A brief description of Léon Grosse

The Léon Grosse Group, with a century of expertise in construction, is broadening its horizons by incorporating energy renovation, facades, heritage and real estate into its know-how. This strategic diversification allows us to address current and future challenges by offering global solutions for sustainable and smart urban planning.

Our key figures

0 M€

of turnover in 2025

employees

branches and subsidiaries

locations in Europe

Our Mission Statement

We are committed to building a legacy to be proud of everyday. That's why we commit ourselves every day to act as responsible builders. We deploy concrete solutions to accelerate ecological and societal transitions.We develop real estate, the engine of asset and territory appreciation. Together, we are changing the present.

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A recognized and celebrated engagement

One of the best work environments in France

Léon Grosse becomes in 2024 the first construction company to join the "Best Workplaces France". The Best Workplaces Ranking by Great Place To Work® is the highest level of recognition for a company's quality of work life.

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