10 Largest HR Consulting Firms In The World

In today’s rapidly evolving workplace, the importance of human resources has never been clearer. A robust human resource department is essential for seamless hiring, effective training, and efficient administration, ultimately driving overall business success across various industries.

As organizations recognize that exceptional employees are the cornerstone of success, many are increasingly turning to large management and human resources consulting firms to attract, hire, and retain top talent.

When it comes to human resources, businesses of all sizes frequently rely on consulting companies for their expertise.

Globally, several major players dominate the HR consulting landscape. Below, we present a list of the ten largest human resources consulting firms in the world, ranked by their latest reported annual revenues.

Here are the world’s top 10 largest HR consulting firms:

1. Accenture. Dublin, Ireland

   2023 Annual Revenue: $61.6 billion
   Number Of Employees: 721,000

   Accenture is at the forefront of HR consulting, employing over half a million people worldwide. Headquartered in Ireland, it operates in more than 120 countries, including the United States. Accenture is known for leveraging diversity as a catalyst for innovation, serving over 6,000 clients, including major tech firms and security companies. Additionally, it ranks highly on the Refinitiv Diversity and Inclusion Index.

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2. Deloitte. New York, United States

   2023 Annual Revenue: $59.3 billion
   Number Of Employees: 415,000

   Deloitte is a leading management consultancy providing human capital, strategy, operations, and technology services to a diverse range of public and private organizations. With over 400,000 employees globally, Deloitte Consulting LLP is not only the largest HR consulting firm in revenue but also in employment within the United States.

   Deloitte emphasizes human resources, talent management, and organizational policies, applying insights from market research and analytics to enhance leadership and drive HR initiatives.

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3. Ernst & Young. London, United Kingdom

   2023 Annual Revenue: $45.4 billion
   Number Of Employees: 365,399

   Ernst & Young (EY) aims to “build a better working world” through its consulting practice. The firm utilizes the power of people, innovation, and technology to guide organizations, from startups to Fortune 500 companies, toward success. Its services include auditing and financial consulting, which remain integral to its business model.

   Since its establishment in 1989, EY has expanded its consulting services to encompass 28 regions globally, operating over 700 offices in more than 150 countries.

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4. Aon Hewitt. London, United Kingdom

   2023 Annual Revenue: $12.5 billion
   Number Of Employees: 50,000

   Aon Hewitt specializes in human resources, management, risk, retirement, and health consulting for clients in over 100 countries. With a dedicated team of 50,000, Aon Hewitt tackles business challenges directly, offering comprehensive solutions in areas such as health benefits, retirement plans, talent management, and mergers and acquisitions.

   Aon’s talent consulting services stand out by assisting clients in optimizing their recruitment processes and improving employee engagement.

5. Boston Consulting Group. Boston, United States

   2023 Annual Revenue: $11.7 billion
   Number Of Employees: 21,000

   Founded in 1963, Boston Consulting Group (BCG) is recognized as one of the “big three” consulting firms alongside Bain & Company and McKinsey & Company. BCG focuses on leveraging human potential to drive strategic, organizational, and economic change. It serves clients across various sectors, including private, public, and non-profit organizations.

   Today, BCG has a presence in over 50 countries and collaborates with some of the world’s largest corporations.

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6. McKinsey & Company. New York, United States

   2023 Annual Revenue: $10.5 billion
   Number Of Employees: 30,000

   With a history dating back to 1926, McKinsey & Company offers HR consulting services globally, operating in over 100 offices across 60 countries. The firm is dedicated to helping organizations navigate change and achieve their goals through expert guidance in human resources and management consulting.

   While McKinsey does not publicly disclose its revenue, expert estimates indicate an annual revenue of approximately $10.5 billion as of 2023.

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7. Willis Towers Watson. London, United Kingdom

   2023 Annual Revenue: $8.9 billion
   Number Of Employees: 45,000

   Willis Towers Watson provides risk management, insurance brokerage, and HR consulting services to clients worldwide. Specializing in optimizing benefits, assessing risk, and nurturing talent, the firm has a rich history dating back to 1828 and focuses on delivering client success and integrity.

   In March 2020, Willis Towers Watson was acquired by Aon, enhancing its service offerings in the HR consulting space.

8. Bain & Company. Boston, United States

   2021 Annual Revenue: $5.8 billion
   Number Of Employees: 12,000

   Bain & Company is renowned for its HR consulting services, focusing on talent design and development to drive business success. Established in 1973 and headquartered in Boston, Bain operates in 26 countries and emphasizes the importance of customizing talent strategies to achieve high returns on investment.

   Although Bain does not disclose its revenue, estimates suggest it earned approximately $5.8 billion in 2021.

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9. Oliver Wyman. New York, United States

   2023 Annual Revenue: $2.8 billion
   Number Of Employees: 6,000

   Founded in 1984, Oliver Wyman is a management and HR consulting firm with over 60 offices worldwide. As part of the Oliver Wyman Group, owned by Marsh McLennan, the firm serves a multitude of industries, focusing on strategy, risk, and operational improvement.

10. Mercer. New York, United States

    2023 Annual Revenue: $2.281 billion
    Number Of Employees: 25,000

    Mercer is also a subsidiary of Marsh McLennan, focusing on employee healthcare and investment consulting. With a mission to “build brighter futures,” Mercer has been a leader in health, retirement, and talent consulting for over 75 years, operating in more than 130 countries.

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HR Consulting Firms FAQ

1. What is the largest consulting company in the world?

   The largest consulting company in the world is Accenture, which generated $61.6 billion in revenue in 2023 and employs 721,000 individuals globally. Deloitte and Ernst & Young follow closely behind.

2. Does McKinsey do HR consulting?

   Yes, McKinsey offers HR consulting services. Since its establishment in 1926, the firm has been operating in 65 different countries.

3. What is the highest-paid HR consultant?

   The highest-paid HR consultants typically earn around $95,000 annually. The median salary for an HR consultant is $71,882, while entry-level positions often start closer to $53,000.

Author

Elsie Boskamp

Elsie is an experienced writer, reporter, and content creator. As a leader in her field, Elsie is best known for her work as a Reporter for The Southampton Press, but she can also be credited with contributions to Long Island Pulse Magazine and Hamptons Online. She holds a Bachelor of Arts degree in journalism from Stony Brook University and currently resides in Franklin, Tennessee.