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The 10 Largest IT Consulting Companies in the World

largest IT consulting companies

The 10 Largest IT Consulting Companies in the World

Do you want to learn more about the largest IT consulting companies in the world? These consulting companies continuously innovate to stay at the top of the competitive tech industry.

Key Points:

  • Accenture is the largest IT consulting company in the world with over 730,000 employees across 50 countries.
  • Not every employee at an IT consulting company will be classified as a consultant, so the number of total consultants will be less than the number of employees listed.
  • Several large IT companies, like Campgemini and PricewaterhouseCoopers, have grown in size by acquiring smaller IT firms.

IT consulting, also known as IT management consulting, helps businesses solve operations and business problems through information technology. Developing a strong tech infrastructure and keeping it consistent with industry standards and consumer preferences takes a lot of work. So, this is where IT consulting companies come in.

The IT space is very broad and encompasses technology strategy, operations, and even architecture consulting. Most large IT consulting companies cater to several industries while having specific divisions dedicated to each industry, like healthcare, manufacturing, and more. Compare this to smaller firms that typically specialize in a specific sector and dedicate all their resources to helping companies in that market succeed.

Some IT consulting firms even work in-house and offer day-to-day maintenance of the company’s technology systems. However, most of the companies on this list operate as third-party consultants, offering high-level strategy and recommendations to improve technology utilization.

Below you’ll find a list of the largest IT consulting companies in the world. The companies featured below have primary offices in the US, Europe, and India, along with satellite offices across the globe.

Largest IT Consulting Companies in the World

#10: Wipro – 247,073 Employees

largest IT consulting companies
WIPRO Ltd is an Indian multinational corporation that provides IT, consulting, and business process services.

Wipro is a long-running IT consulting company that’s been in business for over 7 decades. It’s based in Bangalore, India, and has 247, 073 employees. Plus, the company is constantly ranked at the top of the NASDAQ and Greenpeace rankings of sustainably-oriented companies.

Wipro offers IT solutions that are geared toward the cloud computing and enterprise automation spaces. It uses data and analytics to help companies make better decisions regarding their technology implementation. Not only that, its solutions adhere to all regulatory requirements, while being resilient to cyber threats.

#9: IBM Global Services – 282,000 Employees

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IBM is an American multinational technology and consulting corporation with 12 research laboratories worldwide.

IBM is one of the largest IT companies in the world. It’s been in business for over 100 years and continues to be one of the most innovative and successful companies in the world. Currently, the company has just over 282,000 employees across 170 countries. Its headquarters are in New York, but it has offices spread across the globe.

The company offers traditional IT consulting services, along with large-scale systems integration. These are split between two main areas of practice for IBM, a business consulting division, and a systems integration and application division. Between these divisions IBM is present in nearly every part of the technology sector, from traditional mainframe computing to cutting-edge nanotechnology. 

#8: PricewaterhouseCoopers – 327,000 Employees

largest IT consulting companies
PWC is a London-based firm with a world-wide presence.

PricewaterhouseCoopers (PwC) is a London-based consulting firm with over 327,000 employees. The company provides a range of different IT consulting services to help solve complex business issues for its clients. Although the company is based out of London it has firms set up in over 157 countries. 

The main services PricewaterhouseCoopers provide are risk management, strategy, and technology consulting to the tech, business, and engineering industries. Plus, the company has specific divisions that focus on the cloud, cybersecurity, privacy, emerging technologies, data and analytics, and business applications. Not only that, but the company has received several awards and accolades over the years that support the quality of its services.

Like other large IT consulting firms, PwC uses acquisition to grow its company and expand into new markets. Over the years, the company has acquired a variety of IT consulting companies including Diamond Management and Technology Consultants, Booz & Co, PRTM, and many others. 

#7: Infosys – 346,000 Employees

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Infosys Limited is an Indian multinational information technology company.

Infosys Limited is another consulting company based out of Bangalore, India. The company was founded in the early 1980s by a team of 7 engineers and has since grown to become India’s second-largest IT consulting firm. It currently has over 346,000 employees across 50 different countries. Plus, this growth is showing no signs of slowing down, and is recognized as one of the fastest-growing IT brands.

The primary focus of the company is developing custom applications for enterprises, governments, and small businesses around the world. Although it serves a variety of different types of businesses the main focus is banks and other large-scale enterprise clients. Most of its services are driven by its unique AI platform and analytics software.

#6: Cognizant – 355,300 Employees

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Cognizant Technology Solutions is an American corporation that provides IT services.

Cognizant Technology Solutions, is an IT consulting company based out of Teaneck, New Jersey. Founded in 1994, as Dun and Bradstreet Software, it quickly began taking on clients outside of the initial company and has since grown into a Fortune 500 company. Currently, it has just over 355,300 employees spread across 50 different countries. 

It offers IT consulting solutions, along with business outsourcing and general consulting. Cognizant specializes in large-scale IT transformation across the healthcare, financial services, manufacturing, and retail spaces. Also, it has departments that focus specifically of the Internet of Things, artificial intelligence, intelligent process automation, and much more.

#5: Capgemini – 358,400 Employees

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Capgemini SE is a multinational information technology services and consulting company.

