Press release

17.10.2022

Isatis Capital invests in the CET Ingénierie Group

Isatis Capital is pleased to announce that it has acquired a stake in the CET Ingénierie Group through the funds it manages with the Group’s managing directors, Jean-Luc Ransant and Clotilde Ceccarelli. With this transaction, the founding partner is leaving the group. This allows key managers to acquire a stake in the company’s capital.


Founded in 1965 by Christian Curtet, CET Ingénierie is an engineering company specialised in construction. Its areas of expertise include project management, structural and technical studies (heating, ventilation, air-conditioning, smoke extraction, low and high voltage electricity, external works) and construction economics. On behalf of public and private sector clients, CET Ingénierie carries out projects in four key areas: new housing and refurbishment; institutional works; health infrastructure; and research laboratories. Through its subsidiary, Gaya Développement Durable, the group has also developed expertise in building environmental quality.

CET Ingénierie has over 200 employees and 4 regional offices: Paris, Lyon, Lille and Le Havre. The group manages more than 150 projects a year on behalf of its clients, totalling nearly €1 billion in underlying works.

Having just moved to new premises in Clichy (92), the group's aim is to continue its development with financial and strategic support from Isatis Capital. The objective is to expand its regional coverage and develop new skills in order to better serve its clients, both through organic development and external growth operations.


"There are important moments in the life of a company, and a handover is a delicate process. After 34 years at the company, at the age of 56, I felt that we needed to reflect on what we wanted for the future of the CET Ingénierie Group. As managing partners, and with the approval of CET Ingénierie’s founder Christian Curtet, we decided to bring Isatis Capital on board for three main reasons: to open the group's capital to our key employees; to benefit from Isatis Capital's expertise in terms of the technical and financial analysis of future external growth; and Isatis Capital’s experience in supporting the development of changing companies. We have been working on this project for a few months, and I already feel a strong dynamism and desire to achieve taking hold", Jean-Luc Ransant, President of CET Ingénierie.

Isatis Capital's acquisition of a stake in CET Ingénierie will allow us to develop new opportunities, strengthen and increase our economic resources, and integrate our key managers into the Group's transfer process.

Clotilde Ceccarelli

Managing Director of CET Ingénierie

"Isatis Capital's acquisition of a stake in CET Ingénierie will allow us to develop new opportunities, strengthen and increase our economic resources, and integrate our key managers into the Group's transfer process. Laurent Baudino and I share the same vision for the company and its employees. This is why together we decided to write this new page in the history of CET Ingénierie. " Clotilde Ceccarelli, Managing Director of CET Ingénierie

"The quality of the ambitious development plan presented by the company's directors and managers, both through organic and targeted external growth, quickly persuaded us as to the value of this investment. The depth of this market and current underlying trends are generating opportunities. Added to this are the strong values embodied by the company's managers, to whom we have become attached, and the high level of trust that was established early on between us. All of these strengths have reinforced our belief in the Group." Laurent Baudino, Isatis Capital