DELSOL Avocats advised Naldeo and its management. As part of its strategic plan, the company intends to double in size within 5 years.
Naldeo is an engineering and consultancy group whose core values are technical excellence and climate action for public and private customers. With 300 employees across 10 sites in France and growing international activity, Naldeo is a company that is constantly evolving. The teams are highly specialised in all issues related to climate change, such as water, energy, waste and the environment. They share the same approach throughout the entire project life cycle, providing services such as project ownership assistance, strategic and technological consultancy, technical, regulatory and environmental audits, technical studies and diagnoses, project management, risk management, industrial performance management, site and operational monitoring and digital tools.
As part of the Group’s strategic plan, Chairman Jérôme Teissier has reorganized its capital, with the exit of several long-standing family offices and the consolidation of the capital holdings of Bpifrance and IDIA Capital Investissement. These two organizations have supported the Group since 2023 and have reaffirmed their confidence in its development prospects. The reorganization has strengthened the control of the Chairman and his management team (around 10 managers), who now hold around 80% of the capital following the transaction.
In the context of this transaction, DELSOL Avocats advised Naldeo with a team including

