25 February 2026

Saint-Martin Patrimoine partners with Groupe Allen

Cession

sector Financial Services

Saint-Martin Patrimoine has joined forces with Groupe Allen (Carat Capital) as part of a strategic transaction.

Customer Saint-Martin Patrimoine

Led by two partners, Saint-Martin Patrimoine serves a demanding high-net-worth clientele and manages around €100 million in assets under management. Based in Montélimar, the firm has developed recognized expertise with religious institutions and other institutional clients, requiring a high level of standards in advice, continuity, and long-term trusted relationships.

Counterparties Groupe Allen

Groupe Allen is a leading player in private wealth management and family office services, historically developed under the Carat Capital brand. The group has nearly quadrupled its assets under advisory over the past four years, now managing approximately €2 billion, and operates through several complementary brands, notably: Carat Capital (private wealth management) Hedon Family Office (multi-family office) Following a recent capital restructuring, the group is now majority-owned by Qualium Investissement, alongside Parquest Capital, with a clear ambition to continue its consolidation strategy in France and internationally, while maintaining an open-architecture model and strong autonomy for partner firms.

A partnership logic built on alignment

The process was opened to several wealth-management platforms.

Beyond valuation considerations, the decisive factor was the alignment of DNA between Saint-Martin Patrimoine and Groupe Allen:

the same high standards in client support,
the same long-term vision of the profession,
the same desire to allow partners to continue operating in an entrepreneurial environment, within a structured platform.

What this transaction illustrates for CGP firm leaders

Partnering with a larger group does not mean giving up your identity or your operational role.
The choice of partner is often more structuring than the price level.
Cultural alignment and a shared long-term vision are critical when client trust is at the heart of the business.