With offices in Paris, Lyon and Marseille, Adaltys Avocats represents major clients in energy, public entities and urban planning. The firm has also increased its international reach, expanding into China with a presence in both Beijing and Shanghai. Xavier Heymans manages the team and leverages two decades of experience in environmental, construction and urban law. The group also includes Gilles Le Chatelier, an expert in public business and administrative law, based in the Lyon office. Benjamin Boiton manages the Marseille office and specialises in public business law and EU State aid rules, while Lucie Paitier heads the Rennes office advising public bodies on infrastructure and energy and environment projects.
Key clients
- Embecta
- Kalhyge
- Api
- Cepovett
- Caisse des dépôts
- French Blood Establishment
- Société d'Equipement du Bassin Lorrain (SEBL)
- Metropolitan area of Perpignan
- TRIFYL
- Stellantis
- Arcelormittal projects exosun
- Tokai cobex
- Allimand
- Dalkia electrotechnics
- Stradley ronon lawfirm
- Davis Wright Tremaine llp
- Tounkara & associes
- Moringa
- Priams
- D2P Aménagement
- SPL Lyon Part-Dieu
- SPL Terrinov
- SPL Confluence
- SPL G2D39
- SATA
- SMAG
- SMPBPM
- Oz-en-Oisans
- EDF, Enedis, électricité de strasbourg
- Proviridis
- tenergie Group
- Irisolaris
- Marseille airport
- Alcyon
- Lyon airport
- Lyon metropolis
- Sipearl
- OFS foncière solidaire du grand lyon
- SPL Part-Dieu
- Paris Saint-Germain football club
- Bouygues construction
- CA du Puy en Velay - CAPV
- Oppidea
- South Provence Alpes Côte d'Azur region
- AURA Region Auvergne-Rhône Alpes
- SNCF group
- Compagnie nationale du rhône (CNR)
- UTC group (otis / chubb)
- Xerox-conduent
- Keolis
- Sipearl
- Dalkia
- Veolia
- NGE
- Eurovia
- Laurent Perrier Group
- Sequano aménagement
- Joa group
- Irizar
- Danaher Group
- Becton Ddckinson
- Lyon car park
- Arac occitanie
- Grand Lyon Habitat
- Greater Lyon
- Greater Marseille
- Lille European Metropolis
- Metropolis of Nice
- Rouen Metropolitan Area
- Bordeaux Metropolis
- Saint-Etienne Metropolitan Area
- Toulon Metropolitan Area
- Nantes Metropolitan Area
- Annecy Metropolis
- Enedis
Work highlights
- Assisting Lyon Metropolitan with the construction program / public facilities program of the Part-Dieu district.
- Assisting Elyse Energy with the construction of a biomethanol production plant in Fos sur Mer.
- Advising the Ministry of Ecology on the development strategy for the Sète Agglopôle and Perpignan Méditerranée Métropole areas.
Practice head
The lawyer(s) leading their teams.
Xavier Heymans