Creating value for you, us, and society together
From our clubhouse in De Bilt, we develop vital software solutions for top organizations. We stay close to our clients as a trusted 'co-pilot' and tackle challenges to create meaningful value.

We are Thesio
Thirty software specialists who embrace every challenge. What unites us is the diversity of our clients, solutions, and team personalities. We thrive on change and take pride in finding the right solutions. Our reward comes from the value we create for our clients, because, simply put, we love software solutions that make a real impact and are recognized in the market.
We stay true to ourselves, valuing equality and openness in collaboration. No buzzword-bingo, just an honest story. Surprisingly, these are the key success factors often missing in partnerships.
Every Dutch person interacts daily with software that has been developed together with us.

This is what we stand for
Honest
We value transparency and direct communication, especially in challenges. Mutual respect and trust drive our collaboration.
Own it
We take responsibility together, as individuals and a team. It’s essential for tackling challenging projects.
Human first
We develop software, but people matter most. We prioritize collegiality and being a reliable partner in every situation.
Sustainable partnerships
We are in it for the long term. As colleagues among ourselves, but also with our clients. It is therefore essential that we ensure that we understand each other and know what drives us.
We are a match if...
Are you not a potential client?
Then come and work with us!
Would you like to help various organizations with their software solutions with a passionate team and new technology?
Check out the vacancies at Thesio.
It's time to get to know each other.
Now that you know who we are, we're curious to learn more about you. We’d be happy to meet and discuss how we can assist your organization with software development.