
Global insurance brokerage Arthur J. Gallagher & Co. has announced the completion of its acquisition of US insurance broker AssuredPartners.

The transaction is reportedly the largest sale of a U.S. insurance broker to a strategic acquirer in industry history. It was initially expected to close in the first quarter of 2025 but was delayed amid regulatory review.
J. Patrick Gallagher, Jr., Chairman and CEO, said, “I am extremely excited to welcome our new colleagues to Gallagher.
“Together, we will further build upon our client-centric, entrepreneurial cultures and utilize our product and industry expertise, extensive data, innovative analytical tools, outstanding service, and broad product offerings to provide our clients with the very best insurance and risk management solutions. I am confident the combination will deliver tremendous value to our clients and our shareholders.”
The transaction is expected to further expand Gallagher’s retail middle-market property/casualty and employee benefits focus across the U.S.
It will also deepen Gallagher’s capabilities across multiple niche practice groups, including Transportation, Energy, Healthcare, Government Contractors, and Public Entity, while expanding the reach of Gallagher’s tuck-in M&A strategy.
Gallagher also anticipates that the acquisition will create new opportunities, particularly for its wholesale, reinsurance, and claims management businesses, while adding scale, expertise, and talent to the firm.
The transaction was financed with net proceeds from previously disclosed equity and debt financing transactions.