Tata Consultancy Services Limited (TCS) is an Indian multinational technology company specialising in information technology services and consulting. Headquartered in Mumbai, it is a part of the Tata Group and operates in 150 locations across 46 countries. As of 2024, Tata Sons owned 71.74% of TCS, and close to 80% of Tata Sons' dividend income came from TCS.

TCS ranked seventh on the Fortune India 500 list for 2024. In September 2021, TCS recorded a market capitalisation of US$200 billion, becoming the first Indian IT company to achieve this valuation. However, its market capitalisation declined to under US$100 billion in June 2026. In 2012, it was the world's second-largest user of U.S. H-1B visas.

History 1968–2000

Tata Consultancy Services Limited, originally known as Tata Computer Systems, was established in 1968 by Tata Sons Limited. The company's initial contracts involved providing punched card services to its sister company TISCO (now Tata Steel), developing an Inter-Branch Reconciliation System for the Central Bank of India, and offering bureau services to the Unit Trust of India.

In 1975, TCS implemented an electronic depository and trading system named SECOM for Swiss company SIS SegaInterSettle. It also developed System X for the Canadian Depository System and automated the Johannesburg Stock Exchange. TCS also partnered with the Swiss firm TKS Teknosoft, which it later acquired.

In 1980, TCS established India's first dedicated software research and development centre, the Tata Research Development and Design Centre (TRDDC), located in Pune. The following year, it created India's first client-dedicated offshore development centre, established for Tandem.

Anticipating the Y2K bug and the introduction of the unified European currency (Euro), Tata Consultancy Services developed a factory model for Y2K conversion. The company also created software tools to automate the conversion process and facilitate implementation by third-party developers and clients. In late 1999, TCS introduced Decision Support System (DSS) solutions to the domestic market. In 1999, the company also registered its first tagline, "Beyond the Obvious."

2001–2019 In 2001, TCS entered the bioinformatics segment, and three years later, launched India's first bioinformatics product.

In 2003, TCS became the first Indian IT company to record $1 billion in revenue. On 25 August 2004, TCS became a publicly listed company after its initial public offering.

In July 2005, Tata Infotech, which was until then a different IT subsidiary of Tata Sons, merged with TCS in a stock swap deal. Later that year, TCS changed its tagline from "Beyond the Obvious" to "Experience Certainty".

In 2006, TCS developed an ERP system for the Indian Railway Catering and Tourism Corporation. By 2008, its e-business operations were generating over US$500 million in annual revenue.

In 2011, TCS entered the small and medium enterprises market with cloud-based solutions. On the final trading day of 2011, it surpassed RIL to achieve the highest market capitalisation of any India-based company. In the 2011–12 fiscal year, TCS achieved annual revenues exceeding US$10 billion for the first time.

In May 2013, TCS was awarded a six-year contract valued at over to provide services to the Indian Department of Posts.TCS News & Events: Press Release: Department of Posts Awards Core System Integrator project to TCS . TCS.com. Retrieved 6 December 2013. In 2013, the company moved from 13th to 10th place on the list of global IT services companies by revenue. In July 2014, it became the first Indian company to exceed in market capitalisation.

In January 2015, TCS became India's most profitable company, ending Reliance Industries Limited's 23-year streak.

In January 2017, TCS announced a partnership with Aurus, a payments technology company, to deliver payment solutions for retailers through TCS OmniStore, a unified store commerce platform. The same year, TCS China entered into a joint venture with the Chinese government.

In March 2018, Tata Sons sold TCS shares worth $1.25 billion in a bulk transaction.

In 2019, TCS received four Stevies at the American Business Awards.

2020–present On 8 October 2020, TCS surpassed Accenture in market capitalisation, becoming the world's most valuable IT company with a market capitalisation of over $144 billion. On 25 January 2021, TCS briefly reclaimed the title of the world's most valuable IT company from Accenture with a market cap of $170 billion. On the same day, TCS also became India's most valuable company, surpassing Reliance Industries.

In May 2021, TCS, in collaboration with its consortium partner Neurotechnology, was selected by the Unique Identification Authority of India (UIDAI) to provide biometric technology for the Aadhaar digital ID programme. The Aadhaar programme, which has a database of over 1.3 billion citizens, has been described by World Bank Chief Economist Paul Romer as the "most sophisticated ID program in the world."

In 2021, TCS underwent a millennial rebranding, and the company updated its tagline from "Experience Certainty" to "Building on Belief". In 2021, Tata Consultancy Services was also one of the largest job providers in India, hiring 43,000 new employees in the first half of the fiscal year 2021–22.

In July 2025, TCS announced that it would downsize its global workforce by 2%, or about 12,000 employees, primarily from middle- and senior-level positions, citing a "skill mismatch". In October 2025, TCS set up a subsidiary called HyperVault for a 1 GW data centre in India, announcing a capex of up to $7 billion over 5 to 7 years. In November 2025, private equity firm TPG agreed to invest $1 billion in HyperVault for a 49% stake, with TCS continuing to hold the remaining 51%.

In June 2026, TCS partnered with Anthropic to train 50,000 TCS employees on Anthropic's Claude AI models and jointly develop enterprise AI solutions for regulated industries.

