Aon to acquire USI to establish the premier U.S. middle-market platform

Aon to acquire USI to establish the premier U.S. middle-market platform PR Newswire

DUBLIN, Aug. 31, 2026 * Builds on the successful acquisition of NFP to advance leading platform in the large and growing U.S. middle market * Extends Aon's differentiated capabilities to provide better choice, superior solutions and greater value for clients * Expands Aon's access to the Excess & Surplus (E&S) segment, among the fastest-growing areas in U.S. commercial insurance * Enhances Aon's industry-leading data platform, deepening its context advantage * Following the close of the transaction, USI Chairman and CEO Mike Sicard will serve as President of Aon plc and global CEO of Middle Market for the firm * Purchase price of $17.0 billion; transaction expected to deliver $395 million in annual run-rate net adjusted EBITDA impact from revenue and cost synergies across the combined middle-market platform and to be accretive to adjusted EPS in 2028 * Aon to host conference call to discuss transaction on August 31, 2026, at 8:00 AM ET DUBLIN, Aug. 31, 2026 /PRNewswire/ -- Aon plc (NYSE: AON), a leading global professional services firm, today announced the signing of a definitive agreement to acquire USI from KKR and other shareholders for a total purchase price of $17.0 billion. The transaction establishes the premier platform in the large and growing U.S. middle-market segment, building on the success of Aon's acquisition of NFP in 2024.