A workshop where 300 people maintain trains, cancer-treatment equipment and laboratories that have never before been open to the public. Over two days, several facilities that are usually off-limits will offer a glimpse into how they operate.
Luxembourg Open Days returns on Saturday 19 and Sunday 20 September under the theme ‘Dat ka Lëtzebuerg’. The event, organised by the Brain&More agency under the patronage of the ministry of the economy, is celebrating its 20th edition.
The programme covers a large part of the Luxembourg economy. In particular, CFL will be opening its storage and maintenance centre in Bonnevoie. A guided tour will allow visitors to see the facilities used to repair and maintain rolling stock, with explanations provided by the teams working in the workshops.
From radiotherapy to biomedical research…
In Esch-sur-Alzette, the François Baclesse Centre will offer a behind-the-scenes look at radiotherapy and a patient’s journey, from the initial consultation through to the end of their treatment. Doctors, physicists, nurses and technicians will explain their roles. Advance registration by email is required for this tour.
Biomedical research will also be available at several sites. The Luxembourg Institute of Health will open the Integrated Luxembourg Biobank in Dudelange and the Luxembourg Research Clinic in Luxembourg-Belair. The public will be able to learn about the processing of biological samples, research into the immune system’s response to cancer, and how clinical trials are conducted.
In Hautcharage, the Luxembourg Institute of Science and Technology (List) will be offering tours of its laboratories and new facilities that have never before been open to the public. The demonstrations will focus in particular on materials, the environment, artificial intelligence and space technologies.
Digital careers will also have their own showcase. In Belval, the Digital Learning Hub will present the 42 Luxembourg school and its courses in artificial intelligence, cyber security and quantum computing. Workshops will be offered to the public, followed by a conference by 
… and from the brewery to the water tower
The event will also offer the chance to visit the Brasserie Nationale in Bascharage, the former Clausen brewery, the Thiry family’s dairy in Schouweiler, and the Stoll Maître Matelassier production facility in Ehlerange. The Gehaanshaff farm in Bettembourg, for its part, will showcase a family-run farm combining livestock farming, arable farming and direct sales.
In Kehlen, Sica will be presenting its new resource centre dedicated to reuse, repair and recycling. The Syndicat des eaux du sud, for its part, will open a pumping station in Koerich and the Rébierg water tower, where visitors will be able to learn about water collection, storage, disinfection and treatment systems.
Since the launch of Portes ouvertes Luxembourg, more than 525 companies, organisations and local authorities have taken part in the event. The organisers estimate the total number of visitors at nearly 381,000. The 2026 programme retains this original aim, whilst also making the event a platform for discovering careers, training courses and opportunities for work placements or employment.
Details of the venues, timetables and any registration procedures are available at portes-ouvertes.lu.
