EY vs KPMG
Side-by-side comparison of AI visibility scores, market position, and capabilities
Big Four professional services partnership at $51.2B FY2024 revenue (+3.9%); CEO Janet Truncale launched EY.ai Agentic Platform with NVIDIA (150 agents, 80K professionals) competing with Deloitte and PwC for global audit and consulting.
About
EY (Ernst & Young) is a London-based global professional services partnership — one of the Big Four accounting and consulting firms — generating $51.2 billion in record annual revenue in fiscal year 2024 (+3.9%), with approximately 393,000 professionals operating across more than 700 offices in over 150 countries and territories. EY's roots trace to 1903 when Alwin C. Ernst and Theodore Ernst founded Ernst & Ernst in Cleveland, Ohio; the modern EY emerged from the historic 1989 merger of Ernst & Whinney and Arthur Young & Co. EY's integrated service model spans assurance (the highest-revenue segment among Big Four peers), consulting, strategy and transactions through EY-Parthenon (created via the 2014 acquisition of The Parthenon Group), and tax services. In July 2024, Janet Truncale became EY's Global Chair and CEO, the first woman to lead the firm. In 2025, EY launched the EY.ai Agentic Platform in partnership with NVIDIA, deploying 150 AI agents supporting 80,000 EY professionals across tax, risk, and finance domains to surpass 3 million tax compliance outcomes annually.
Big Four professional services network at $38.4B FY2024 revenue (+5.4%, highest Big Four growth); CEO Bill Thomas with KPMG Clara AI audit, $100M Google Cloud investment, and Hippocratic AI partnership across 143 countries.
About
KPMG is a global professional services network — registered in the Netherlands and headquartered in Amsterdam — operating as one of the Big Four accounting and consulting firms with 275,288 employees across 143 countries and over 90 offices in the United States alone. In fiscal year 2024, KPMG achieved record global revenue of $38.4 billion, representing 5.4% growth in US currency — the highest year-over-year revenue growth rate among the Big Four firms. All three core service lines achieved growth, led by tax and legal services at 9.9% growth. Under Global Chairman and CEO Bill Thomas (since 2017), KPMG has invested $100 million in its Google Cloud practice and launched KPMG Clara (its smart audit platform powered by AI), acquired LlamaZOO for 3D visualization capabilities, and partnered with Microsoft, Google Cloud, and Hippocratic AI for healthcare AI. KPMG has earned a place on Fortune's 100 Best Companies to Work For list for 18 consecutive years. The modern KPMG firm formed on January 1, 1987, when Peat Marwick merged with Klynveld Main Goerdeler (KMG) in what was then the largest accounting merger in history with combined worldwide revenues of $2.7 billion, honoring founding partners Klynveld, Peat, Marwick, and Goerdeler.
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