Who are we?

A TEAM of experts with a fresh view to innovative technologies for all your concrete questions.

We are an international competence centre for building materials technology. As part of Umdasch Group Ventures, we as a concrete specialist develop and utilise the next generation of concrete technology and construction engineering processes along the construction and precast industry processes. Our developments for production and maintenance control make a decisive contribution to saving energy and CO2

Our enthusiasm for innovation includes a focus on everything that has anything to do with concrete. From high quality testing in our modern lab to advice on the choice of materials, and from the further industrialisation of construction and production processes to the digitalisation of information flows. We are working in a combination of a high-tech laboratory and a knowledge institute for concrete technology that is active across the globe. With over 40 years of experience, we proudly call ourselves the specialists in concrete technology.

Innovation is paramount to us. We optimise the precast concrete production as well as the building process with concrete. Thanks to our exceptional insight into the construction process, we are able to deliver real improvements – improvements that make your operations more cost-efficient, safer, faster and better en aim to raise the concrete industry to a new standard.

At Concrefy, we get energy and motivation by helping you!

Materials research, product development and process improvement are part of our daily routine, as are damage analyses and inspections.

fresh thinking for construction


By combining digital services and modern concrete technology, we create added value for the concrete construction business.


We optimize the concrete construction process


Converting Unique Selling Points to Unique Buying Reasons

Our Concrefy Core Values

These values show the heart of our team and culture and lead us to make the difference for our stakeholders.

  • Caring for our people
    We create an environment where our people feel fine and can thrive.

  • Flexibility
    We are flexible and will adapt to our customer’s wishes.

  • Continuous improvement
    We always look for opportunities to improve our products, services, processes and people.

  • Reliability
    We take responsibility and do what we say.

  • Innovativeness
    We dare to think outside of the box.

  • Caring for the environment
    We think about the environmental consequences of our actions and act upon that.

Do you prefer to work in a small innovative and fastgrowing company?

We are looking for new team members in several functions.


Concrefy has a rich history dating back to 1978, when Ing. J.J. Stapels founded the concrete consultancy firm “Betontechnisch Adviesbureau Stapels” (BAS) in Oostrum, The Netherlands.
It was not until the company’s acquisition by Ir. A.J.E.J. van Casteren in 1994 that the consultancy firm initiated its considerable modern development.
In 1999 this was signified by its transformation into the “Instituut voor Betontechnologie, Advies en Schade-expertise” (BAS) and the establishment of a modern accredited laboratory in Venray, The Netherlands.

The next step in the evolution of the company occurred in 2007, when the largest and most modern concrete laboratory of the Netherlands “B|A|S Research & Technology” was moved to Venlo.

Since its foundation B|A|S has rapidly developed into a renowned international concrete engineering firm. The company develops unique value engineering concepts combining concrete technology and digital techniques.

As of July 2016 the company has become a part of the Doka family, focussing on further international growth. In 2018 we say goed by to B|A|S and get a nieuw brand : Concrefy – fresh thinking for construction.

We have been actively involved in the Umdasch Group’s innovation Hub since the end of 2021. Since October 2022 we have also been a legal part of Umdasch Group Ventures, based in Amstetten, Austria.