Acquisitions NameDateIndustryCountryCostEmployees CMC Limited October 2001 Embedded software India $33.9m 3,102 Airline Financial Support Services India (AFSI) January 2004 Airline and hospitality BPO India $5.1m 400 Aviation Software Development Consultancy India (ASDC) March 2004 IT services India $3.1m 180 Phoenix Global Solutions May 2004 Insurance consulting and BPO India $130m 400 Swedish Indian IT Resources AB (SITAR) May 2005 IT services Sweden $4.8m n/a Pearl Group October 2005 Insurance United Kingdom $94.7m 950 Financial Network Services (FNS) October 2005 Core banking software Australia $26m 190 Comicrom November 2005 Banking BPO Chile $23m 1,257 Tata Infotech February 2006 IT services India $259.2m 3,600 TCS Management November 2006 IT services Australia $13m 35 TKS-Teknosoft November 2006 Banking software Chile $80.4m 115 Citigroup Global Services December 2008 Banking and financial services BPO India $512m 12,472 SuperValu Services India September 2010 IT services and BPO India $100m 600 Computational Research Laboratories August 2012 High performance computing India $34m 80 Alti SA April 2013 IT services France $97.5m 1,200 BridgePoint Group November 2018 Management consulting United States Postbank Systems November 2020 IT services Germany Pramerica Systems Ireland December 2020 IT services Ireland 1,500Darshita Southern India Happy HomesMarch 2025Real estateIndia$260m

Corporate affairs Geographical presence

The company reported a global headcount of 584,519 employees across 56 countries, as of March 2026. In India, TCS has multiple delivery centres in major cities, including Mumbai, Bangalore, Chennai, and Hyderabad. The company maintains subsidiaries across the Americas, Europe, Asia Pacific, the Middle East and Africa.

Employees

Tata Consultancy Services (TCS) is one of the largest private-sector employers in India, and ranked as the fourth-largest employer overall in 2015, following Indian Railways, Indian Army, and India Post. In July 2022, the employee count of TCS crossed 600,000, with a net addition of about 100,000 in one year.

In 2008, TCS was the fifth-largest recipient of H-1B visas in the United States, following Infosys, Cognizant, Wipro, and Satyam. In 2012, TCS and other Tata Group companies were the second-largest recipients of H-1B visas. As of 31 March 2013, the number of non-Indian nationals employed by TCS was 21,282, representing 7.7% of the workforce.

Leadership TCS has had five CEOs since its inception in 1968. +CEOTenureF. C. Kohli1968–1996Subramaniam Ramadorai1996–2009Natarajan Chandrasekaran2009–2017Rajesh Gopinathan2017–2023K. Krithivasan2023–present

Business divisions Products and platforms In 2021, the software products and SaaS-based platforms business of TCS generated about $3 billion in revenue, accounting for 12–15% of the company's total revenue, according to COO N. Ganapathy Subramaniam. Its notable products included TCS BaNCS, TCS Cognix, TCS Quartz, TCS HOBS, TCS MasterCraft, and TCS OmniStore. Its business unit TCS iON includes a learning and assessment platform for competitive exams and recruitment tests.

In 2015, TCS started an enterprise software venture called Digitate, based in Pune and Santa Clara, which released its artificial intelligence platform Ignio the same year.

TCS BPS The TCS BPS division provides business process management services. It had an estimated revenue of $3.5 billion in financial year 2023–24, as per an Everest Group report.

TCS BPS also provides services for biopharmaceutical majors, including clinical research, data management, biostatistics, medical writing, clinical programming, pharmacovigilance, and RWE support towards global drug development efforts.

Tata Research Development and Design Centre

TCS established India's first software research centre, the Tata Research Development and Design Centre, in Pune, in 1981. TRDDC undertakes research in software engineering, process engineering, bioinformatics, and systems science. In 2005, researchers at TRDDC developed MasterCraft, a model-driven development software that can automatically create code from a computer language, and rewrite the code based on the users' needs.

TRDDC and Tata Chemicals jointly developed Sujal (later marketed as Tata Swach), a low-cost water purifier manufactured using rice husk ash and silver nanoparticles. TCS deployed thousands of these filters in the relief activities of the Indian Ocean tsunami disaster of 2004.

Innovation labs

In 2007, TCS launched its co-innovation network, a network of innovation labs, start-up alliances, university research departments, and venture capitalists. In addition, TCS has 19 innovation labs based in three countries. TCS' partners include CollabNet and Cassatt, and academic institutions such as IITs, Stanford, MIT, and Carnegie Mellon, and venture capitalists like Sequoia and Kleiner Perkins.

Sponsorships TCS is the title sponsor for Toronto Waterfront Marathon, London Marathon, Amsterdam Marathon, Mumbai Marathon, Lidingöloppet, and New York City MarathonPartners Lidingöloppet . Retrieved on 29 November 2022.TCS title sponsor for New York Road Runners . Business Standard (3 October 2013) Retrieved on 6 December 2013. and one of the sponsors of City2Surf, Australian Running Festival, Berlin Marathon, Chicago Marathon, and Boston Marathon. In India, it is the title sponsor of World 10K held in Bangalore every year.

TCS has been a sponsor of the Indian Premier League team Rajasthan Royals since 2009. It also provides the team with technology to help in the analysis of player performance, simulation, and use of RFID tags for tracking the players’ fitness levels and for security purposes in the stadiums.

TCS conducts an annual IT quiz for high school students called TCS IT Wiz. TCS also currently sponsors Jaguar Racing in Formula E and Nakajima Racing in Super Formula.

Controversies

US class action lawsuits