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[1]
InfosysBengaluru, India343,234March 2023[2]
WiproBengaluru, India256,921March 2023[3]
HCL TechnologiesNoida, India225,944March 2023[4]
birlasoftPune, India12,193March 2023[5]
Tech MahindraPune, India152,400March 2023[6]
Hinduja Global SolutionsBengaluru, India21,685December 2022[7]
WNS Global ServicesMumbai, India59,755March 2023[8]
eClerxMumbai, India16,804December 2022[9]
ITC InfotechBengaluru, India12,000June 2021[10]
NTT DataTokyo, Japan195,100March 2023[11]
firstsourceMumbai, India23,018March 2023[12]
FujitsuTokyo, Japan124,216March 2022[13]
LTIMindtreeMumbai, India84,546March 2023[14]
MphasisBengaluru, India34,042March 2023[15]
PacteraBeijing, China23,954
Neusoft GroupShenyang, China20,000December 2020[16]
L&T Technology ServicesVadodara, India22,233March 2023[17]
Persistent SystemsPune, India22,598March 2023[18]
CyientHyderabad, India15,864March 2023[19]
KPIT TechnologiesPune, India11,013March 2023[20]
CoforgeNoida, India23,224March 2023[21]
Zensar TechnologiesPune, India10,563March 2023[22]
DatamaticsMumbai, India10,744March 2022[23]
NCS GroupSingapore10,000

Europe

NameHeadquartersTotal employeesAs of
AccentureDublin, Ireland738,143February 2023[24]
AltenBoulogne-Billancourt, France54,100December 2022[25]
AssecoRzeszow, Poland32,400January 2023[26]
AtosBezons, France110,270March 2023[27]
CapgeminiParis, France342,700September 2023[28]
DeloitteLondon, England415,000May 2022[29]
Ernst & YoungLondon, England365,399June 2022[30]
GlobantLuxembourg City, Luxembourg27,500September 2023[31]
Grant Thornton InternationalLondon, England62,000December 2022[32]
IndraMadrid, Spain56,573March 2023[33]
KPMGAmstelveen, Netherlands273,424September 2023[34]
LuxoftZug, Switzerland17,000March 2023
Orange Business ServicesParis, France29,100December 2022[35]
PricewaterhouseCoopersLondon, England364,232June 2023[36]
Sopra SteriaParis, France53,724March 2023[37]
TietoEVRYEspoo, Finland24,071March 2023[38]
T-SystemsFrankfurt, Germany28,000December 2022[39]

North America

NameHeadquartersTotal employeesAs of
AvanadeSeattle, Washington, United States50,000December 2021[40]
Booz Allen HamiltonMcLean, Virginia, United States25,803February 2019[41]
CGI Inc.Montreal, Canada91,000March 2023[42]
Cognizant Technology SolutionsTeaneck, New Jersey, United States351,500March 2023[43]
ConduentFlorham Park, New Jersey, United States58,600March 2023[44]
DXC TechnologyTysons, Virginia, United States134,035December 2022[45]
EPAM SystemsNewtown, Pennsylvania, United States57,450March 2023[46]
EXL ServiceNew York City, New York, United States45,400December 2022[47]
GenpactNew York City, New York, United States119,000March 2023[48]
Hewlett Packard EnterpriseSpring, Texas, United States60,200March 2023[49]
LeidosSan Diego, California, United States45,000December 2022[50]
KyndrylNew York, New York, United States87,708January 2023[51]
SofttekMonterrey, Mexico12,000November 2017[52]
Science Applications International CorporationReston, Virginia, United States23,000February 2019[53]
Telus InternationalVancouver, Canada58,000December 2020[54]
UnisysBlue Bell, Pennsylvania, United States17,200December 2020[55]
USTAliso Viejo, California, United States30,000October 2023
VirtusaSouthborough, Massachusetts, United States30,000October 2020
GartnerStamford, Connecticut, United States19,830March 2023[56]
Slalom ConsultingSeattle, Washington, United States13,000April 2023[57]

South America

NameHeadquartersTotal company employeesAs of
Algar TechUberlândia, Brazil21,000November 2022[58]
TotvsSão Paulo, Brazil12,000November 2022[59]
Stefanini IT SolutionsJaguariúna, Brazil30,000April 2022[60]

