Arthur J. Gallagher & Co. vs MarketAxess
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.
New York electronic bond trading (NASDAQ: MKTX) $763M FY2024 revenue; Open Trading $2T+ liquidity, 40% US IG bond electronification, portfolio trading growth competing with Tradeweb and Bloomberg.
About
MarketAxess Holdings Inc. is a New York City-based electronic fixed income trading platform — publicly traded on the NASDAQ (NASDAQ: MKTX) as an S&P 500 Financials component — operating the leading electronic trading marketplace for US investment-grade corporate bonds, US high-yield bonds, emerging market bonds, municipal bonds, and US Treasury securities through approximately 850 employees globally. In fiscal year 2024, MarketAxess reported revenues of $763 million with record trading volumes in US investment-grade bonds and emerging market credit, as the multi-year electronification trend in bond markets continued to shift institutional fixed income trading from voice broker-dealer phone execution to electronic all-to-all trading on MarketAxess's Open Trading marketplace. CEO Chris Concannon (joined 2023, formerly Cboe Global Markets president) leads MarketAxess's strategy of expanding market share beyond the institutional investment-grade core into rate products (US Treasuries, agency securities), high-yield, and portfolio trading as fixed income electronification accelerates — currently approximately 40% of US investment-grade bonds trade electronically versus 15% in 2015. MarketAxess's Open Trading protocol (anonymous all-to-all price discovery between buy-side, sell-side, and market makers) generated over $2 trillion in liquidity provision in 2024, reducing transaction costs versus bilateral dealer quotes by an average of $0.28 per $100 face value.
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