Paris, 14 July 2026 — Deerns ranks among the d’architectures Top 100 2025 ranking of France’s leading Technical Engineering Consultancies (BETs) for the first time.
According to the annual industry ranking published by the specialised magazine ‘d’architectures’, Deerns now ranks 3rd among specialised engineering firms and 36th among French engineering consultancies, reflecting its strong growth trajectory in the French market in recent years. This follows a period marked by continued growth across strategic sectors such as real estate, healthcare and data centres, as well as a move to new offices ahead of significant expansion in employee numbers.
“This is an important milestone for Deerns. It reflects the dedication of our teams, the trust of our clients, and the strength of our integrated engineering approach,” says Michael Marchal, Country Director France. “We have experienced significant growth in both workforce and business development and we are looking ahead with confidence thanks to a strong and diversified portfolio of activities.”
Growth driven by high-value sectors
The Real Estate sector has been a particularly strong growth driver, reinforcing Deerns’ position as a trusted partner for complex and high-performance building projects. This extends from luxury hotels through to hyperscale data centres. In addition, framework contracts and projects are opening up new opportunities in airports and healthcare, areas where Deerns also has long-standing international expertise. These achievements demonstrate the company’s ability to support clients in delivering technically demanding projects that combine performance, sustainability and innovation.
International expertise supporting the French market
Deerns is one of Europe’s leading independent engineering consultancies, with its centennial anniversary in 2028. The company supports clients in creating high-performance and sustainable built environments across the real estate, airports, healthcare, data centres, electronics and life sciences sectors.
With offices in 10 countries and 17 locations worldwide, Deerns brings together approximately 750 specialists. This international footprint enables the French team to draw on global expertise while addressing the specific needs of the local market.
This momentum is also reflected in the company’s rapid expansion in India, where Deerns has significantly strengthened its presence in recent years to support the fast-growing data centres, electronics, life sciences, and healthcare sectors in the region.
Building on this momentum
This ranking is recognition of the significant growth of Deerns in France. The company intends to continue its growth by responding to market opportunities and leveraging its core expertise and international network to help clients address the challenges of the future.
