EY (Ernst & Young) is one of the largest professional services firms in the world, known for its global network, high-quality services, and commitment to building a better working world. Headquartered in London, United Kingdom, EY is one of the “Big Four” accounting firms, alongside Deloitte, PwC, and KPMG.

Founded through the merger of Ernst & Whiney and Arthur Young in 1989, EY has a rich legacy in the areas of accounting, audit, tax, consulting, and advisory services. The company’s history dates back even further, with Arthur Young & Co. founded in 1906 and Ernst & Whiney tracing its roots to the early 20th century.

Today, EY operates in more than 150 countries and employs over 400,000 professionals worldwide. These individuals work collaboratively across borders, industries, and cultures, serving multinational corporations, governments, startups, and public sector clients.

EY is structured as a global organization made up of separate legal entities in each country, which operate as member firms of Ernst & Young Global Limited (EY Global) — a UK company limited by guarantee. This structure allows EY to provide seamless service delivery while adhering to local regulations and business environments.

EY offers services across four primary service lines:

1. Assurance (Audit) – Financial statement audits, financial reporting advice, and regulatory compliance services.

2. Consulting – Strategy, transformation, digital innovation, cybersecurity, and customer experience consulting.

3. Tax – Domestic and international tax planning, transfer pricing, compliance, and controversy services.

4. Strategy and Transactions (Sat) – M&A advisory, due diligence, valuations, restructuring, and capital markets services.

EY is known for its innovation-driven mindset. The firm heavily invests in technology and digital transformation, making use of AI, blockchain, data analytics, and automation to enhance client services. Tools like EY Canvas (for audits), EY Tax Chat, and the EY Mobility Pathway demonstrate how the company integrates technology into its core offerings.

A core part of EY’s identity is its purpose: “Building a better working world.” This mission underlines all of its strategic efforts, from helping clients solve complex challenges to contributing to sustainable and inclusive economic growth.

EY is also a leader in diversity, equity, and inclusion (DEI) initiatives. The company actively promotes workplace equality through programs aimed at gender balance, LGBTQ+ inclusion, disability support, and cultural diversity.

Sustainability is another key focus area. EY has committed to becoming carbon negative by 2021 and net zero by 2025, which includes reducing emissions, investing in carbon removal projects, and promoting sustainable practices internally and externally.

EY has received numerous awards and accolades over the years for its service quality, ethical business practices, and as an employer. It frequently appears on Fortune’s “100 Best Companies to Work For”, DiversityInc’s Top 50 Companies for Diversity, and LinkedIn’s Top Companies lists.

The company’s EY Global Innovation Centers (EY wave space) bring together multidisciplinary teams to co-create solutions and accelerate digital transformation. These hubs are located in major cities like New York, London, Bangalore, and Shanghai.

EY is also widely known for the Entrepreneur Of The Year (EOY) awards — a global program that recognizes high-impact entrepreneurs across industries for their innovation and leadership.

In India, EY operates through EY India, with offices in major cities including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, and Kolkata. EY India is a key growth market and contributes significantly to the firm’s global operations, particularly in service delivery, consulting, and digital innovation.

The firm’s global leadership team, including its Global Chairman and CEO, drives strategy and governance to align with evolving market needs and ensure ethical business practices.

Overall, EY is more than just an accounting firm. It’s a strategic advisor, a tech innovator, a sustainability advocate, and a global leader in professional services. Its commitment to long-term value creation for businesses, governments, and communities reflects its deep impact on the global economy