Strategy by EY-Parthenon

In today’s fast-paced world, C-suite and business leaders must truly be effective at driving value creation across their organization.

EY-Parthenon is a transformative strategy and transactions consultancy that provides real-world value: solutions that work in practice not just on paper.

Setting and executing a strategy to create and optimize value for all stakeholders has never been more challenging. CEOs need to consider and take bold and transformative steps such as setting strategic directives in light of radically shifting customer and market dynamics, leading disruptive innovation in their sector, pursuing and optimizing inorganic growth strategies, defining and implementing organic growth strategies and embedding sustainability into their business model.

With more than 25,000+ strategy professionals in more than 150 countries, we have reimagined strategy to work in an increasingly complex world. EY-Parthenon professionals continually answer the “What?” and the “How?” questions on the CEO agenda to help achieve their strategic objectives and shape their future with confidence. 

Strategy Consulting Solutions

We tailor every engagement to our clients’ unique situation and bring extensive outside-in business and sector experience supported by leading AI-powered technologies to give you the confidence that any strategy we recommend will work in the real world. Our strategy consulting solutions, span the full enterprise and investment lifecycle. Click on a solution to learn more.

Corporate and Growth Strategy

EY-Parthenon professionals can help your business design and provide transformative strategies for sustainable growth. Learn more.

EY-Parthenon Geostrategic Business Group

The Geostrategic Business Group can help translate geopolitical insights into business strategy to help manage political risk. Find out how.

Neurosymbolic AI Services to Drive Growth

Discover how EY-Parthenon teams use neurosymbolic AI to convert complex, distributed data into high-value AI products that fuel revenue and profit growth. Learn more.

Software Strategy Consulting Services

Learn more about how EY-Parthenon Software Strategy Consulting teams apply real-world software CTO and CPO expertise to drive value.

Sustainability and ESG Strategy Consulting

Our Sustainability and ESG Strategy Consulting teams can help you with strategy, M&A, capital allocation, ESG due diligence and portfolio optimization.

Restructuring and Turnaround Strategy

EY-Parthenon Restructuring and Turnaround Consulting professionals can help your business transform, create, preserve and recover value. Find out how.

Strategic Shareholder Engagement Support

To respond and prepare for increasing shareholder activism, companies must enhance mid- to long-term corporate value and gain the trust of capital markets by developing and implementing a growth strategy that incorporates insights gained from constructive dialogue (engagement).

Why EY-Parthenon for Strategy Consulting

EY-Parthenon teams bring a distinctive approach to strategy consulting that combines rigorous strategic thinking with the discipline of an investor and the ability to execute at scale. We operate at the intersection of strategy, M&A, capital allocation and transformation, helping leadership teams make bold choices, reallocate resources with confidence and translate strategy into action.

What differentiates our Strategy Consulting approach:

Our combination of strategy and execution helps enable us to provide real-world value to our clients. Benefiting from EY broad spectrum of services, we’ve reimagined strategic consulting to work in a world of increasing complexity.

The EY-Parthenon team

Manabu Shinohara

EY-Parthenon Japan Strategy and Transformation Leader, Strategy and Execution Leader; Partner, EY Strategy and Consulting Co., Ltd.

A leader in strategy advisory services that cover everything from value-increasing strategies to the use of external resources (M&A, etc.).

Yoshimasa Sakata

EY-Parthenon Japan Markets Leader; Strategy and Execution Deputy Leader, EY Strategy and Consulting Co., Ltd.

Deep consulting experience in the Shosha sector. Cross-border and domestic transaction strategy and operations focusing primarily on integration, carve-outs, and organizational transformation.

John van Rossen

EY-Parthenon Global Strategy and Execution Leader

Driven by purpose and motivated to always help colleagues and clients find a better way of doing things. Fascinated by military history. Podcast addict. Curious nerd.

London, United Kingdom

Behnaz Saboonchi

EY-Parthenon Partner, Strategy and Transactions, Ernst & Young LLP

Corporate strategist. AI and digital supply chain executive. Advisory board member. Public speaker. BIPOC professional women mentor. Mother.

Montréal, Canada

Igor Mikhalev

EY-Parthenon Partner, Strategy and Transactions, EY-Parthenon Adviseurs B.V.; EY-Parthenon Europe West Head of Emerging Technologies Strategy; EY-Parthenon Netherlands AI Strategy Lead

Deep strategy. Deep tech. Creative and visionary. Hands-on yet big-picture thinker.

Amsterdam, Netherlands

Mark Reich

EY-Parthenon Global Strategy and Transactions Chief Data Officer

Technology, data, value creation expert in M&A. Connecting investors, corporates and disruptors. DJ and ice hockey player.

Amsterdam, Netherlands

Marco Duso

EY-Parthenon Global Sustainability Leader; Partner, Strategy and Transactions, EY Advisory S.p.A.

Driven to achieve net zero. Entrepreneur and business founder. Passionate about mentoring and inspiring others. Married with one daughter. Loves traveling, sports and cooking.

Oliver Jones

EY Global Leader, Client Insights and Research; EY-Parthenon Geostrategy Leader

Passionate about providing outstanding support to governments and businesses in a fast changing world. Deeply committed to excellence in public policy. Team builder. Mentor. Flexible worker. Husband and father of three.

London, United Kingdom

Falco Weidemeyer

EY-Parthenon Global Strategic Transformation Leader and Global Turnaround & Restructuring Leader

Seasoned, internationally trained performance professional. CRO and turnaround manager. Experienced in consulting and industry functions. Passionate for outdoors.

Eschborn/Frankfurt (Main), Germany

Our latest thinking

Top 10 geopolitical developments in 2026

Geopolitical volatility and uncertainty will persist in 2026. There are three geostrategic actions to build resilience and set strategy. Learn more.

Oliver Jones + 1

How the drivers of private equity value creation are changing

Discover the five key drivers in private equity value creation in uncertain markets.

Bridget Walsh + 3

How a cosmetics giant’s transformation strategy is unlocking value

Shiseido, the largest Japanese beauty company, is reimagining its functions, processes and systems to create a global operating model. Learn more.

Nancy Ngou + 2

On the agenda (5)

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west

Transactions and Corporate Finance by EY-Parthenon

Transactions and Corporate Finance by EY-Parthenon

CEO agenda

CEO agenda

Business growth

Featured: Can disciplined ambition unlock growth in a volatile global economy?

CFO Agenda

Featured: How can treasurers transform to realize new value in a world of uncertainty?

AI Insights

Featured: Can AI advance toward value if workforce tensions linger?

east

EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients. For more information about our organization, please visit ey.com.

EY-Parthenon is a brand under which a number of EY member firms across the globe provide strategy consulting services.