Kolkata is rapidly growing as a major IT hub, driven by new tech parks and modern infrastructure in Salt Lake Sector V and New Town. IT companies in Kolkata, including global and Indian giants like TCS, Wipro, Infosys, and Cognizant, employ over 260,000 IT and ITeS professionals in Kolkata.
Top institutes such as IIT Kharagpur and Jadavpur University supply a steady stream of skilled graduates in the city. In addition, the West Bengal government actively supports startups and technology ventures through policy incentives and infrastructure development. For instance, investments of around Rs. 30,000 crore have been allocated to the state’s Silicon Valley project. These projects are attracting new companies and expanding job opportunities across technology domains in Kolkata.
This article lists Kolkata’s top 20 IT and software companies in 2026, highlighting their services, technology focus, and impact on the city’s IT growth.
List of 20 Best IT and Software Companies in Kolkata
This list features the top 20 IT and software companies in Kolkata, selected for their market reputation, quality of services, and successful client projects. These firms excel in software development, cloud computing, AI, enterprise solutions, and digital transformation.
1. Tata Consultancy Services (TCS)
Tata Consultancy Services (TCS) is a global IT services and consulting company. The company helps organizations modernize systems and improve business performance.
| Attribute | Details |
| Establishment Year | 1968 |
| Headquarters | Mumbai, Maharashtra, India |
| Key Services / Technologies | IT consulting, Software development, Cloud & AI solutions, Enterprise services |
| Annual Revenue | Rs. 2,55,324 crore (FY 2024‑25) |
| Website | tcs.com |
TCS runs major development centers in Kolkata’s Salt Lake Sector V and New Town. These offices manage software delivery, digital projects, and enterprise solutions. The company also hires local talent and supports flexible and hybrid work models.
2. Wipro
Wipro is a global IT services and consulting company based in India. The company serves clients in more than 65 countries and employs over 230,000 professionals worldwide.
| Attribute | Details |
| Establishment Year | 1945 |
| Headquarters | Bengaluru, Karnataka, India |
| Key Services / Technologies | IT consulting, Cloud solutions, Digital & AI services |
| Annual Revenue | Rs. 89,090 crore (FY 2024-25) |
| Website | wipro.com |
Wipro’s Kolkata offices in Salt Lake and New Town include a 1.7 lakh sq. ft. leased workspace for around 3,000 employees.
3. Cognizant Technology Solutions
Cognizant is a global IT services and consulting company. The company employs over 336,000 professionals globally.
| Attribute | Details |
| Establishment Year | 1994 |
| Headquarters | Teaneck, New Jersey, USA |
| Key Services / Technologies | IT consulting, Digital transformation, Cloud & AI solutions |
| Annual Revenue | Rs. 1,89,635 crore (FY 2024-25) |
| Website | cognizant.com |
Its latest office at Infospace in Kolkata’s Salt Lake and New Town areas spans about 2,50,000 sq. ft. and accommodates over 3,000 employees.
4. Infosys
Infosys is a global IT services and software development company. The company employs over 320,000 professionals across more than 59 countries.
| Attribute | Details |
| Establishment Year | 1981 |
| Headquarters | Bengaluru, Karnataka, India |
| Key Services / Technologies | IT consulting, Cloud & AI solutions, Digital engineering |
| Annual Revenue | Rs. 1,62,990 crore (FY 2024‑25) |
| Website | infosys.com |
Infosys operates a large development center in New Town, Kolkata. The facility covers about 320,000 sq. ft. and can accommodate over 4,000 employees in a hybrid working model. It focuses on software development, enterprise solutions, and digital transformation projects.
5. HCL Technologies (HCLTech)
HCL Technologies is a global IT services company. The company employs over 2,20,000 professionals across 60+ countries.
| Attribute | Details |
| Establishment Year | 1976 |
| Headquarters | Noida, India |
| Key Services / Technologies | IT consulting, Cloud & AI, Engineering services, Infrastructure solutions |
| Annual Revenue | Rs. 117,055 crore (FY 2024-25) |
| Website | hcltech.com |
HCLTech’s Kolkata operations focus on software development, application maintenance, and IT infrastructure services. The company recruits local talent and supports enterprise clients across various industries.
6. Tech Mahindra
Tech Mahindra is a global IT services and digital solutions company. The company employs about 1,58,000 professionals worldwide.
| Attribute | Details |
| Establishment Year | 1986 |
| Headquarters | Pune, Maharashtra, India |
| Key Services / Technologies | IT consulting, Cloud solutions, Enterprise applications, Business automation |
| Annual Revenue | Rs. 52,988 crore (FY 2024‑25) |
| Website | techmahindra.com |
Tech Mahindra’s Kolkata office handles software development and digital transformation projects. The company also supports businesses exploring Private Limited Company Registration in Kolkata by offering local IT expertise.
7. IBM India
IBM India is the Indian subsidiary of IBM, a global technology and consulting company.
| Attribute | Details |
| Establishment Year | 1911 |
| Headquarters | Armonk, New York, USA |
| Key Services / Technologies | Cloud, AI, Enterprise software, Cybersecurity |
| Annual Revenue | Rs. 33,300 crore (FY 2024-25) |
| Website | ibm.com |
IBM’s Kolkata presence focuses on software services, consulting, and IT solutions. The office supports local talent and remote teams for enterprise projects.
