NEW YORK — Aon has agreed to acquire USI Insurance Services in a $17 billion transaction, one of the largest insurance-brokerage deals in years and another major sign that the business of managing corporate risk is becoming increasingly valuable.
USI is one of the largest privately held insurance brokerages in the United States, with about $3 billion in annual revenue, more than 10,500 employees and nearly 200 offices across the country.
The company focuses heavily on the middle market — businesses large enough to face complicated insurance and employee-benefit needs, but often not large enough to maintain massive internal risk-management departments.
That is exactly the market Aon wants more of.
Aon is already one of the world’s biggest insurance and risk-advisory companies. It helps businesses buy coverage, structure employee benefits, analyze financial exposure and prepare for risks ranging from cyberattacks and lawsuits to natural disasters and rising healthcare costs.
Buying USI gives Aon a much larger direct relationship with thousands of American businesses.
The deal also reflects a broader change taking place across corporate America.
Insurance has become much more complicated.
Companies are facing larger cyber risks. Property coverage has become more expensive in areas exposed to hurricanes, wildfires and flooding. Healthcare costs continue to rise. Lawsuits and regulatory risks have become more difficult to predict.
As those risks increase, businesses are relying more heavily on brokers and consultants to help determine what coverage they need, what risks they should retain themselves and how much protection they can afford.
That makes the broker sitting between a company and the insurance market increasingly important.
Aon is paying heavily to own more of those relationships.
The transaction also follows Aon’s approximately $13 billion acquisition of NFP in 2024, another major expansion into middle-market insurance and employee benefits.
Taken together, the two deals show that Aon is not simply growing through small acquisitions.
It is spending tens of billions of dollars to become much larger in the segment serving midsized American businesses.
For KKR, the private-equity firm that invested in USI in 2017, the sale represents a major return.
USI expanded significantly during KKR’s ownership, and the investment firm is expected to generate roughly a sixfold return on its original investment.
That helps explain why insurance brokerages have become attractive private-equity assets.
Brokerages generally do not assume the enormous financial risk carried by insurance companies themselves. Instead, they earn commissions and fees by helping clients purchase and manage coverage.
When insurance prices rise or companies need more sophisticated advice, brokerage revenue can grow without the broker having to pay the underlying insurance claims.
That business model has made large brokerage platforms increasingly valuable.
The acquisition will also give Aon more scale when negotiating with insurers.
A broker representing a much larger pool of corporate clients can potentially bring more business to insurance carriers, giving it greater leverage when negotiating pricing, coverage terms and specialized policies.
USI CEO Mike Sicard is expected to lead Aon’s expanded middle-market operation after the transaction is completed.
For business owners, the deal may sound like another Wall Street acquisition, but it points to something much broader.
The cost and complexity of protecting a company are rising.
Cybersecurity, employee healthcare, property damage, lawsuits and other risks increasingly affect businesses of virtually every size.
And as those risks become harder to manage, the companies advising businesses on how to protect themselves are becoming bigger businesses themselves.
Aon is now putting $17 billion behind that bet.
JBizNews Desk | New York
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