computer science

HCLTech

HCLTech is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand HCLTech rather than just read about it. In short: HCL Technologies Limited (d/b/a HCLTech) is an Indian multinational information technology (IT) and consultant company headquartered in Noida, Uttar Pradesh. Founded by Shiv Nadar, it was spun out in 1991 when HCL entered into the software services business.

Key takeaways

HCLTech belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect HCLTech to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HCLTech from memory before moving on to harder problems.

Reference excerpt

HCL Technologies Limited (d/b/a HCLTech) is an Indian multinational information technology (IT) and consultant company headquartered in Noida, Uttar Pradesh. Founded by Shiv Nadar, it was spun out in 1991 when HCL entered into the software services business. The company has offices in 60 countries and over 223,000 employees. It is the third-largest India-headquartered IT services company by revenue and market capitalization as of 2024.

History

Formation and early years In 1976, a group of eight engineers, all former employees of Delhi Cloth & General Mills, led by Shiv Nadar, started a company that would make personal computers. Initially floated as Microcomp Limited, Nadar and his team (which also included Arjun Malhotra, Ajai Chowdhry, D.S. Puri, Yogesh Vaidya and Subhash Arora) started selling teledigital calculators to gather capital for their main product. On 11 August 1976, the company was renamed Hindustan Computers Limited (HCL). HCL Enterprise developed an indigenous microcomputer in 1978, and an RDBMS, networking OS and client-server architecture in 1983. HCL Technologies began as the R&D division of HCL Enterprise. The company originally was focused on hardware but, via HCL Technologies, software and services became the main focus. On 12 November 1991, HCL Technologies was spun off as a separate unit, being incorporated as HCL Overseas Limited, a provider of software and technology development services. In 1993, HCL also started providing enterprise IT infrastructure management services, winning an order to establish India's first floorless, electronic stock exchange for NSE. In July 1994, the company name was changed to HCL Consulting Limited. On 6 October 1999, the company was renamed 'HCL Technologies Limited' for "a better reflection of its activities." Between 1991 and 1999, the company expanded its software development capacities to US, European and APAC markets.

IPO and subsequent expansion

HCL went public on 11 January 2000, with an issue of 14.2 million shares. By the early-2000s, its wholly owned subsidiary HCL Comnet had expanded its offerings from VSAT to include network security and IT infrastructure services. In 2001, HCL formed a joint venture with Deutsche Bank by acquiring a 51% stake in the latter's Indian subsidiary Deutsche Software (later renamed DSL Software). In 2004, HCL bought out the remaining 49% stake in DSL Software, which then became part of HCL's banking technology division. In 2003, HCL won a contract to develop embedded software for Airbus A340's flight warning system. That same year, HCL sold its entire stake in HCL Perot Systems, a seven-year old IT services company, to joint venture partner Perot Systems for over $105 million. In 2005, HCL expanded its operations in Northern Ireland. At the 2006 UK Trade and Investment India Business Awards in New Delhi, the then UK Prime Minister Tony Blair announced the expansion. In 2008, HCL acquired the UK-based consultancy Axon Group for £440 million and merged HCL's enterprise application services (EAS) division into Axon. In the three years following the acquisition, the EAS division's revenue share within HCL increased from 9% to 22%. In October 2017, IBM and HCL announced a strategic partnership, with the latter taking over the development of IBM Lotus Software's Notes, Domino, Sametime and Verse collaboration tools. In 2018, US-based Actian was acquired by HCL and Sumeru Equity Partners for $330 million. HCL America acquired the remaining 19.6% stake in Actian for $100.2 million in 2021, making Actian the data & analytics division of HCLSoftware, but keeping it an independent company. In 2019, HCL Technologies acquired products of IBM including AppScan, BigFix, Commerce, Connections, Digital Experience (Portal and Content Manager), Notes/Domino, and Unica. In 2021, the company reached $10 billion in revenue. In 2022, HCL Technologies rebranded as HCLTech. In 2023, HCLTech acquired ASAP Group, a German automotive engineering company for $279 million. In August 2023, HCLTech signed a $2.1 billion managed network services deal with Verizon Business. In May 2024, HCLTech announced the acquisition of select assets of Communications Technology Group, a business division of Hewlett Packard Enterprise (HPE), for $225 million.

Acquisitions

Operations

HCLTech operates in 60 countries and has more than 200 delivery centers and 150 innovation labs. Its headquarters are in Noida, India. The company serves include Digital, Engineering, Cloud, AI and Software. HCLTech business is divided into three segments: IT and Business Services (ITBS), Engineering and R&D Services (ERS), and HCLSoftware.

HCLSoftware In 2019, HCL Technologies started a software product division called HCLSoftware, after completing the acquisition of IBM's software tools. Notable products under HCLSoftware include HCL AppScan, HCL BigFix, HCL Connections, HCL Commerce Cloud, HCL Digital Experience, HCL Sametime, HCL Notes, iNotes, and Unica. As for Actian, their data & analytics division, notable products include HCL Informix, Actian Data Platform, Actian Ingres, Actian Zen, Actian NoSQL and Zeenea. HCLSoftware division had revenue of ₹11,692 crore (US$1.2 billion) in fiscal year 2023–24.

Employees As of June 30, 2026, HCLTech had over 223,000 employees worldwide, representing 161 nationalities. HCLTech has had four CEOs since its inception:

HCL Group HCLTech is the flagship company of the HCL Group. Another HCL Group company, HCL Infosystems, was formed in 1976 to produce calculators. HCL Infosystems later became one of the leading manufacturers of personal computers and laptops in India, but it eventually lost market share to foreign competitors like HP and Dell, and shut down its manufacturing division. In February 2014, HCL Group launched HCL Healthcare, which provides corporate health services. HCL TalentCare is the fourth venture of HCL Group, which provided skilling and staffing services.

HCLFoundation HCLFoundation is the CSR arm of HCL Technologies in India. As of March 2024, it has invested around ₹1,400 crores (US$170 million) in social and environmental programs. Its initiatives include the HCLTech Grant.

Illustrations

Worked examples

Example 1 — a first encounter with HCLTech

Start with the simplest possible case. Write down what HCLTech claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to HCLTech before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about HCLTech ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of HCLTech

In research: HCLTech appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses HCLTech in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: HCLTech is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1991 establishments in Uttar Pradesh, 1999 initial public offerings, BSE SENSEX, so understanding it makes those chapters shorter.
In everyday life: Look for HCLTech outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study HCLTech in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HCLTech means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain HCLTech out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HCLTech in simple terms?

Why does HCLTech matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study HCLTech?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on HCLTech.