Capgemini was founded in France in 1967, since then it’s grown to 358,400 employees across 55 different countries. They’re considered a leader in the technology, consulting, and outsourcing spaces. Not only that, but the company has a special focus on cybersecurity, AI, and cloud infrastructure. 

The IT consulting sector of Capgemini is a relatively new addition to the company. It was started in 2018 as a combination of its existing consulting group, along with data science and technology experts who were employed by the company. Since then, the IT consulting sector has grown to become one of the biggest parts of the company.

Capgemini has grown a lot in recent years through its acquisitions. The company has recently bought LiquidHub-US, Farenheight 212, iGate, and several others. All of these acquisitions have helped to solidify their place as one of the largest IT consulting firms. 

#4: Ernst and Young – 365,399 Employees

largest IT consulting companies
Ernst & Young provides consulting services across a wide range of sectors.

Ernst and Young (EY) was founded in 1989 in London. The company is over 365,399 employees strong. Currently, Ernst and Young serve over 200,000 clients with 700 offices spread out across 150 countries. Additionally, the US branch of the company is located in Times Square and is one of the largest privately owned companies in the United States. 

They provide IT consulting services across a range of different verticals including legal, financial, tax advising, and digital strategy. In addition, some of the main services they offer include sustainability and compliance consulting, cloud service integration, and cybersecurity transformation. Not only that but these services are backed by hundreds of successful case studies of companies achieving success through their recommendations.

#3: Deloitte – 415,000 Employees

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Deloitte provides industry insights and audit, consulting, financial advisory, risk management, and tax services.

Deloitte is a long-running consulting firm that was founded in London in 1845. Its New York office was established in 1890. It currently has over 415,000 employees across 150 different countries. 

As a result of its track record and longevity, the company works with some of the top brands in the world, including advising 90 percent of the top Fortune 500 Global companies. In addition, it served over 5,000 mid-market and private companies.

The main IT and technology services the company provides are strategy, analytics, cloud computing, and enterprise technology. Beyond these specific services, the company also provides business strategy, risk assessment, regulatory and tax, and enterprise technology consulting. Overall, Deloitte is highly respected for its forecasts across the technology and business sectors

#2: Tata Group – 702,454 Employees

largest IT consulting companies
Tata Group is one of the largest companies in India.

Tata Group is based in Mumbai, India, and now has over 702,454 employees. The company was founded in 1968 and was originally named Tata Computer Systems. Since then, it’s grown to over 150 locations across 46 countries. In addition, it’s been ranked on Forbes World’s Most Innovative Companies List and is one of the largest companies in India.

Further, it offers information technology, business, and digital consulting services to its wide range of clients. The company is primarily known for its work across application development, along with its work in enterprise outsourcing. Finally, Tata Group also serves clients across the health care, transportation, hospitality, finance, utilities, insurance, manufacturing, and retail spaces.

#1: Accenture – 738,000 Employees

largest IT consulting companies
Accenture, the largest IT consulting company, has offices in 50 countries.

Accenture is currently the largest IT consulting company in the world. The company was founded in 1989 and has over 738,000 employees across 50 countries. The firm truly has a global reach and serves clients across 120 different countries and 200 different cities. As well as, working with 91 of the Forbes Global 100 companies.  

As such a large company they offer a range of services that span business strategy, marketing, infrastructure, and outsourcing. In addition, they also place a large focus on the developing artificial intelligence sector. Not only that, they’re constantly at the leading edge of the technology sector and have over 6,700 filed patents. Also, Accenture stands out with its commitment to helping clients reach environmental and social goals laid out in the United Nation’s Sustainable Development Goals.

Summary of the 10 Largest Information Technology Companies

CompanyEmployees
1. Accenture738,000 Employees
2. Tata Group702,454 Employees
3. Deloitte415,000 Employees
4. Ernst and Young365,399 Employees
5. Capgemini358,400 Employees
6. Cognizant355,300 Employees
7. Infosys346,000 Employees
8. PricewaterhouseCoopers327,000 Employees
9. IBM Global Services282,000 Employees
10. Wipro247,073 Employees

By now you should have a better understanding of the largest IT companies in the world and the types of services they offer their clients to help them succeed. If you’re thinking of trying to break into the IT consulting industry, then hopefully some of these companies are now on your radar. Finally, with employee numbers in the hundreds of thousands, there’s no reason your next career jump can’t be into IT consulting with an industry leader.

Frequently Asked Questions

How big is the IT consulting industry?

As you can see from the total number of employees above, the total number of employees is well into the millions. However, the size of most industries is measured by total market revenue. In this case, the IT consulting industry is at $665.9 billion.

Which IT consulting company is the most profitable?

Currently, the most profitable IT consulting company in the world is Accenture, with a market cap of $165.68 billion.

Is the IT consulting industry growing?

Yes, the IT consulting industry continues to grow. It’s currently expected to increase at a 4% growth rate in 2023.

What are the biggest IT consulting companies in the world?

Based on the total number of employees, the five biggest IT consulting companies include Accenture, Tata Group, Deloitte, Ernst and Young, and Capgemini.

What do IT consulting companies do?

In general, IT consulting companies offer strategic advice to help companies align their technology use and strategy with their business goals.

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