Big Tech (India) Last updated July 20, 2025 Largest technology companies in India
Big Tech in India, also known as the Indian IT Giants , are the largest companies in the Indian information technology industry . The definition primarily includes Tata Consultancy Services , Infosys , HCLTech , and Wipro , along with one or both of Cognizant and Tech Mahindra . They are referred to in the media as "Big Six" or "Big Five", [ 1] [ 2] and with acronyms such as TWITCH [ 3] and WITCH. [ 4] [ 5]
The companies are among the dominant players in the global delivery model , providing IT consulting , outsourcing and offshore software development to Fortune Global 500 corporations and government entities. All six companies feature among the 20 largest employers in India . Five of them are part of the NIFTY 50 benchmark index of most valuable publicly listed companies, while the sixth, Cognizant, is part of the Nasdaq-100 .
Background In the 2000s, Gartner coined the acronym SWITCH, to refer to the six largest Indian IT companies Satyam , Wipro , Infosys , TCS , Cognizant and HCL . This acronym and the term "Big Six" subsequently found wide usage in forecast reports of other analysts and news media. [ 6] [ 1] [ 7] [ 8] [ 9] [ 10] Following Satyam's liquidation and business transfer to Tech Mahindra , the acronym shortened to WITCH, [ 6] [ 11] [ 12] while several outlets started using TWITCH by replacing Satyam with Tech Mahindra. [ 13] [ 14] [ 15]
Even after Cognizant shifted its headquarters from India to the United States, analysts have continued to refer to it as an Indian-heritage company, as a large majority of its workforce (about three-fourths) remains in India like its India-based peers. [ 16] [ 17] [ 18] [ 19] Some definitions in the Indian stock market context omit Cognizant from the grouping because it is not listed on the Indian exchanges. [ 2] [ 20]
Members The table below lists companies that have been frequently included in the definition, sorted by market capitalization . [ 21]
Rank Company name Market capitalization (July 2025) Revenue (for fiscal year 2024–25) 1 Tata Consultancy Services ₹ 1,154,115 crore (US$137 billion) ₹ 259,286 crore (US$31 billion) 2 Infosys ₹ 659,096 crore (US$78 billion) ₹ 166,590 crore (US$20 billion) 3 HCLTech ₹ 420,360 crore (US$50 billion) ₹ 119,540 crore (US$14 billion) 4 Cognizant US$38 billion US$20 billion 5 Wipro ₹ 279,785 crore (US$33 billion) ₹ 92,972 crore (US$11 billion) 6 Tech Mahindra ₹ 151,636 crore (US$18 billion) ₹ 53,847 crore (US$6.4 billion)
References 1 2 "Big 6 'Switch' to bigger deals, corner 2.4% of global work" . The Economic Times . 13 June 2008. Retrieved 13 July 2024 . 1 2 "Investors know better when to buy or sell stocks of Big Five IT firms" . Mint . Retrieved 13 July 2024 . ↑ Fersht, Phil; Fleming, Reetika; O'Brien, Melissa (1 July 2016). "Tech Mahindra Becomes the New T in TWITCH" . HFS Research . Retrieved 13 July 2024 . ↑ "The WITCH Report: 2020 Mid-Year Review" . Damo Consulting . Retrieved 13 July 2024 . ↑ Choudhary, Lokesh (2 January 2023). "WITCH vs FAANG Saga to Continue in 2023" . Analytics India Magazine . Retrieved 13 July 2024 . 1 2 P. V., Harikrishnan (8 January 2009). "Satyam saga: SWITCH to WITCH to ITCH" . OneIndia . Retrieved 13 July 2024 . ↑ Kripalani, Manjeet (19 February 2008). "India: Zero Hour for India's Tech Companies" . Der Spiegel . Retrieved 13 July 2024 . ↑ "To beat crisis 'switch' firms switch terrain" . The New Indian Express . 14 May 2012. Retrieved 13 July 2024 . ↑ " 'Indian IT growth outpaces global biggies' " . Business Standard . 27 September 2007. Retrieved 13 July 2024 . ↑ "Switching to Big League" . Business Today . 3 October 2007. Retrieved 13 July 2024 . ↑ Joshi, Yugal; Dhingra, Ritika (31 July 2013). "Will Satyam's Itch "TWITCH" the "WITCH"?" . Everest Group . Retrieved 14 July 2024 . ↑ Flinders, Karl (3 December 2013). "Where is Satyam now? Well, it's not Satyam for a start" . Computer Weekly . Retrieved 13 July 2024 . ↑ "IT Services Exports : From SWITCH to TWITCH" . DQ India . DataQuest. Retrieved 13 July 2024 . ↑ Philipose, Mobis (3 November 2017). "Indian IT's hiring freeze suggests weak demand will continue" . Mint . Retrieved 14 July 2024 . ↑ "Mahindra Satyam is now Tech Mahindra: Welcome to the TWITCH" . Forbes India . Retrieved 13 July 2024 . ↑ "Cognizant topples Infosys as No 2 IT firm in India" . The Economic Times . 6 August 2012. Retrieved 11 September 2024 . ↑ Phadnis, Shilpa (25 April 2024). "Infy narrows revenue gap with Cognizant" . The Times of India . Retrieved 11 September 2024 . ↑ Mishra, Bibhu Ranjan (7 August 2015). "Cognizant's strong shows raise bar for Indian IT services firms" . Business Standard . Retrieved 11 September 2024 . ↑ Bardia, Jas (10 May 2024). "TCS' Krithivasan earns the lowest among top Indian IT CEOs" . Mint . Retrieved 11 September 2024 . ↑ Choudhary, Lokesh (16 November 2022). "The Rise of Indian WITCH and the Fall of US FAANG" . Analytics India Magazine . Retrieved 14 July 2024 . ↑ "TOP COMPANIES IN INDIA BY MARKET CAPITALISATION - BSE" . Moneycontrol. Retrieved 13 July 2024 . This page is based on this
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