The Callens Group tells the story of an entrepreneurial family.

With 430 driven people taking centre stage, we bring our warm story to life. Here, you can gain fascinating insights into our technological innovations and people-focused culture.

Family of fire Sustainability

Callens goes live to donate € 22,300 at ‘Het Warmste Huis’

1 December 2024

After 10 weeks of igniting a fight against loneliness for De Warmste Week, colleagues from Callens, Callens-Vyncke, and Optimum by Callens g...

Callens Ecological Event 1

Callens Group Technology Sustainability

Callens showcases feasible sustainability techniques at 1st EcologiCal event

1 November 2023

Kris Stappers & Bert De Gryse

Sales Director Callens Group & Department of Technology Director

Callens presented its achievable and modular sustainability techniques for the process industry during the first - eagerly awaited - Ecologi...

Callens elektrodeboiler 6

Towards a climate neutral production process during an energy crisis: how?

1 November 2022

Sales Director Callens Group

Within less than 30 years, we will be living and working without harming the planet like we do now. Even during an energy crisis like this o...

20200908 callens faciliteert warmte voor gentse nieuwe dokken def nl image1

Technology Sustainability

Callens facilitates heat for the Ghent ‘Nieuwe Dokken’ project

1 September 2020

Sales Director Callens Group

Sustainable residential project ‘De Nieuwe Dokken’ in Ghent is a first for Belgium and environs. Callens is assisting energy cooperative DuC...