List of IT consulting firms

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. 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
CyientHyderabad, India15,000March 2018
DatamaticsMumbai, India10,000+December 2019
FujitsuTokyo, Japan140,3652018[1]
HCL TechnologiesNoida, India143,9002019
InfosysBengaluru, India200,364March 2017
KPIT TechnologiesPune, India12,000March 2018
Larsen & Toubro InfotechMumbai, India21,023March 2017
L&T Technology ServicesMumbai, India13,585March 2017
MphasisBengaluru, India21,994March 2017
MindtreeBengaluru, India21,267October 2019[2]
Neusoft GroupShenyang, China15,000
NIIT TechnologiesNoida, India10,263March 2019
NTT DataTokyo, Japan123,884December 2018
PacteraBeijing, China23,954
Persistent SystemsPune, India11,155March 2018
Quess CorpBengaluru, India292,872March 2018
Tata Consultancy ServicesMumbai, India400,875September 2018
Tech MahindraPune, India117,693March 2017
UST GlobalTrivandrum, India23,000December 2019
WiproBengaluru, India181,482March 2017
WNS Global ServicesMumbai, India42,602September 2019
Zensar TechnologiesPune, India11,000March 2018

Europe
NameHeadquartersTotal employeesAs of
AccentureDublin, Ireland492,000August 2019[3]
AltenBoulogne-Billancourt, France30,000November 2018[4]
AltranParis, France49,509September 2019[5]
AtosBezons, France107,543September 2019[6]
CapgeminiParis, France219,500September 2019[7]
DeloitteLondon, England286,200September 2018[8]
Grant Thornton InternationalLondon, England52,686January 2019[9]
IndraMadrid, Spain42,860February 2019[10]
KPMGAmstelveen, Netherlands207,050December 2018[11]
NTT Ltd.London, England40,000December 2018[12]
PricewaterhouseCoopersLondon, England250,930December 2018[13]
Ernst & Young London, England 270,000 December 2018[14]
Sopra SteriaParis, France42,000October 2018[15]
TietoEspoo, Finland14,329December 2017[16]
T-SystemsFrankfurt, Germany37,500March 2019[17]

North America
NameHeadquartersTotal employeesAs of
AvanadeSeattle, Washington, United States30,000August 2018[18]
Booz Allen HamiltonMcLean, Virginia, United States25,803February 2019[19]
Broadcom Inc. San Jose, California, United States 11,000 June 2019[20]
CGI GroupMontreal, Canada77,000April 2019 [21]
Cognizant Technology SolutionsTeaneck, New Jersey, United States274,200September 2018
ConduentFlorham Park, New Jersey, United States90,000June 2018[22]
DXC TechnologyTysons, Virginia, United States130,000March 2018[23]
EPAM SystemsNewtown, Pennsylvania, United States30,100December 2018[24]
GenpactNew York City, New York, United States90,00031 December 2018[25]
IBM Global ServicesArmonk, New York, United States100,000September 2019[26]
SofttekMonterrey, Mexico12,000November 2017[27]
SyntelTroy, Michigan, United States24,333October 2018 [28]
Science Applications International CorporationReston, Virginia, United States23,000February 2019[29]
UnisysBlue Bell, Pennsylvania, United States21,700December 2018[30]

South America
NameHeadquartersTotal company employeesAs of
Stefanini IT SolutionsJaguariúna, Brazil24,000January 2018[31]

Defunct but notable
gollark: Apparently probabilistic primality tests anger people. Sad.
gollark: Oh hypermemetic bee tesseracts.
gollark: Thusly, ECPP/APR/PSW one?
gollark: > While the algorithm is of immense theoretical importance, it is not used in practice, rendering it a galactic algorithm. For 64-bit inputs, the Baillie–PSW primality test is deterministic and runs many orders of magnitude faster. For larger inputs, the performance of the (also unconditionally correct) ECPP and APR tests is far superior to AKS. Additionally, ECPP can output a primality certificate that allows independent and rapid verification of the results, which is not possible with the AKS algorithm.
gollark: I mean, it's probably true, right?

References
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  2. "Mindtree profit down 35 per cent to Rs 135 crore on spends". The Economic Times. 2019-10-17. Retrieved 2019-12-31.
  3. "Q4 Fiscal 2019 (ended Aug. 31, 2019)".
  4. "Key figures" (PDF).
  5. "Q3 2019 revenue". Altran — Key Figures.
  6. "atos-presentation-q3-2019" (PDF).
  7. "2019 Q3 revenues".
  8. "Deloitte announces record revenue of US$43.2 billion". Deloitte. Retrieved 18 September 2018.
  9. "Strategic investment drives strong growth for Grant Thornton". Grant Thornton International Ltd. Home. 9 January 2018.
  10. "Indra Sistemas SA". Financial Times. Retrieved 15 Feb 2019.
  11. "KPMG 2018 Global Review" (PDF). Retrieved 15 February 2019.
  12. "Financial Results". Retrieved 15 February 2019.
  13. "Our people". pwc.com. Retrieved 10 May 2019.
  14. "EY Global Chairman and CEO Mark Weinberger to step down effective July 1, 2019". ey.com. 3 December 2018. Retrieved 15 February 2019.
  15. "Sopra Steria Acquires Sword Apak". 23 October 2018.
  16. "2017 annual report".
  17. "Company profile".
  18. "Avanade Acquires Loud&Clear And Creates Its First Digital Innovation Studio In Asia Pacific". Business Insider. 13 August 2018.
  19. "Booz Allen (BAH) Beats Q3 Earnings Estimates, Updates View". 5 February 2019. Retrieved 15 February 2019.
  20. "CA Technologies on the Forbes America's Best Employers By State List". Forbes. Retrieved 2019-07-13.
  21. "CGI Files 2018 Annual Disclosure Documents". CGI Group. 20 December 2013. Retrieved 2019-02-16.
  22. "What are the worst companies to work for? New report analyzes employee reviews". USA Today. 15 June 2018. Retrieved 2019-02-16.
  23. "Results for the Fourth Quarter and Year ended March 31, 2018" (PDF). DXC Technology. Retrieved 2019-01-09.
  24. "EPAM Systems Inc (EPAM) Q4 2018 Earnings Conference Call Transcript". Motley's fool. 2019-02-14. Retrieved 2019-02-16.
  25. "Genpact". IBM.
  26. "IBM Services". IBM.
  27. "Por qué estoy en los negocios | Blanca Treviño, CEO de Softtek". Forbes Mexico. 15 November 2018.
  28. "Atos completes acquisition of Syntel". Times of India. 10 October 2018.
  29. "SAIC Employees Receive BEYA Awards". AP News. 4 February 2019.
  30. "Unisys Corp. Annual Report" (PDF). Unisys. 3 December 2018.
  31. "Stefanini: metade dos nossos 24 mil funcionários trabalha no exterior". ISTOÉ DINHEIRO (in Portuguese). 2018-01-22. Retrieved 2019-07-13.
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