The Diot-Siaci Group, an independent insurance and reinsurance brokerage, has announced gross revenue of €1.31 billion for the financial year ended December 31, 2025.
The results represent a 28% increase over the previous year, driven by a combination of 5.5% organic growth (excluding foreign exchange effects) and targeted acquisitions.
This positive performance is attributed to the Group’s ongoing Horizon 2029 strategic plan, with the results confirming the relevance of the business model and the roadmap deployed by Group CEO Cédric Charpentier.
In 2025, the Group’s capital structure experienced a significant shift. In November 2025, The Diot-Siaci Group finalised a new ownership structure, with long-standing shareholder, the Burrus Group, increasing its stake from 42% to 47%.
In September 2025, Ardian, a private investment firm, became the primary financial shareholder with a 45% stake. Management and employees hold 8% ownership.
The new capital structure includes joint control governance between Ardian and the Burrus Group to support future growth. Cathay Capital sold its minority stake of approximately 5%, held since the 2021 merger of Diot-LSN and Siaci Saint Honoré.
Diot-Siaci also saw good results outside of France, its domestic market. With Europe and the rest of the world continuing to grow to €610 million compared with €454 million in 2024 (+34%), in line with the Group’s international strategy notably thanks to rapid development in the Middle East and Africa region. Revenue in France increased by 21% to €698 million, against €576 million in 2024.
Diot-Siaci Corporate Solutions, one of the Group’s business units and the entity primarily dedicated to Property & Casualty (P&C) activities for Key Accounts and the Middle market in France, recorded gross revenue of €287 million, up by more than 5% compared with €274 million in 2024, supported by strong commercial momentum across most business lines, particularly in the Middle market segment.
The Diot-Siaci France and International Employee Benefits unit (PSFi) saw its gross revenue increase by almost 4% in 2025, reaching approximately €166 million. This is up from nearly €160 million in the previous year (based on a like-for-like comparison, excluding HR consulting activities).
Now structured as a distinct business division within the Group, the HR Consulting unit reported revenue of €137 million following the acquisition of the Oasys & Cie Group.
MSH, the subsidiary dedicated to employee benefits for globally mobile individuals, closed 2025 with revenue of €142 million, compared with €136 million in 2024 (up 5% and 8% excluding foreign exchange effects).
The credit insurance, bonds and financing activities of the Diot-Siaci Credit entity generated revenue of €51 million.
Finally, the “International” Business Unit, which brings together specialty businesses in transport and marine insurance, captive management, reinsurance, as well as activities in the EMEA regions (Europe excluding France, the Middle East and Africa) and the Rest of the World (Singapore), recorded revenue of €525 million compared with €369 million in 2024, i.e. 42% growth.
Diot-Siaci noted that this increase reflects the impact of the merger with the Nasco Group and acquisitions completed in Africa.
