Netherlands. The roots of VONK as we know today were planted when shortly after WW2, Shell (NAM) started development of nearby discovered oil- and gasfields and Mr Vonk shifted from radio’s to engineering and providing electrical solutions & services to that burgeoning industry.
Quickly developing its reputation for innovation and reliability, Shell engineers were quick to turn to VONK for help from other locations around the world, too. Facing challenging conditions in remote locations, VONK was one of the first to pioneer prefabrication of E&I solutions (instead of on-site construction) – initially in wooden crates later steel containers. These containerised solutions or containerised buildings, also known as substations, are now industry standard and still part of VONK’s business today.
VONK continued to grow, internationally (taking on larger complex projects) but also developing a significant generic E&I contracting business in the Netherlands. Latter business is characterised by high volume-low margins and this business saw a wave of consolidation in the 1980’s.
When Mr Vonk decided to retire in 1989, he sold his company (several hundred employees at the time) to Internatio-Müller, the predecessor of Royal Imtech. The generic local E&I contracting was moved to other Imtech entities, whilst VONK continued successfully with the international solutions for the Oil&Gas industry.
In 1999, the personnel from the former company QtecQ (before part of Holec Projects), a power electronics engineering company, joined VONK. This expanded VONK’s business portfolio with the defence, uranium enrichment and research. Before Imtech’s demise in 2015 VONK was sold to private investors.
Today VONK is, with it’s experience and technical knowhow, your solution provider for Power Conversion, Electrical & Instrumentation and Control & Automation Challenges, enabling your Energy Transition and contributing to a more sustainable society.

Mission
We design and deliver reliable power and control systems for complex, critical applications, supporting today’s industries and enabling the energy transition.

Vision
As energy systems become more complex and critical applications more demanding, we believe reliability has to be engineered, not assumed. Our vision is to remain the partner that makes complexity work, in industry, defense, hydrogen and uranium enrichment, with systems built on proven technology and real-world experience.


Our contribution to a better and greener world
Our offices
We have four offices, with two in the Netherlands and two international locations, providing global support and local expertise.






























