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List of IT consulting firms

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The following is a list of the largest notable information technology consulting firms in the world, along with their corporate headquarters location and the total number of consultants they have. Many of these serve primarily as third-party consultants and outsourcing partners. Many enterprise software companies employ their own consultants for services related to their own products. Among the corporations listed below, the number of consultants listed is less than their total number of employees. Note: Not all employees of these firms are consultants and firms with less than 10,000 employees are not included.

By continent

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Asia

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Name Headquarters Total employees As of
Tata Consultancy Services Mumbai, India 614,795 March 2023[1]
Infosys Bengaluru, India 343,234 March 2023[2]
Wipro Bengaluru, India 256,921 March 2023[3]
HCL Technologies Noida, India 225,944 March 2023[4]
birlasoft Pune, India 12,193 March 2023[5]
Tech Mahindra Pune, India 152,400 March 2023[6]
Hinduja Global Solutions Bengaluru, India 21,685 December 2022[7]
WNS Global Services Mumbai, India 59,755 March 2023[8]
eClerx Mumbai, India 16,804 December 2022[9]
ITC Infotech Bengaluru, India 12,000 June 2021[10]
NTT Data Tokyo, Japan 195,100 March 2023[11]
firstsource Mumbai, India 23,018 March 2023[12]
Fujitsu Tokyo, Japan 124,216 March 2022[13]
LTIMindtree Mumbai, India 84,546 March 2023[14]
Mphasis Bengaluru, India 34,042 March 2023[15]
Pactera Dalian, China 23,954
Neusoft Group Shenyang, China 20,000 December 2020[16]
L&T Technology Services Vadodara, India 22,233 March 2023[17]
Persistent Systems Pune, India 22,598 March 2023[18]
Cyient Hyderabad, India 15,864 March 2023[19]
KPIT Technologies Pune, India 11,013 March 2023[20]
Coforge Noida, India 23,224 March 2023[21]
Zensar Technologies Pune, India 10,563 March 2023[22]
Datamatics Mumbai, India 10,744 March 2022[23]
NCS Group Singapore 10,000

Europe

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Name Headquarters Total employees As of
Accenture Dublin, Ireland 738,143 February 2023[24]
Akkodis Bruxelles, Belgique 50,000 August 2024
Alten Boulogne-Billancourt, France 54,100 December 2022[25]
Asseco Rzeszow, Poland 32,400 January 2023[26]
Atos Bezons, France 110,270 March 2023[27]
Capgemini Paris, France 342,700 September 2023[28]
Deloitte London, England 415,000 May 2022[29]
Ernst & Young London, England 365,399 June 2022[30]
Globant Luxembourg City, Luxembourg 27,500 September 2023[31]
Grant Thornton International London, England 62,000 December 2022[32]
Indra Madrid, Spain 56,573 March 2023[33]
KPMG Amstelveen, Netherlands 273,424 September 2023[34]
Luxoft Zug, Switzerland 17,000 March 2023
Orange Business Services Paris, France 29,100 December 2022[35]
PricewaterhouseCoopers London, England 364,232 June 2023[36]
Sopra Steria Paris, France 53,724 March 2023[37]
TietoEVRY Espoo, Finland 24,071 March 2023[38]
T-Systems Frankfurt, Germany 28,000 December 2022[39]

North America

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Name Headquarters Total employees As of
Avanade Seattle, Washington, United States 50,000 December 2021[40]
Booz Allen Hamilton McLean, Virginia, United States 25,803 February 2019[41]
CGI Inc. Montreal, Canada 91,000 March 2023[42]
Cognizant Technology Solutions Teaneck, New Jersey, United States 351,500 March 2023[43]
Concentrix Newark, California, United States 440,000 December 2023[44]
Conduent Florham Park, New Jersey, United States 58,600 March 2023[45]
DXC Technology Tysons, Virginia, United States 134,035 December 2022[46]
EPAM Systems Newtown, Pennsylvania, United States 57,450 March 2023[47]
EXL Service New York City, New York, United States 45,400 December 2022[48]
Genpact New York City, New York, United States 119,000 March 2023[49]
Hewlett Packard Enterprise Spring, Texas, United States 60,200 March 2023[50]
Leidos San Diego, California, United States 45,000 December 2022[51]
Kyndryl New York, New York, United States 87,708 January 2023[52]
Softtek Monterrey, Mexico 12,000 November 2017[53]
Science Applications International Corporation Reston, Virginia, United States 23,000 February 2019[54]
Telus International Vancouver, Canada 58,000 December 2020[55]
Unisys Blue Bell, Pennsylvania, United States 17,200 December 2020[56]
UST Aliso Viejo, California, United States 30,000 October 2023
Virtusa Southborough, Massachusetts, United States 30,000 October 2020
Gartner Stamford, Connecticut, United States 19,830 March 2023[57]
Slalom Consulting Seattle, Washington, United States 13,000 April 2023[58]

South America

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Name Headquarters Total company employees As of
Algar Tech Uberlândia, Brazil 21,000 November 2022[59][circular reference]
Totvs São Paulo, Brazil 12,000 November 2022[60][circular reference]
Stefanini IT Solutions Jaguariúna, Brazil 30,000 April 2022[61]

Defunct entities

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References

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