Transactions and Corporate Finance by EY-Parthenon 

EY-Parthenon works with CEOs and business leaders to shape high-impact M&A strategy and corporate finance decisions. We help organizations evaluate growth opportunities, optimize portfolios, and execute deals with confidence—from strategic diligence and valuation through integration or separation.

Our senior advisors bring investor-grade insight, deep industry experience, and disciplined execution across every stage of the deal lifecycle. Backed by EY’s global network, we help leaders accelerate transformation and deliver measurable value.



Our Solutions
Reimagine your strategy and realize your transformation plans. Select a topic to see more.


Get in touch
Talk to us about how to reimagine your strategy and realize your transformation plans.

Strategic Case Studies



#1 Global M&A Accountant Advisor 2025 — EY-Parthenon

Mergermarket’s latest for top M&A transaction advisor by both deal value and volume globally, and across key markets including Australia, France, Germany, Japan, Singapore, and USA.

M&A


Analysis of UK Profit Warnings

Our quarterly analysis provides you with insights into profit warning trends and key economic, sector and market issues facing UK businesses.

Coffee shop shopping relaxation purchasee youth concept

Our latest thinking

Geostrategic Analysis: October 2026

Read the October 2026 Geostrategic Analysis for our take on geopolitical developments and the impact of these political risks on international business.

How can CEOs turn AI productivity gains into lasting value?

Learn why CEOs are investing in AI, talent and portfolio transformation to convert productivity gains into growth and long-term value.

How capital allocation can rebalance capitalism in a changing world

Capitalism is under pressure. Six pivots could rebalance incentives, improve resilience and support long term value creation. Explore more.

Transact to transform: How a human focus can unlock deal value

Transactions which have a bold vision, prioritize the workforce and set conditions to navigate hurdles are more likely to transform a business. Learn more.

Liz Fealy + 2