About us

We engineer the energy transition and circular economy

greentech island

Our story

At TransitionHERO, our goal is to create positive environmental impact. We (Petra and Stef) met several years ago while working for industrial clients at a traditional engineering firm, and realized that we have a common vision. A vision that the industry needs to undergo a transition in order to enable clean production processes and a sustainable supply chain. Enabling such a transition would require a combination of innovative technology, strong business cases as well as the right people and mindset. So, we put all this together and founded TransitionHERO.

With our multidisciplinary team, we have experience in optimizing energy systems and designing various process plants. We have supported startups in scaling up, built innovation programs in the industrial environment and understand what it takes – both the challenges and opportunities – to make those a success.

We are not building just another engineering firm. We are setting up the engineering of the future. Our team excels in creativity and is driven to create smart designs and sustainable game changing business cases

We really enjoy having the freedom to support great companies with our knowledge and skills. Let’s work together to have impact!


The penguin story

Our logo is a fast-moving penguin. Why? Green Technologies are like penguins. They look cute, and everybody loves them, but their way of walking is a bit waddly. They don’t move forward quickly and easily. However, if you put a penguin in the water, they appear to be the best swimmers. Green technologies need to be in the right business case (environment), like penguins need to be in the water. Once there are bubbles, you know they have enough speed to catch the fish.


Why us

Why are we different

The best team

Developing greentech projects comes with a great deal of uncertainty. Therefore we invest in people to be effective engineers in such an environment. We are knowledgeable, passionate, we value diversity and are all committed to making a positive impact.

Focus on sustainable impact

All the projects that we take on contribute to the Sustainable Developments Goals and a more sustainable future. And because we really want to make it work and create impact, we support from the first idea to implementation.

Business case comes first

During concept and basic engineering, the business case will be leading in the design of your project. Using our own tools, we focus on the main cost drivers and manage the iterative engineering in sprints. In this way, options and tipping points can be evaluated fast and easily.

Faster, better and smarter

By automating the boring and creating parametric models, we speed up your green technology project. We continuously invest in our data foundation in order to provide more flexibility, smarter insights and cost effectiveness.

Meet our enthusiastic team

Greg Wessels Greentech Project Manager Brings structure in complex projects
Yannick Hekman Energy & Utility engineer Tackles technical challenges
Adam Fontaine Algorithmic Process Engineer Automating the boring since 2003
Elizabeth Geddes Lead Process Engineer Puts science and technology into action
Petra Beris Co-founder - Greentech Project Manager Drives teams in complex environments
Eka Khrisnawati Lead Process Engineer Brings it all together in harmony
Stef Clevers Co-founder - Energy & Utility specialist Gets energy from making ideas work
Adinda Denneman Support Manager Keeps the team organised
Saeed Tajik Senior Process Engineer Designs pilot and demo plants
Marnix de Jong Greentech Process Engineer Creates concepts with sustainable impact
Youri Nattekaas Lead Engineer E&I His measurements are out of control
Menno Steverink Junior Engineer Changes the world sustainably
Ada Hlebowicz Greentech Process Engineer Strives for the smartest design
Vincent Ehlen E&I Engineer Smart engineering is his motto
Suleyman Atabey Technical Project Lead Loves creating a circular economy
Emile Verviers Lead Process Engineer Passionate about implementing GreenTech
Lars Breedveld Energy & Utility Engineer Asks the best questions to keep us sharp
Franklin Dijs Manager Operations Surgeon of TransitionHERO's impact
Sara López-Montoya GreenTech Process Engineer All about sustainable technical solutions
Henrique De Avelar GreenTech Process Engineer Bringing bio to the process
Rocio Villagran Vargas GreenTech Process Engineer Designs processes to facilitate the transition
Bram Arets Greentech Project Manager Team work is the road to success
Carine van Loon Communication and marketing Inspired by impact