participants/EN

Over the past 18 editions, this extraordinary event has brought together companies of all sizes and from all sectors, dynamic local authorities and government organisations determined to share their history, their skills and their passion. The result? A unique experience for visitors and a shining testimony to the vitality of the economic fabric of the Grand Duchy of Luxembourg.

Over the years, Portes Ouvertes Luxembourg has proudly welcomed a total of 358,900 visitors, amazed by the diversity of the 485 participating companies. It's a figure that speaks for itself, and one that demonstrates the growing interest in this national event.

LIST OF PARTICIPANTS 2025