IBM vs TCS: Founders, CEOs and History
IBM was founded in 1911 by Charles Ranlett Flint and is led by Arvind Krishna. TCS was founded in 1968 by J.R.D. Tata, F.C. Kohli and is led by K Krithivasan.
Company facts
Founders
IBM
Charles Ranlett Flint
IBM possesses the most historic, foundational founding story in the entire history of modern computing, tracing its corporate lineage back to the genesis of data processing in the late 19th century and the aggressive, well-known leadership of a single, strong…
TCS
J.R.D. Tata
J.R.D. Tata was chairman of Tata Sons from 1938 to 1991. Under his leadership the group set up Tata Computer Centre in 1968, which became Tata Consultancy Services, initially to provide data-processing and management-consultancy services to Tata companies.
F.C. Kohli
Faqir Chand Kohli (1924-2020) moved from Tata Electric Companies to lead TCS in 1969 and served as its first general manager and later CEO until 1996.
CEOs and their tenures
IBM
- Louis V. Gerstner Jr.1993–2002
Chairman and CEO
Gerstner was the first IBM CEO hired from outside the company, coming from RJR Nabisco and American Express. He cut costs, cut mainframe prices, kept the company whole, and grew services into IBM's largest business.
Source - Samuel J. Palmisano2002–2011
Chairman, President and CEO
IBM focused on higher-margin services and software during his tenure. Ginni Rometty succeeded him in 2012.
Source - Virginia M. Rometty2012–2020
Chairman, President and CEO
IBM sold or exited lower-margin businesses under Rometty and bought Red Hat for about $34 billion. Arvind Krishna succeeded her in 2020.
Source - James J. Kavanaugh2018–present
Senior Vice President, Finance and Operations, and Chief Financial Officer
Kavanaugh is IBM's main voice on free cash flow targets, which reached $14.7 billion in FY2025.
Source - Arvind Krishna2020–present
Chairman and CEO
Krishna, a long-time IBM Research and software executive, led the Red Hat acquisition before becoming CEO.
Source
TCS
- F. C. Kohli1969–1996
Co-founder and First CEO
By the time Kohli stepped down from executive responsibility in 1996, TCS-trained programmers numbered in the hundreds of thousands and had helped launch India's broader IT-export industry, earning Kohli the title 'Father of the Indian IT Industry' and India's…
Source - N. Chandrasekaran2009–2017
CEO
He became chairman of Tata Sons in February 2017 and also chairs TCS's board and Air India.
Source - Rajesh Gopinathan2017–2023
CEO and Managing Director
Under Gopinathan, TCS shares nearly tripled, revenue almost doubled, and profit rose about 60% over his six-year tenure -- one of the strongest CEO track records in Indian corporate history.
Source - K. Krithivasan2023–present
CEO and Managing Director
Under Krithivasan, TCS crossed $30 billion in annual revenue in FY2026 and grew its annualized AI revenue run rate to $2.6 billion by Q1 FY2027, even as dollar revenue was roughly flat amid weak discretionary IT spending.
Source
Timeline: IBM and TCS side by side
1911IBM
Computing-Tabulating-Recording Company Founded
Charles Ranlett Flint merged the Tabulating Machine Company, International Time Recording Company, Computing Scale Company, and Bundy Manufacturing Company to form CTR - the company that would become IBM.
1924IBM
Renamed to International Business Machines
Under Thomas J. Watson Sr. CTR was renamed International Business Machines Corporation (IBM), reflecting the company's growing international presence and ambition beyond tabulating machines.
1952IBM
IBM 701 - First Commercial Computer
IBM launched the 701, its first commercially available electronic computer, marking the company's decisive entry into the electronic computing era and beginning its dominance of the mainframe market.
1964IBM
System/360 Launch
IBM launched the System/360, a compatible family of computers spanning all price points. The $5 billion investment was the largest privately funded project at the time and established the mainframe industry standard for decades.
1968TCS
TCS is founded
Tata Consultancy Services begins inside the Tata Group.
1969TCS
F.C. Kohli Joins as First CEO
F.C. Kohli is brought in on deputation to lead TCS, then a 10-consultant operation, and begins building an industrial, assembly-line approach to software delivery.
1981IBM
IBM Personal Computer Launch
IBM introduced the IBM PC, which standardized personal computing architecture and created the PC industry. The open architecture decision inadvertently created the Wintel duopoly that would ultimately commoditize IBM's own PC business.
1993IBM
Lou Gerstner Arrives - Turnaround Begins
Louis V. Gerstner Jr. Became CEO as IBM posted $8 billion in losses. His decision to keep IBM intact rather than break it up, and to pivot toward services, saved the company and redefined its business model for the next two decades.
