
Our story


Powerful and dynamic network of companies
At Sansidor, we do things a little differently. We combine the best of both worlds: the flexibility and independence of local businesses with the power of a large support network.
What we do
As a specialist in Testing, Inspection & Services (TIS), we offer reliable, independent and timely advice, inspections, tests, audits, training and analysis. Our high-quality project management and additional services are fully focused on ensuring a safe, healthy and sustainable working and living environment.
At Sansidor, we never stand still
Our TIS network is constantly growing, becoming stronger and more powerful. This unique combination of a larger professional organization that provides support and encourages cooperation, with local entrepreneurship and customer focus in the – mostly independent – companies, makes our services increasingly exciting.
Our origins
Sansidor was created in 2018 as an investment of HC Partners, born out of a number of inspection companies. Despite being a young TIS network organization, the companies within our network have a rich history and a wealth of experience, some of which have been around for more than 55 years. After several years of rapid growth, IK-Partners joined as a participant in 2024. In 2025 the move to Germany was made, with the same services and vision.
What we do
Our services are aimed at creating and maintaining safe, healthy and sustainable buildings, installations and interior spaces – as well as at dealing responsibly with the living environment, such as subsoil and infrastructure. We work for a wide range of clients: from building owners and managers to technical and facility services, industry, installers, construction companies and governments.
Specialisations
We serve our clients from five types of specialties:


Water safety & environmental analyses


Fire Safety


Electrical inspections & testing


Building Integrity


Niches: Air Research & Infection Prevention
How we grow
We achieve our growth by investing in mutual cooperation, striving for service excellence, being a good employer and a focused Buy & Build Together strategy.
We welcome new companies, brands and specialties into our network. This allows us to invest in the future together, provide focus and offer clients a broad range of services.
Our ambition? To become the most dynamic, fastest growing and customer-oriented TIS network in the Netherlands and Germany. With the entry of IK Partners as a majority shareholder as of July 2024, we are strengthening this ambition. Together with our shareholders and stakeholders, we are purposefully building for the future.

Quick-shifting professionals
Within the world of TIS, things really can be different. Clients are looking for specialist partners who can respond quickly and offer the security of a larger organization. Sansidor offers the best of both worlds: a powerful network of independent specialists, linked in one group.
Why we exist
Our ultimate goal is to ensure a safe and healthy living environment. At Sansidor, we ensure safe places to work, live, be cared for and recreate.
Our responsibility
We are committed to the Sustainable Development Goals of the United Nations.