Arthur J. Gallagher’s 2025 results show how acquisitions and internal growth can reinforce each other: brokerage revenue climbed 18.9% to $13.17 billion, while organic growth reached 6%. The company retained its position as the world’s third-largest brokerage as it absorbed its largest-ever acquisition and expanded its workforce to nearly 72,000, from about 56,000 in 2024. Those figures tell two stories at once: a rapid increase in scale through deals, and continued growth within the business it already had. The second measure matters because it helps show whether expansion rests only on buying more companies.
AssuredPartners adds scale
The August 2025 close of the AssuredPartners acquisition brought Gallagher about $3 billion in revenue and 11,000 employees. AssuredPartners ranked as the 10th-largest broker of U.S. business. Gallagher CEO J. Patrick Gallagher Jr. said the integration had proceeded without disrupting momentum: “We haven’t missed a step.” He said employees from both companies had embraced the opportunity, and several AssuredPartners executives now hold senior roles at Gallagher. That account points to a deliberate effort to retain people who know the acquired business, though integration claims are easier to make early than to prove over time.
Gallagher also completed its acquisition of San Francisco-based Woodruff Sawyer in April 2025 and more than 30 smaller transactions. In the first quarter, it reported nine additional acquisitions, including Bremen, Germany-based Krose GmbH & Co. Acquisitions contributed $3.5 billion in annualized revenue, Mr. Gallagher said. Annualized revenue gives a sense of the acquired businesses’ scale at a stated pace; it doesn’t by itself show how much revenue will be retained, or what the deals will contribute to profit after integration costs.
That pace raises the usual question for a broker growing through deals: can systems and people keep up with the added scale? Mr. Gallagher said AssuredPartners producers are using Gallagher’s investments in information technology, artificial intelligence and digitization. Technology can help standardize work across a larger organization, but it can’t by itself preserve client relationships or make different teams work well together. This is more significant than it looks: the value of an acquisition depends partly on whether the acquired producers can keep serving clients while drawing on the larger company’s resources.
A diversified earnings mix
Gallagher’s business spans property and casualty, employee benefits, reinsurance and third-party claims administration through Gallagher Bassett. “We have a different mix than all of our major competitors,” Mr. Gallagher said, pointing to the benefits business and Gallagher Bassett’s multibillion-dollar scale. He said Gallagher Bassett is growing 10% organically and gives the company direct visibility into claims. A mix of businesses can spread revenue across different client needs, though it doesn’t remove exposure to a broad slowdown or make every segment perform equally well.
C. Gregory Peters, managing director of equity research at Raymond James & Associates in Saint Petersburg, Florida, said Gallagher has preserved its producer-led culture while building out back-office functions. In his view, that combination supports revenue growth, margin expansion and dealmaking. He also said Gallagher grew revenue and profit despite slower U.S. employment growth weighing on exposure growth. The distinction between employment trends and company results is useful: slower hiring can constrain some sources of brokerage growth, while pricing, client activity, acquisitions and execution still affect the outcome.
Steve Germundson, a partner at Optis Partners in Eden Prairie, Minnesota, sees the company’s industry expertise and client relationships as a source of resilience as technology advances. Businesses with those strengths, he said, are positioned to benefit from new tools rather than be displaced by them. That view rests on a practical point: insurance clients often need help interpreting risks and arranging coverage, not just processing information. And yet, technology’s effect will depend on whether tools improve that work in ways clients value.
AI shifts from trials to daily operations
Gallagher is applying AI to claims summaries, client risk analysis, producer workflows and customer service. Mr. Gallagher said the systems now handle 500,000 emails a month, review 190,000 policies using AI, and support 6,900 employees trained on Copilot. In May, the company introduced Blueprint, an AI-supported tool that assesses middle-market clients’ risk profiles and identifies improvements that could make them more attractive to insurers. These uses place AI inside recurring tasks, where the business case can be judged by whether employees save time, produce more useful analysis or serve clients better.
“We are making ourselves a stronger player as an adviser,” Mr. Gallagher said. Peters said investor concerns about AI-driven disintermediation have weighed on brokers, but he sees near-term operational gains for Gallagher. Lower software development and infrastructure costs could also improve the company’s cost profile, he said. Mr. Gallagher’s view is that AI can make Gallagher faster while leaving its advisory role intact. That remains a management argument, not a settled outcome: the company’s own figures describe adoption and activity, while the longer-term effect on service quality and costs is still to be demonstrated.
Here's the thing: high usage counts establish that employees are using the tools, but they don’t establish how much value the tools create. (And this is the part most people overlook.) If you're working in this space, the distinction matters: a system can process more material without improving the judgment that clients rely on. Operational gains, if sustained, could still help a large broker handle more work as it grows. A more demanding test is whether those gains show up alongside strong client service and organic growth.
Deal capacity and the next test
Mr. Gallagher acknowledged that deal activity has slowed, but said the company doesn’t plan to retreat from acquisitions. “We’ve got $10 billion of free cash flow to utilize over the next two years,” he said. After a year of integrating AssuredPartners while continuing to buy businesses, Gallagher’s next test is whether it can convert that financial capacity and its expanding technology into sustained organic growth. The stated cash flow gives the company room to pursue deals, but capacity alone doesn’t show which opportunities it will choose or how well future purchases will fit.
For investors and competitors, the useful question is how the pieces develop together. Acquisition-led expansion can add clients, producers and capabilities; internal growth can indicate whether the existing organization is also gaining ground. Gallagher’s 6% organic growth offers evidence on that second point, while its scale and claims about AI adoption provide context for its strategy. The numbers here are encouraging, but they don’t settle the execution question. Sustained growth will depend on keeping producers productive, integrating new businesses and making technology useful in daily work. The proof will come in results over time.