Arthur J. Gallagher & Co. vs Fiserv
Side-by-side comparison of AI visibility scores, market position, and capabilities
Rolling Meadows IL insurance brokerage (NYSE: AJG) ~$14B combined revenue; $13.45B AssuredPartners acquisition (industry largest), +10,900 employees, 400 offices, third largest global broker competing with Marsh McLennan.
About
Arthur J. Gallagher & Co. is a Rolling Meadows, Illinois-based global insurance brokerage and risk management company — publicly traded on the New York Stock Exchange (NYSE: AJG) as an S&P 500 Financials component — providing commercial property/casualty insurance brokerage, employee benefits consulting, and risk management services to businesses and organizations worldwide through approximately 58,000 employees following the completion of the AssuredPartners acquisition. The defining transaction of 2025 was Arthur J. Gallagher's closing of the $13.45 billion acquisition of AssuredPartners — the largest sale of a US insurance broker to a strategic acquirer in industry history — adding 10,900 employees, approximately $2.9 billion in pro forma revenues, and 400 offices across the United States, United Kingdom, and Ireland, with particular middle-market strength in transportation, energy, healthcare, and government contracting. The AssuredPartners combination accelerates Gallagher's position as the third-largest insurance broker globally (behind Marsh & McLennan and Aon), with combined annual revenues exceeding $14 billion. CEO J. Patrick Gallagher Jr. has led the company's strategy of organic growth supplemented by a relentless acquisition program of regional and specialty insurance brokers — Gallagher has completed 40-50+ acquisitions per year in recent years — building a national and international distribution network that can cross-sell specialty insurance products across AssuredPartners' 400 acquired office locations. Gallagher's Risk Management Services division (claims adjusting and administration for self-insured corporations and government entities) provides a second business line that diversifies revenue from insurance brokerage commission and fee income.
Fintech giant with $20.5B FY2024 revenue; Clover POS serves 800,000 SMBs with app ecosystem; 10,000 bank clients; $22B First Data acquisition 2019 created commerce and banking technology powerhouse.
About
Fiserv is one of the world's leading fintech and payments companies, founded in 1984 through the merger of First Bank System's data processing operations and Sunshine State Systems in Brookfield, Wisconsin and now headquartered in Milwaukee, Wisconsin, trading on NYSE (FI—ticker changed from FISV in 2024). The company generated approximately $20.5 billion in revenues for FY2024 under CEO Frank Bisignano, operating across two core segments: Merchant Solutions (payment acceptance and commerce enablement for merchants) and Financial Solutions (banking and payment technology for financial institutions). Fiserv's 2019 acquisition of First Data Corporation for $22 billion—the largest fintech merger in history at the time—transformed Fiserv from a primarily bank-serving technology company into a commerce and payment giant, bringing the Clover point-of-sale ecosystem, payment gateway capabilities, and global merchant acquiring infrastructure.
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