Aon's $17 Billion USI Deal: A Costly Bet on Middle-Market Growth

Aon is acquiring USI Insurance Services from KKR for $17 billion to expand its U.S. middle-market insurance brokerage footprint. The deal, expected to close in Q4 2026, will add specialty insurance access and analytics capabilities while generating approximately $395 million in annual EBITDA synergies. EPS accretion is projected for 2028, though the transaction requires significant debt financing and suspension of share repurchases in the near term.