Defunct entities

References

  1. ↑ "Q4 FY 2022-23 Fact sheet" (PDF). Retrieved 12 April 2023.
  2. ↑ "Fact-sheet" (PDF). Retrieved 13 April 2023.
  3. ↑ "analyst-data-sheet-q4-fy23" (PDF). Retrieved 27 April 2023.
  4. ↑ "Investors".
  5. ↑ "Presentation" (PDF). Retrieved 8 May 2023.
  6. ↑ "Tech Mahindra Financial highlights for the quarter Q4'23" (PDF). Retrieved 11 May 2023.
  7. ↑ "Press Release - HGS announces Q3 FY2023 results" (PDF). Retrieved 13 February 2023.
  8. ↑ "Fiscal Q4 2023 Earnings Release". Retrieved 27 April 2023.
  9. ↑ "Quarterly Investor Presentation" (PDF). Retrieved 2 February 2023.
  10. ↑ "HCL, ITC Infotech and Datamatics are among the top world's top 100 outsourcing companies of 2020". Business Insider. Retrieved 8 April 2023.
  11. ↑ "Financial Results for the Fiscal Year Ended March 31, 2023" (PDF). Retrieved 11 May 2023.
  12. ↑ "Investor Presentation" (PDF). Retrieved 4 May 2023.
  13. ↑ "Social Data". Fujitsu Global. Retrieved 28 April 2022.
  14. ↑ "Earnings release and Factsheet" (PDF). Retrieved 27 April 2023.
  15. ↑ "Group Overview" (PDF). Retrieved 27 April 2022.
  16. ↑ "About Neusoft".
  17. ↑ "Investor Release" (PDF). Retrieved 26 April 2023.
  18. ↑ "Analyst Presentation and Fact Sheet – Q3 FY23" (PDF).
  19. ↑ "Investor Annexures Q4 FY23 & FY23" (PDF).
  20. ↑ "Investor Update". Retrieved 26 April 2023.
  21. ↑ "Investor Presentation" (PDF).
  22. ↑ "Zensar Analyst Presentation" (PDF).
  23. ↑ "Annual Report 2021-22" (PDF).
  24. ↑ "Second Quarter 2023 Supporting Materials" (PDF). Retrieved 23 March 2023.
  25. ↑ "2022 ALTEN Annual Results" (PDF). Retrieved 24 February 2023.
  26. ↑ "Profile - Asseco Poland - Technology for business, Solutions for people". Retrieved 8 April 2023.
  27. ↑ "Q1 2023 revenue" (PDF). 27 April 2023.
  28. ↑ "Q3 2023 revenues". 7 Nov 2023.
  29. ↑ "Deloitte reports record FY2022 revenue". www.deloitte.com. Retrieved 8 Sep 2022.
  30. ↑ "Press release". www.ey.com. Retrieved 21 September 2022.
  31. ↑ "Global Investor Relations Overview". Globant. September 2023.
  32. ↑ "Strategic investment drives strong growth for Grant Thornton". Grant Thornton International Ltd. Home. April 2023.
  33. ↑ "Indra Sistemas SA" (PDF). Retrieved 15 May 2023.
  34. ↑ "KPMG global FY2023". 13 December 2023.
  35. ↑ "Corporate".
  36. ↑ "Global Annual Review 2023". PwC.
  37. ↑ "Q1 2023 Revenues" (PDF) (Press release). 28 April 2023.
  38. ↑ "Presentation" (PDF).
  39. ↑ "Company Presentation" (PDF). www.t-systems.com. Retrieved 12 May 2023.
  40. ↑ "Facts".
  41. ↑ "Booz Allen (BAH) Beats Q3 Earnings Estimates, Updates View". 5 February 2019. Retrieved 15 February 2019.
  42. ↑ "cgi-q2-2023-presentation" (PDF). Retrieved 26 April 2023.
  43. ↑ "Infographic" (PDF). Retrieved 3 May 2023.
  44. ↑ "Q1 2023 Investor Metrics File". 3 May 2023.
  45. ↑ "Third Quarter FY 2023 Earnings Presentation" (PDF).
  46. ↑ "Press Release". EPAM. May 2023.
  47. ↑ "Form 10-K".
  48. ↑ "Q1 2023 Factsheet".
  49. ↑ "2022 Annual Report on Form 10-K" (PDF).
  50. ↑ "Q3-Press-Release" (PDF).
  51. ↑ "2023 Proxy Statement".
  52. ↑ "Por qué estoy en los negocios | Blanca Treviño, CEO de Softtek". Forbes Mexico. 15 November 2018.
  53. ↑ "SAIC Employees Receive BEYA Awards". AP News. 4 February 2019.
  54. ↑ "Investor Relations - Home | TELUS International". www.telusinternational.com. Retrieved 8 April 2023.
  55. ↑ "2020 Annual Report" (PDF). October 2021.
  56. ↑ "Form 10-Q". U.S. Securities and Exchange Commission. 2 May 2023.
  57. ↑ "Who we are". September 2023.
  58. ↑ "Wikipedia: Grupo Algar". 2022-11-08.
  59. ↑ "Wikipedia: Totvs". 2022-11-08.
  60. ↑ "Stefanini: Sobre". Stefanini (in Brazilian Portuguese). 2022-04-16. Retrieved 2022-04-16.
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