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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

Asia

NameHeadquartersTotal employeesAs of
Tata Consultancy ServicesMumbai, India614,795March 2023
InfosysBengaluru, India343,234March 2023
WiproBengaluru, India256,921March 2023
HCL TechnologiesNoida, India225,944March 2023
birlasoftPune, India12,193March 2023
Tech MahindraPune, India152,400March 2023
Hinduja Global SolutionsBengaluru, India21,685December 2022
WNS Global ServicesMumbai, India59,755March 2023
ITC InfotechBengaluru, India12,000June 2021
NTT DataTokyo, Japan195,100March 2023
firstsourceMumbai, India23,018March 2023
FujitsuTokyo, Japan124,216March 2022
LTIMindtreeMumbai, India84,546March 2023
MphasisBengaluru, India34,042March 2023
PacteraDalian, China23,954
Neusoft GroupShenyang, China20,000December 2020
L&T Technology ServicesVadodara, India22,233March 2023
Persistent SystemsPune, India22,598March 2023
CyientHyderabad, India15,864March 2023
KPIT TechnologiesPune, India11,013March 2023
CoforgeNoida, India23,224March 2023
Zensar TechnologiesPune, India10,563March 2023
NCS GroupSingapore10,000
iSoftStoneBeijing, China85,470December 2023

Europe

NameHeadquartersTotal employeesAs of
AccentureDublin, Ireland738,143url=https://investor.accenture.com/~/media/Files/A/Accenture-IR-V3/quarterly-earnings/2023/q2fy23/second-quarter-2023-supporting-materials.pdftitle=Second Quarter 2023 Supporting Materialsaccessdate=23 March 2023}}
AkkodisBruxelles, Belgique50,000August 2024
AltenBoulogne-Billancourt, France54,100December 2022
AssecoRzeszow, Poland32,400January 2023
AtosBezons, France110,270March 2023
CapgeminiParis, France342,700September 2023
DeloitteLondon, England415,000May 2022
Ernst & YoungLondon, England365,399June 2022
GlobantLuxembourg City, Luxembourg27,500September 2023
Grant Thornton InternationalLondon, England62,000December 2022
IndraMadrid, Spain56,573March 2023
KPMGAmstelveen, Netherlands273,424September 2023
LuxoftZug, Switzerland17,000March 2023
Orange Business ServicesParis, France29,100December 2022
PricewaterhouseCoopersLondon, England364,232June 2023
Sopra SteriaParis, France53,724March 2023
TietoEVRYEspoo, Finland24,071March 2023
T-SystemsFrankfurt, Germany28,000December 2022

North America

NameHeadquartersTotal employeesAs of
AvanadeSeattle, Washington, United States50,000title=Fast Factsurl=https://www.avanade.com/about-avanade/fast-factsurl-status=livearchive-url=https://web.archive.org/web/20230512180638/https://www.avanade.com/about-avanade/fast-factsarchive-date=May 12, 2023website=Avanade US}}
Booz Allen HamiltonMcLean, Virginia, United States25,803February 2019
CGI Inc.Montreal, Canada91,000url=https://www.cgi.com/sites/default/files/2023-04/cgi-q2-2023-presentation-2460061-en.pdftitle=Second Quarter Fiscal 2023date=April 26, 2023publisher=CGIaccessdate=26 April 2023url-status=livearchive-url=https://web.archive.org/web/20230426124319/https://www.cgi.com/sites/default/files/2023-04/cgi-q2-2023-presentation-2460061-en.pdfarchive-date=26 April 2023 }}
Cognizant Technology SolutionsTeaneck, New Jersey, United States351,500March 2023
ConcentrixNewark, California, United States440,000December 2023
ConduentFlorham Park, New Jersey, United States58,600March 2023
DXC TechnologyTysons, Virginia, United States134,035December 2022
EPAM SystemsNewtown, Pennsylvania, United States57,450March 2023
EXL ServiceNew York City, New York, United States45,400December 2022
GenpactNew York City, New York, United States119,000March 2023
Hewlett Packard EnterpriseSpring, Texas, United States60,200March 2023
IBM ConsultingNew York City, United States160,000November 2025.
LeidosSan Diego, California, United States45,000December 2022
KyndrylNew York, New York, United States87,708January 2023
SofttekMonterrey, Mexico12,000November 2017
Science Applications International CorporationReston, Virginia, United States23,000February 2019
Telus InternationalVancouver, Canada58,000url=https://www.telusinternational.com/investorstitle=Investor Relations - Homewebsite=TELUS Internationalaccessdate=8 April 2023}}
UnisysBlue Bell, Pennsylvania, United States17,200December 2020
USTAliso Viejo, California, United States30,000October 2023
VirtusaSouthborough, Massachusetts, United States30,000October 2020
GartnerStamford, Connecticut, United States19,830March 2023
Slalom ConsultingSeattle, Washington, United States13,000April 2023

South America

NameHeadquartersTotal company employeesAs of
Algar TechUberlândia, Brazil21,000November 2022
TotvsSão Paulo, Brazil12,000November 2022
Stefanini IT SolutionsJaguariúna, Brazil30,000April 2022

References

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