1997IBM
Deep Blue Defeats Kasparov
IBM's Deep Blue supercomputer defeated world chess champion Garry Kasparov, becoming the first computer to beat a reigning world champion in a full match and establishing IBM's brand in artificial intelligence.
2001TCS
CMC Limited Stake Acquired
TCS acquires a majority stake in CMC Limited from the Government of India, adding systems-integration and public-sector technology capability.
2001TCS
TCS Crosses $1 Billion in Revenue
TCS becomes the first Indian IT services company to cross $1 billion in annual revenue, cementing its position as an industry leader.
2004TCS
TCS lists publicly
TCS completes its IPO and becomes one of India's most important listed technology companies.
2009TCS
TCS crosses major global scale thresholds
TCS expands globally across industries and delivery centers under new then-CEO N. Chandrasekaran.
2013TCS
N. Chandrasekaran Becomes CEO
Chandrasekaran becomes CEO, leading TCS through a period of rapid international expansion before his 2017 elevation to Tata Sons chairman.
2019IBM
Red Hat Acquisition Closes
IBM completed the $34 billion acquisition of Red Hat, the largest software acquisition in history at the time. The deal anchored IBM's hybrid cloud strategy and provided the OpenShift platform as the foundation for enterprise Kubernetes.
2020TCS
F.C. Kohli Passes Away
F.C. Kohli, TCS co-founder and first CEO, dies at age 96, having lived to see the company he helped build become one of the worlds largest IT services firms.
2021IBM
Kyndryl Spinoff
IBM spun off its managed infrastructure services business as Kyndryl Holdings, removing approximately $19 billion in low-margin revenue to focus the remaining company on higher-margin software and consulting.
2023IBM
Watsonx Platform Launch
IBM launched watsonx, its enterprise AI and data platform combining foundation models (Granite), data management (watsonx.data), and AI governance (watsonx.governance). The platform represents IBM's AI strategy for the generative AI era.
2023TCS
K. Krithivasan becomes CEO
K. Krithivasan becomes CEO and managing director of TCS, succeeding Rajesh Gopinathan.
2026IBM
Confluent Acquisition Closes
IBM completed its roughly $11 billion acquisition of Confluent, adding real-time data streaming used by more than 6,500 enterprises to its AI and hybrid cloud software.
2026TCS
FY2026 revenue is reported
TCS reports FY2026 revenue of $30.017B and net margin of 19.8%.
2026TCS
Q1 FY2027 AI run-rate grows
TCS reports Q1 FY2027 revenue of $7.624B and annualized AI revenue of $2.6B.
2026TCS
Tata Sons chairman succession opens
On August 12, 2026, N. Chandrasekaran said he would not seek another term as Tata Sons chairman after February 2027; TCS shares fell about 4% on the news.
Acquisitions
IBM
- Confluent2026$11B
- HashiCorp2025$6.4B
- Apptio2023$4.6B
- Red Hat2019$34B
- PricewaterhouseCoopers Consulting2002$3.5B
- Lotus Development Corporation1995$3.5B
TCS
- W12 Studios2018Undisclosed
- Citigroup Global Services2008$505M
- CMC Limited2001Undisclosed
Questions about IBM vs TCS
Who is the CEO of International Business Machines Corporation and Tata Consultancy Services Limited?
International Business Machines Corporation is led by Arvind Krishna and Tata Consultancy Services Limited is led by K Krithivasan. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.
When was International Business Machines Corporation founded vs Tata Consultancy Services Limited?
International Business Machines Corporation was founded in 1911 — 57 years before Tata Consultancy Services Limited, which was founded in 1968. International Business Machines Corporation's longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Tata Consultancy Services Limited.
How many employees does International Business Machines Corporation have compared to Tata Consultancy Services Limited?
International Business Machines Corporation employs approximately 264,300 people, while Tata Consultancy Services Limited employs approximately 593,798. Tata Consultancy Services Limited has the larger workforce at 593,798 employees, compared to International Business Machines Corporation's 264,300. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).
Where are International Business Machines Corporation and Tata Consultancy Services Limited headquartered?
International Business Machines Corporation is headquartered in United States and Tata Consultancy Services Limited is headquartered in India. Their different home markets mean they may face different regulatory frameworks, tax regimes, and currency exposure.
Who founded International Business Machines Corporation and Tata Consultancy Services Limited?
International Business Machines Corporation was founded by Charles Ranlett Flint. Tata Consultancy Services Limited was founded by J.R.D. Tata, F.C. Kohli.
Which company has a longer operating history — International Business Machines Corporation or Tata Consultancy Services Limited?
International Business Machines Corporation has been operating for approximately 115 years, making it the more established of the two companies. Tata Consultancy Services Limited has been in operation for around 58 years. A longer operating history often signals greater institutional resilience and brand recognition, though it can also mean slower adaptation to new market conditions.
Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the IBM vs TCS overview