8. Capgemini SE
Capgemini is a global IT consulting and digital services company. The company has about 4.2 lakh employees globally. Around 2.3 lakh of them are based in India, highlighting the country’s key role in its service delivery.
| Attribute | Details |
| Establishment Year | 1967 |
| Headquarters | Paris, France |
| Key Services / Technologies | Consulting, Digital solutions, Cloud & AI, Enterprise services |
| Annual Revenue | Rs. 2,342,176 crore (FY 2024) |
| Website | capgemini.com |
Capgemini operates in Kolkata with a large office in Candor Tech Space. The facility spans 2.3 lakh sq. ft. and hosts 7,000 professionals in consulting and IT services. It serves both domestic and international clients while supporting local talent growth.
9. Accenture
Accenture is a global consulting and IT services firm offering strategy, digital transformation, cloud, and AI solutions. It serves clients in more than 120 countries. The company employs around 7.7 lakh professionals worldwide.
| Attribute | Details |
| Establishment Year | 1989 |
| Headquarters | Dublin, Ireland |
| Key Services / Technologies | IT consulting, Digital & Cloud services, AI solutions |
| Annual Revenue | Rs. 6,34,270 crore (FY 2025) |
| Website | accenture.com |
Accenture’s Kolkata office delivers software solutions, consulting, and business automation services. It employs local professionals and supports hybrid work models.
10. Deloitte
Deloitte is a global technology and consulting firm. The company employs about 470,000 professionals globally as of FY 2025, making it one of the largest professional services networks in the world.
| Attribute | Details |
| Establishment Year | 1845 |
| Headquarters | London, UK |
| Key Services / Technologies | Tech consulting, Enterprise solutions, Digital transformation |
| Annual Revenue | Rs. 6.4 lakh crore (FY 2025) |
| Website | deloitte.com |
Deloitte expanded its India presence by opening a delivery office in Kolkata to serve domestic and global clients. The location is part of a broader network where 10,000+ skilled professionals in India work on AI, cloud, cybersecurity, and technology modernization projects.
11. LTIMindtree
LTIMindtree, rebranded as LTM Limited, is an AI-centric global technology services company. It combines human insights with intelligent systems to help enterprises create value through technology and domain expertise.
| Attribute | Details |
| Establishment Year | 1997 (merged as LTIMindtree in 2022 from L&T Infotech and Mindtree) |
| Headquarters | Mumbai, Maharashtra, India |
| Key Services / Technologies | IT consulting, Cloud & AI, Enterprise software solutions |
| Annual Revenue | Rs. 37,000 crore (FY 2024-25) |
| Website | ltm.com |
LTIMindtree’s Kolkata office supports digital transformation and enterprise IT projects in the Bengal Silicon Valley tech hub.
12. Indus Net Technologies
Indus Net Technologies is a digital transformation and IT services company based in Kolkata. The company employs 1000+ professionals and serves clients across industries.
| Attribute | Details |
| Establishment Year | 1997 |
| Headquarters | Kolkata, West Bengal, India |
| Key Services / Technologies | Digital transformation, Cloud & web solutions, Enterprise software |
| Annual Revenue | Rs. 1,33.1 crore (FY 2024-25) |
| Website | indusnet.co.in |
The company operates locally from Kolkata, providing software development, IT consulting, and digital services for global and domestic clients.
13. Capital Numbers Infotech
Capital Numbers Infotech is a software development and digital solutions company headquartered in Kolkata. The company employs 500+ professionals across its global delivery teams.
| Attribute | Details |
| Establishment Year | 2012 |
| Headquarters | Kolkata, West Bengal, India |
| Key Services / Technologies | Software development, E-commerce solutions, Cloud services |
| Annual Revenue | Rs. 105.68 crore (FY 2024-25) |
| Website | capitalnumbers.com |
Capital Numbers operates from Kolkata, serving global clients with software engineering, web and mobile applications, and IT solutions. Its work supports digital projects for startups and enterprise clients while growing local tech talent.
14. Concentrix
Concentrix is a global IT-enabled services and digital transformation company. The firm supports over 450,000 employees worldwide, powering digital and IT work at scale.
| Attribute | Details |
| Establishment Year | 1983 |
| Headquarters | Fremont, California, USA |
| Key Services / Technologies | Information Technology Enabled Services (ITES), Customer support, Digital transformation |
| Annual Revenue | Rs. 89,100 crore (FY 2024-25) |
| Website | concentrix.com |
Concentrix’s Kolkata office supports enterprise clients with digital operations and IT solutions.
