A+W Lyon

The Amstein + Walthert SAS office offers engineering and project management services in fluids, thermal networks, electricity, SSI and environmental quality, as well as services as a project owner's assistant in the fields of energy management at the building and regional level, building physics, the environment and user comfort and well-being. From the renovation of historic buildings to the design and implementation of new projects in accordance with the highest energy and environmental standards, our employees combine scientific skills with a passion for their profession.

Based in Lyon and Paris, we are able to manage large-scale projects throughout France and overseas. Thanks to our long experience in sustainable construction, we have been able to capitalise on our unique know-how to develop simple, efficient and renewable projects for the greatest benefit of our clients and our planet. As a force of innovation, we are constantly researching and developing economical and sustainable solutions. 

Being on the way to 100% digital, our company is today a leader in the development of BIM. Our motivation is to accompany you in the realisation of your projects and we commit ourselves, in a responsible way, to carry them out with all the rigour and quality that are specific to our company.



Maucoronel Corentin

Maucoronel Corentin
A+W Lyon


Villemot Etienne

Villemot Etienne
Head of Sustainable Building Department
A+W Lyon


Amstein + Walthert SAS
9 rue du Lac
F-69003 Lyon

+33 4 78 95 29 69


Branch office

Amstein + Walthert Paris
207 rue de Bercy - Wojo Gare de Lyon
F-75012 Paris

Legal form

Branch of Amstein + Walthert PLC in Zürich