EY-Parthenon
↗Boston, USA
EY-Parthenon is the global strategy consulting arm of Ernst & Young (EY), one of the 'Big Four' professional services networks. Formed in 2014 through the merger of EY and The Parthenon Group, the firm advises C-suite executives, boards, private equity firms, and governments on complex strategic issues, including corporate growth, M&A, divestitures, turnaround, and enterprise transformation.
Following a major expansion in 2025, EY-Parthenon operates as a 25,000+ strong professional organization across 150+ countries. It distinguishes itself by combining deep industry expertise with EY's broader global capabilities in audit, tax, and advisory services, leveraging proprietary AI-powered platforms like the 'Edge' suite to support data-driven strategy and transaction execution.
CLASSIFICATION
SIZE & FINANCIALS
Employees:10000+
Revenue:$1B-$10B
Founded:1991
Ownership:subsidiary
Status:operating
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CORPORATE STRUCTURE
Parent Company:Ernst & Young (EY)
Acquired By:Ernst & Young (EY) (2014-01-01)
Subsidiaries:T-Plus, EY Port Jackson Partners
Key Partnerships:Microsoft (AI collaboration), OpenAI (AI collaboration), Plug and Play (innovation ecosystem)
COMPETITION
Position:Leader
Competitors:McKinsey & Company, Boston Consulting Group (BCG), Bain & Company, Monitor Deloitte, Strategy& (PwC)
LEADERSHIP
Key Executives:
Andrea Guerzoni - Global Vice Chair, EY-Parthenon
LINKS
Website:parthenon.ey.com
LinkedIn:LinkedIn Profile
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