Brand Intelligence Graph
Company Overview
About EY
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.
Business Model & Competitive Advantage
EY's professional services model addresses the governance, compliance, and transformation needs of organizations that require externally validated expertise and independence that internal teams cannot provide: audit clients require Big Four credibility (EY's audit opinion on financial statements provides the third-party assurance that capital markets, regulators, and lenders require for publicly traded companies), while EY-Parthenon's strategy consulting practice (inherited from The Parthenon Group, known for work in private equity due diligence and corporate strategy) provides the analytical rigor and independence that management consulting engagements require. EY's global network structure (member firms in 150+ countries sharing methodologies, technology, and talent under the EY brand) enables multinational clients to use a single coordinated team for cross-border transactions, regulatory compliance across jurisdictions, and global audit work — a coordination advantage that regional accounting firms cannot match.
Competitive Landscape 2025–2026
In 2025, EY competes in the global professional services, Big Four accounting, and management consulting market with Deloitte ($67.2B revenue, the Big Four revenue leader), PwC ($55.4B revenue), and KPMG ($38.4B revenue) for multinational audit mandates, consulting project wins, and tax advisory relationships. The EY.ai Agentic Platform launch (150 AI agents, NVIDIA partnership) reflects EY's strategy to use AI to create productivity leverage across the 393,000-person workforce — particularly in tax compliance, where high-volume, rules-based work is most amenable to AI automation. The 10% workforce reduction over 18 months reflects the professional services industry's response to AI-driven productivity gains and post-pandemic consulting demand normalization. The 2025 strategy focuses on scaling the EY.ai platform across all service lines, differentiating EY-Parthenon in strategy consulting versus McKinsey, Bain, and BCG, and rebuilding consulting revenue growth after the failed Project Everest separation attempt in 2023.
The EY Story
Founders
Recent Activity
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Company Timeline
Major milestones in EY's journey
Leadership Team
Meet the leaders behind EY
Janet Truncale
Became EY Global Chair and CEO on July 1, 2024, succeeding Carmine Di Sibio. Previously served as Regional Managing Partner for EY Americas Financial Services Organization, leading over 14,000 professionals.
Carmine Di Sibio
Served as Global Chairman and CEO from July 2019 to June 2024, achieving compounded annual growth rate of 9.5% and adding $13 billion in revenue. After retirement, joined boards of PayPal and Prudential Financial.
Ray Groves
Served as one of two chief executive officers when Ernst & Whinney merged with Arthur Young in 1989, representing the Ernst & Whinney side of the historic merger.
William Gladstone
Served as one of two chief executive officers when Ernst & Whinney merged with Arthur Young in 1989, representing the Arthur Young side of the merger.
Alwin C. Ernst
Founded Ernst & Ernst in Cleveland, Ohio in 1903 with his brother Theodore. Developed an operating philosophy championing the importance of employees. Died in 1948.
Arthur Young
Founded Arthur Young & Co. in 1906 in Kansas City. Focused on professional development, creating schools for staff and recruiting from universities. Died in 1948, days after Ernst.
Key Differentiators
Market Leader
EY is recognized as a market leader in the Professional Services sector, demonstrating strong industry presence and customer trust.
Enterprise Scale
With $51.2B in revenue, EY operates at enterprise scale with proven market validation.
Frequently Asked Questions
Estimated Visibility Trend (Beta)
Simulated 8-week rolling score
Based on estimated brand signals. Historical tracking coming soon.
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