Onex, the Canadian private equity firm, has acquired a controlling stake in Convex Group Ltd., a London-based provider of investment management and technology services, for $3.8bn, securing its long-term independent future.

AcquirerTargetValue ($B)TypeClosing Date
Onex (CA)Convex Group Ltd. (GB)$3.8Acquisition2025-10-30

The deal, which closed on Oct. 30, provides Convex with capital to invest in its technology and services offerings. The company's Chairman Stephen Catlin stepped down from the board as part of the transaction, succeeded by Onex CEO Daniel Le Blanc.

Deal Mechanics

The acquisition was structured to give Onex a controlling stake without requiring it to buy out all minority shareholders, allowing Convex to retain its independence while benefiting from Onex’s financial support. Specific terms of the transaction were not disclosed by either party.

Strategic Rationale

Onex’s investment is aimed at bolstering Convex's market position and enabling it to invest in technology upgrades and service expansion, thereby enhancing its ability to compete with larger financial institutions. The deal also ensures that Convex can maintain operational autonomy under Onex’s ownership.

Financial Context

The transaction underscores the continuing interest of private equity firms in tech-enabled businesses within the financial services sector. With a focus on long-term growth rather than short-term gains, Onex views its investment as a strategic commitment to Convex's future success and innovation.