improveo
help
EY-Parthenon
Help CEOs create long-term value from strategy to execution
Company Information
star

Conpas Rating

-

public

Website

http://www.ey.com/parthenon/
info

Overview

At EY-Parthenon, 9,000+ multidisciplinary professionals in teams across 120 countries help provide EY clients with corporate, transaction and turnaround strategies that are actionable, impactful and provide long-term growth.

Groups

Number of Employees

5,001-10,000

settings_suggest

Services Provided

Consulting

Capabilities
Industries
Footprint
location_on

Regions

Africa, Asia, Europe, Latam, Middle East, North America, Oceania

map

Countries

Albania, Algeria, Angola, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bangladesh, Barbados, Belgium, Bolivia, Bosnia And Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Cambodia, Cameroon, Canada, Chile, China, Colombia, Costa Rica, Croatia, Cyprus, Dominican Republic, Ecuador, Egypt, El Salvador, Estonia, Fiji, Gabon, Germany, Ghana, Greece, Guatemala, Guinea, Guyana, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Latvia, Lebanon, Liechtenstein, Lithuania, Luxembourg, Macau, Malawi, Malaysia, Maldives, Malta, Mauritius, Mexico, Moldova, Mongolia, Montenegro, Morocco, Mozambique, Myanmar, Namibia, Netherlands, New Zealand, Nicaragua, North Macedonia, Norway, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Rwanda, Saint Lucia, Saudi Arabia, Senegal, Serbia, Singapore, Slovakia, Slovenia, South Africa, Spain, Sri Lanka, Sweden, Switzerland, Syria, Tanzania, Thailand, Trinidad And Tobago, Tunisia, Turkey, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States Of America, Uruguay, Uzbekistan, Venezuela, Vietnam, Zambia, Zimbabwe

Additional Information
calendar_today

Year of foundation

1991

lan

Structure

Privately Held

Share this profile
About

About Us

Transformative Strategy and Transactions, Built for the Real World

EY-Parthenon is one of the world's largest strategy and transactions consulting organizations, with 25,000+ professionals operating across 120+ countries. Founded in 1991 as The Parthenon Group by former Bain & Company directors William Achtmeyer and John Rutherford, and merged with Ernst & Young in 2014, we have grown from a boutique strategy firm to a global powerhouse that sits at the intersection of corporate strategy, transactions, and transformation. We design, develop and deliver end-to-end solutions that work in practice — not just on paper. With deep functional and sector expertise, paired with innovative AI-powered technology and an investor mindset, we partner with CEOs, boards, private equity and governments at every step of their transformation journey — helping them to shape the future with confidence. Our connected solutions combine integrated strategy, transactions and transformation capabilities, further enhanced by the full spectrum of EY services across assurance, consulting and tax. Whether navigating geopolitical uncertainty, digital disruption, or complex M&A, we bring outside-in insights, data analytics, and rapid execution to your toughest strategic challenges.

Who we are

A Team of Extraordinary Problem-Solvers

We are 25,000+ multidisciplinary professionals who bring together deep industry expertise, advanced analytics, and an investor's mindset to help our clients move quickly from idea to implementation. Our culture is built around collaboration, entrepreneurial thinking, and a relentless focus on client impact. We value diversity and inclusion as cornerstones of successful teams and businesses — and we actively foster an environment where every voice is heard and every perspective drives better outcomes. Passionate about local communities, mentorship, and continuous learning, we are united by a shared mission: to build a better working world.

What we do

Strategy Realized — From Ambition to Measurable Results

We help CEOs and business leaders design and deliver transformative strategies across the entire enterprise. Our work spans corporate and commercial strategy, mergers and acquisitions, divestitures, restructuring and turnaround, sustainability and ESG strategy, digital and software strategy, geostrategic advisory, and corporate venture building. Underpinned by our AI-powered EY-Parthenon Edge platforms, we combine sector intelligence with decades of experience to help clients find better answers to their toughest questions — and deliver those answers at speed and scale.

Our Purpose

Building a Better Working World

At EY-Parthenon, our purpose is building a better working world. The insights and services we provide help to create long-term value for clients, people and society, and to build trust in the capital markets. We are not just interested in financial results — we also look at new types of value, measuring societal, environmental and human aspects of our clients' strategies to help create value for a broad range of stakeholders.

Our Values

How We Work — The Principles That Drive Us

We are outcome focused — finding practical solutions that yield measurable and sustainable results. We bring an investor mindset to every engagement, combining rigorous strategic thinking with the discipline to execute at scale. We believe in the power of diverse and inclusive cultures, and in the importance of asking better questions to unlock new answers. When time is critical, our experienced problem-solvers rapidly turn ideas into action — giving our clients speed and certainty.

Why working with us

The EY-Parthenon Edge — Why Leaders Choose Us

We are consistently ranked among the world's best strategy consulting firms — recognized by Forbes as one of the World's Best Management Consulting Firms 2025, ranked as a leader in the IDC MarketScape: Worldwide Enterprise Strategy Consulting Services 2025, and named 4th globally in the Vault Consulting 50. We advised on nine of the top 15 global deals in 2025. What sets us apart is our unique combination of transformative strategy, transactions, tax and corporate finance — backed by EY's global network of 400,000+ professionals in 146 countries. We take an investor mindset to your strategic agenda, helping you drive reinvention through capital, resources and execution. Our proprietary AI-powered Edge platforms blend sector intelligence with decades of experience to unlock new value — giving you a decisive advantage in a complex, fast-moving world.

Sustainability

Making Business Work for Sustainability — and Sustainability Work for Business

EY-Parthenon is committed to making business work for sustainability and making sustainability work for business. Our Sustainability and ESG Strategy Consulting teams help clients — whether public or private companies, government institutions, or financial stakeholders — transform their sustainability and ESG strategy to protect and create new sources of long-term value. We address challenges including decarbonization and energy transition, eMobility, sustainable sourcing, and ensuring human rights in the supply chain. Our Climate Tech Acceleration team drives impactful climate tech solutions, and our Geostrategic Business Group helps clients manage political and regulatory risk as part of their sustainability journey.

Inclusion & Diversity

Inclusive by Design — Diversity as a Cornerstone of Success

At EY-Parthenon, diversity and inclusion are not just values — they are cornerstones of successful teams and businesses. We actively promote a culture of inclusivity through structured programs including mentorship, leadership training, and employee resource groups (ERGs) that support underrepresented groups in consulting. We are inclusive by design — seeking out and embracing diverse perspectives, valuing differences, and building teams where safety and trust allow every individual to bring their best.

Awards & Accreditations

Recognized Among the World's Best

EY-Parthenon has been recognized as one of Forbes' World's Best Management Consulting Firms 2025, based on peer and client surveys across 13 industries and 15 functional areas. In 2025, EY-Parthenon was ranked as a leader in the IDC MarketScape: Worldwide Enterprise Strategy Consulting Services. In ... See more

View more