Business Transformation | 08.31.26

Aon To Buy USI Insurance Services in $17 Billion Deal

by: Arasu Kannagi Basil

Aon has agreed to acquire rival USI Insurance Services from private equity firm KKR for $17 billion, one of the insurance industry’s largest recent transactions. The deal will significantly expand Aon’s presence in the U.S. middle-market insurance sector, valued at more than $40 billion, while strengthening its excess-and-surplus offerings and advisory businesses. USI generates about $3 billion in annual revenue and will be led by CEO Mike Sicard under Aon’s expanded middle-market platform. The acquisition follows Aon’s $13 billion purchase of NFP in 2024 and reflects accelerating consolidation among insurance brokers. The deal is expected to close in the fourth quarter of 2026.

Read the full article on Reuters