06/05/2026
A chapter closes for BuildUp, but beSteel Light steel framing keeps moving forward. 🏗️
After several months of reflection, BuildUp has decided to cease its operations, closing an important chapter in offsite construction. This marks the end of a journey that began in 2021, driven by a strong conviction: the construction sector must radically transform to become more frugal, more precise, and more circular.
To promote this bold industrial model, we took risks — but we were unfortunately unable to overcome all the challenges we faced, particularly those linked to rapid growth, perhaps too rapid. While the BuildUp brand fades today, the innovation we championed continues to move forward.
beSteel carries on. 🤝
We are very pleased to announce that the assets of beSteel (founded in 2015) have been transferred to the company SWEELCO, created and led by Damien Muller and Pierre Rougeulle.
This transfer allows beSteel's historic expertise to endure and find new momentum. By joining Sweelco, beSteel becomes part of a structured and ambitious industrial project built around a shared mission: to design and produce every day "light & smart" constructive solutions.
Thank you to all those without whom this adventure would not have been possible:
✨ Hélène de Troostembergh, the driving force and face of BuildUp and beSteel. Her determination, vision, and unwavering commitment — right up to the closing of this chapter — deserve special recognition.
🤝 The BESIX Group and the de Troostembergh family, for their constructive collaboration and their support in the face of the challenges of innovation.
🙏 Our teams, who gave all their energy and talent to this extraordinary adventure.
beSteel's historic expertise is now in good hands, at Sweelco, to continue carrying high the ambition of "Reconstructing Construction for Good."