Top Consulting Firms in the World: Best Global Companies

Top Consulting Firms in the World are global companies that help businesses solve complex problems, improve operations, enter new markets, and build stronger growth strategies. Firms such as McKinsey & Company, Boston Consulting Group, Bain & Company, Deloitte, PwC, EY, KPMG, Accenture, Oliver Wyman, and Roland Berger are known for strategy, management consulting, technology transformation, finance advisory, risk, and operations consulting.

For students planning an MBA, MiM, or business master’s abroad, understanding the best global consulting companies is important because consulting remains one of the most preferred career paths after business school. In this blog, we will explain the leading consulting firms, what they are known for, why they matter for business graduates, and how MiM-Essay can help applicants choose the right schools to build a strong consulting career.

What is a Consulting Firm?

A consulting firm is a professional services company that helps businesses solve problems, improve performance, and make better decisions. These firms work with companies across areas like strategy, finance, technology, operations, marketing, risk, and business transformation. For example, a consulting firm may help a company enter a new market, reduce costs, improve digital systems, or plan long-term growth.

For students planning an MBA, MiM, or business master’s abroad, consulting firms are important because they are among the top recruiters at leading business schools. A career in consulting can offer strong learning, global exposure, client-facing experience, and fast career growth. This is why many applicants choose business schools based on consulting placements, recruiter access, alumni network, and post-master’s career outcomes.

How to become a Consultant?

To become a consultant, you need to build a mix of business knowledge, problem-solving skills, and client-facing confidence. Here are the key steps:

• Build a strong academic profile through degrees like MBA, MiM, MSc Management, Finance, Business Analytics, Economics, or related business programs.
• Develop problem-solving and analytical skills because consultants are expected to break down complex business problems and give practical solutions.
• Gain relevant experience through internships, live projects, case competitions, leadership roles, or industry exposure.
• Learn case interview preparation as top consulting firms often test candidates through business cases, market-sizing questions, and structured problem-solving rounds.
• Choose the right business school because top consulting firms recruit heavily from schools with strong career services, consulting clubs, alumni networks, and employer partnerships.
• Build a consulting-focused profile with a strong resume, clear career goals, leadership examples, and a good understanding of your target consulting firms.
• Get expert guidance if needed. MiM-Essay helps applicants shortlist the right business schools and build applications aligned with consulting career goals.

After following these steps, the next goal is to choose a business school that matches your consulting career plan. A strong MBA, MiM, or business master’s program can help you access consulting clubs, alumni mentors, case interview practice, and recruiter networks. For applicants who want to work with top consulting firms, MiM-Essay can help shortlist the right schools, improve application strategy, and build a profile that supports long-term consulting career growth.

List of Top Consulting Firms in World

Navigating the complex landscape of global consulting firms involves recognizing the elite players in the industry known for their unparalleled expertise, innovation, and impact across various sectors. The world of consulting, especially as recognized by the Financial Times Consulting Firms, is driven by firms that offer exceptional advisory services, strategic solutions, and unparalleled insights to organizations and businesses.

These top consulting firms in world powerhouses are renowned for their commitment to delivering transformative strategies, problem-solving, and fostering innovation. Their influence is felt across diverse industries, including finance, technology, healthcare, and management, making them critical drivers of global business innovation and success.

1. McKinsey Company

McKinsey & Company is a world-renowned management consulting firm. The company is based in America and was founded 92 years ago in 1926 by James O McKinsey and Marvin Bower.

The company provides its service worldwide. Its headquarters is located in New York City with 127 offices spread across the world. It has a network of more than 27,000 employees making it a billion dollar company with a revenue of more than 10 Billion!

It follows a strict culture of work and ethics with highly motivated and zealous employees. The company values traits like loyalty and integrity. It also offers some of the best Masters salary to its students.

2. The Boston Consulting Group, Inc.

Boston Consulting Group, Inc, also known as BCG. is a privately incorporated management consulting firm. It was founded by Bruce Henderson in the year 1963. The company has a revenue of $6.3 million as of 2017 with more than 90 offices at different locations across the world. It has more than 16,000 employees working worldwide.

It was among top 5 Consulting Companies as per Forbes World's Best Consulting Firms 2023. 

3. Bain & Company

Bain and Company is a top consulting firm specialized in the area of management consultancy. It was founded in the year 1973 and its headquarters are located in Boston, Massachusetts.  This is one of the most popular companies for MBA jobs. 

The company is an incorporated partnership with William W. Bain and Patrick F as its founders. The company showed rapid growth in the early ’80s and was successful in generating a revenue of $3.7-$4.5 Billion in the year 2017.

