Arthur J. Gallagher & Co. vs Blackstone Inc.
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 alternative asset manager (NYSE: BX) at $1.2T AUM; 2024 revenue $11.37B (+53%), AirTrunk A$24B Asia-Pacific data center acquisition, distributable earnings $6B competing with Apollo and KKR.
About
Blackstone Inc. is a New York City, New York-based alternative asset management company — publicly traded on the New York Stock Exchange (NYSE: BX) as an S&P 500 Financials component — managing $1.2 trillion in assets under management across private equity, real estate, credit and insurance, and hedge fund solutions through approximately 4,900 employees serving institutional investors, sovereign wealth funds, pension funds, insurance companies, and high-net-worth individuals globally. Founded in 1985 by Stephen Schwarzman and Peter G. Peterson, Blackstone grew from a boutique M&A advisory into the world's largest alternative asset manager. In fiscal year 2024, Blackstone reported revenue of $11.37 billion (+53% year-over-year) and distributable earnings of $6.0 billion (+18%), reflecting strong performance across its diversified alternative asset portfolio. AUM reached $1.2 trillion by mid-2025. CEO Steve Schwarzman and President Jonathan Gray lead the firm. Blackstone's landmark 2024 transaction was the A$24 billion acquisition of AirTrunk — Asia-Pacific's largest data center platform — through its real estate funds, positioning Blackstone as a dominant owner of AI infrastructure in the world's fastest-growing digital economy.
AI Visibility Head-to-Head
Key Details
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.