The company has its network spread in 59 locations worldwide with a force of 8,000 employees. It has a number of awards in its name such as Consulting Magazine’s 2016 “Best Firms to Work for” and was ranked in the Fortune magazine as the “100 best companies to work for” in the year 2018.

4. Deloitte

Deloitte Consulting LLP is the world’s largest management consulting firm and one of the big four accounting firms and has one of the largest professional networks worldwide.

It was founded in 1845 by William Welch Deloitte in London and further expanded its operation in New York in 1880. One can get a job here after persuing best degrees for future. The major services provided by Deloitte include Audit, Tax, Management Consulting, Financial advisory, Risk Advisory, and Legal.

Inside Public Accounting named Deloitte as #1 accounting firm in 2017, and is also listed as one of the “100 Best Companies to Work For” by Fortune magazine. The company generated revenue of US$43.2 Billion in 2018 and has a working staff of 286,200 across the world with more than 100 operational locations, including China, India and Hong Kong.

5. PricewaterhouseCoopers

PricewaterhouseCoopers is a multinational business offering professional service to its clients since 1998 and is one of the top management consulting firm in the world.

The company’s headquarters is based in London, United Kingdom and is known as the second largest professional services firm and also has its name amongst the Big Four Auditors.

It has a revenue of $41.3 Billion as of 2018 with 250,930 employees working worldwide. PwC has a network of firms in 158 countries, at 743 locations.

PricewaterhouseCoopers offers services in assurance, advisory, tax advisory, strategy consulting, tax controversy, data and analytics, management consulting, financial advisory, actuarial and legal.

6. Booz Allen Hamilton

Booz Allen Hamilton is a management and information technology consulting firm based in America. Its headquarters is located at Virginia in Greater Washington. It was founded in 1914 by Edwin G. Booz, James L. Allen, and Carl L. Hamilton. It has a revenue of US$5.48 Billion with an employee network of 22,000.

7. L.E.K. Consulting

L.E.K. Consulting is an international management consulting firm that offers professional services in corporate strategy, mergers, acquisitions, and operations. It has its headquarters in London, the UK with another in Boston, Massachusetts heading the US counterpart. L.E.K. was founded in 1983 by three individual partners from Bain & Company – James Lawrence, Iain Evans, and Richard Koch.

It has 1,200 employees in its 19 offices spread across the globe.

L.E.K Consulting was ranked as the most desirable management consulting employer for MBA students, as well as the 2nd most desirable employer overall for MBA students in 2017 and was also named as the ‘Strategic Consultants of the Year’ at the 2015 Health Investor Awards.

8. EY-Parthenon

EY Parthenon is a top management consulting firm focusing on delivering services in strategy, marketing, and operations. The Parthenon Group was founded in the year 1991 and later EY merge with Parthenon Group to expand and diversify their traditional auditing roots into additional profitable businesses.

Its headquarters is located in Boston, Massachusetts, United States. EY-Parthenon was listed in “The Best Management Consulting Firms” in Forbes 2018 list. The 4 main services EY-Parthenon provides to their clients are Investment Strategy, Transaction Evaluation, Corporate Strategy, and Value Optimization.

9. Strategy&

Strategy& is a renowned management consulting firm and a subsidiary alliance of PwC. It is recognized in providing excellent services in strategic consulting. Its headquarters is located in New York City, USA.

It was founded in the year 1914 as the Business Research Service, which was later renamed as Booze and Company. Later in 2008, Booze and Company was dissolved and was succeeded by Strategy&. The company has shown a remarkable growth with a revenue of more than US $1.3 billion. It offers employment to 3000 people in its 72 offices across the world.

10. Gartner, Inc.

Gartner Inc is a multinational public company founded in 1979 by Gideon Gartner. It is top research consulting firm extending its services in providing expert advice and tools for leaders in IT, Finance, HR, Customer Service, and Support, Legal and Compliance, Marketing, Sales, and Supply Chain functions across the globe. Its headquarters is located in Connecticut, USA.

Gartner has a large client network including big corporations, government agencies, technology companies, and the investment community. They have a strong client association with more than 12,000 organizations in over 100 countries. Gartner has a number of 15,000 employees working in around 100+ offices across the world. It generated revenue of US $3,3 billion in 2017 showing rapid growth in operative income and total assets.

11. Mercer LLC

Mercer LLC is a globally acclaimed multinational company and also the world’s largest human resource consulting firm. Founded in 1945, the company is a subsidiary firm of Marsh and McLennan. Mercer has its offices in more than 180 cities across 40 countries with an employee network of more than 21,200. The company has international relations in more than 130 countries and operates remotely 0with its stellar services.

Mercer majorly serves in three areas including Health, Wealth and Career having a client relationship with top companies like Fortune 1000 and FTSE 100. It generated revenue of US $ 4.3 billion.

12. Lockheed Martin Corp (IT Consulting)

Lockheed Martin Corp is the top management consulting firm in the field of aerospace and defense consulting. It is a global security consulting firm with partner clients like the U.S. Department of Defence and other government agencies. The company is based in America and has its headquarters in Bethesda, Maryland.

Lockheed Martin Corp has a large network of more than 97,000 employees working in 500 cities in 46 U.S. states and 75 foreign countries.

According to historical stats, more than 80 percent of the firm’s annual revenue has come from the U.S. government, with sales to international governments and a small amount of commercial activity making up the remainder.

13. GE Healthcare Partners

GE Healthcare Partners is a subsidiary of GE Healthcare of multinational fame. The company was founded in 1887 and its headquarters is based in London, United Kingdom. The company offers strategic solutions to healthcare management consultancy, analytics, technology, leadership, and governance. It is considered one of the best healthcare consulting firms in the world.

It has a small employee network with 150 specialists working remotely at 150 global locations.

14. Capgemini

Making it to the list of top 25 consulting companies, Capgemini is the only French company which is globally recognized for offering professional services and business consulting. Capgemini was founded in the year in 1967 by Serge Kampf. Its headquarters is located in Paris, France and is a Societas Europaea (European Society) company.

Capgemini provides IT services and is one of the world’s largest IT consulting, outsourcing and professional services companies with over 200,000 employees in over 40 countries. It has a revenue of 12.79 billion euros in the year 2017.

15. Oracle Consulting

Oracle Consulting is a member firm of the multinational Oracle Corporation, one of the biggest hardware and software providers in the world. The organisation provides professional services in the field of IT consulting. It was founded on 16th June 1977 by Larry Ellison, Bob Miner, and Ed Oates. Its headquarters is located in Redwood Shores, California.

The company has a big name in the silicon valley with an employee network of 137,000. Oracle was also the third largest software makers by revenue just after Microsoft and Alphabet. Oracle generated revenue of US $39.83 billion as of 2018.

16. Cisco Systems, Inc. (IT Consulting)

Cisco System is a multinational company based in America dealing with the manufacture and sale of networking hardware, telecommunication equipment, and other high technology products. Its headquarters is located in the heart of silicon valley in San Jose, California.

Cisco Systems was founded by Leonard Bosack and Sandy Lerner (two Stanford University computer scientists) in December 1984. It a public company with a revenue of US $ 49.33 billion in 2018.

Cisco systems has a network of 22,400 employees working at different locations worldwide. It is both a product based and service based company and is considered a pioneer in the tech world. It has a long list of awards and accolades under its name and was ranked 20th by the Fortune in “Best Companies to Work For” to name a few.

17. SAP Services (IT Consulting)

SAP Services is a Germany based multinational software company dealing with IT consulting. It stands for Systems, Applications and Products in data processing. It was founded in the year 1972 and has its headquarters located in Waldorf, Germany. The company has its offices in 180 countries with a network of 94,989 employees working day and night to cater to the needs of its 335,000 customers worldwide.

The company is a component of the Euro Stoxx 50 stock market index and generated a revenue of 23.46 Billion Euro.

18. Thornton

Grant Thornton is a globally renowned American company and the sixth largest U.S. accounting and advisory organization.

It was founded in the year 1924 and is a limited liability partnership. Its headquarters is located in Illinois, Chicago, U.S.A and has 58 offices spread across the US with 7,841 working employees. It offers professional services in Auditing, Tax and Advisory. The company generated revenue of US $1.74 billion as of 2017.

Grant Thornton was ranked No. 8 at “Best Places to Work 2016” in the Crain’s Chicago Business list. In 2014, Grant Thornton was named one of the “100 Best Companies for Working Mother”. Not only this, Grant Thornton was awarded the winning prize in Network of the Year by the International Accounting Bulletin in 2013.

Conclusion

The top consulting firms in the world offer some of the strongest career opportunities for students who want to work in strategy, management consulting, technology transformation, finance advisory, risk, and business operations. Firms like McKinsey, BCG, Bain, Deloitte, PwC, EY, KPMG, Accenture, Oliver Wyman, and Roland Berger are known for global exposure, fast learning, and strong career growth. For students planning an MBA, MiM, or business master’s abroad, understanding these firms can help in choosing the right business school, building a consulting-focused profile, and preparing for future recruitment. MiM-Essay helps applicants shortlist the best-fit business schools and create strong applications aligned with consulting career goals.