15. Mphasis
Mphasis is a global IT services company with a strong international presence. The company employs around 32,000 professionals worldwide across technology and services functions.
| Attribute | Details |
| Establishment Year | 1998 |
| Headquarters | Bengaluru, Karnataka, India |
| Key Services / Technologies | IT consulting, Cloud services, Application development, Digital solutions |
| Annual Revenue | Rs. 14,230 crore (FY 2024-25) |
| Website | mphasis.com |
Mphasis’s Kolkata office focuses on enterprise software, cloud solutions, and IT consulting projects. It actively recruits local talent and supports regional IT initiatives as part of its broader delivery network.
16. Sonata Software
Sonata Software is a global IT consulting and digital solutions company. The company employs about 6,400 professionals worldwide as of March 2025.
| Attribute | Details |
| Establishment Year | 1986 |
| Headquarters | Bengaluru, Karnataka, India |
| Key Services / Technologies | IT consulting, Digital solutions, Cloud services, Software development |
| Annual Revenue | Rs. 10,157.2 crore (FY 2024-25) |
| Website | sonata-software.com |
Sonata Software operates in Kolkata, focusing on software development, enterprise applications, and cloud solutions for domestic and international clients. The company contributes to the city’s IT ecosystem while supporting local tech talent.
17. ITC Infotech India Limited
ITC Infotech India Limited is a technology services and solutions provider and a wholly owned subsidiary of ITC Limited.
| Attribute | Details |
| Establishment Year | 1996 |
| Headquarters | Kolkata, West Bengal, India |
| Key Services / Technologies | IT consulting, Digital solutions, Enterprise software |
| Annual Revenue | Rs. 3,330 crore (FY 2024-25) |
| Website | itcinfotech.com |
Headquartered in Kolkata, ITC Infotech delivers technology consulting and digital solutions for sectors such as banking, healthcare, and manufacturing. The company focuses on hiring local talent and enabling enterprise IT projects across India.
18. SAP India Pvt Ltd
SAP India is the Indian subsidiary of SAP SE, a global leader in enterprise software and business solutions. The company supports ERP, cloud platforms, business analytics, and digital transformation projects.
| Attribute | Details |
| Establishment Year | 1996 (India operations) |
| Headquarters | Bengaluru, Karnataka, India |
| Key Services / Technologies | Enterprise software, Cloud solutions, Analytics, Application modernization |
| Annual Revenue | Rs. 8,870 crore (FY 2024-25) |
| Website | sap.com |
SAP India’s Kolkata office focuses on enterprise software deployment, cloud solutions, and analytics projects, supporting regional clients and local talent development.
19. RS Software
RS Software is a global software technology company headquartered in Kolkata. It develops payment and fintech software used by financial institutions, payment processors, and enterprise platforms worldwide.
| Attribute | Details |
| Establishment Year | 1987 |
| Headquarters | Kolkata, West Bengal, India |
| Key Services / Technologies | Fintech software, Payment systems, Enterprise solutions |
| Annual Revenue | Rs. 57.32 crore (FY 2024-25) |
| Website | rssoftware.com |
RS Software operates from Kolkata, building advanced payment and enterprise software solutions for clients across India and abroad. The company supports digital transformation in the BFSI and fintech sectors while growing local tech talent.
20. Kantech Solutions
Kantech Solutions is a software development and IT consulting company based in Kolkata. The company has a team of 50+ IT professionals working across software and cloud projects.
| Attribute | Details |
| Establishment Year | 2007 |
| Headquarters | Kolkata, West Bengal, India |
| Key Services / Technologies | Software development, Cloud services, IT consulting |
| Annual Revenue | Revenue not disclosed |
| Website | kantechsolutions.in |
The company provides digital and software solutions to local businesses and international clients. It supports enterprise projects, regional IT growth, and virtual offices in Kolkata arrangements for flexible project execution.
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Emerging Trends in Kolkata’s IT Sector and What They Mean for Job Seekers
Kolkata’s IT sector is growing as companies adopt modern digital tools to stay competitive. Startups and large IT firms are using advanced technologies, which create strong opportunities for job seekers and businesses in the city.
Key trends and opportunities in Kolkata’s IT sector are:
- Cloud Computing: Companies are migrating to cloud platforms for better speed and flexibility. This shift increases demand for professionals skilled in AWS, Azure, and Google Cloud.
- Artificial Intelligence & Machine Learning: Firms are using AI and ML to automate tasks and analyze data. Due to this, professionals with Python and machine learning skills can find better roles.
- Data Analytics: As AI use expands, data analytics has become more important. Companies need analysts and BI specialists to turn raw data into useful insights.
- Mobile & Web Applications: To support digital strategies, startups and enterprises build mobile and web applications. Developers, designers, and testers are expected to see more job options.
- Cybersecurity: With more digital systems in place, data security has become critical. This is surging the demand for cybersecurity experts to protect networks and sensitive information.
- Enterprise Software & Automation: With companies adopting ERP systems and automation tools to improve efficiency, professionals with DevOps and automation skills are in high demand.
Simply put, Kolkata’s IT sector continues to create strong career paths for professionals and digital growth for businesses.
Frequently Asked Questions
Top IT companies in Kolkata include TCS, Wipro, Infosys, Cognizant, and HCL Technologies. These firms offer careers in software development, cloud computing, AI, and data analytics. Salt Lake Sector V and New Town offices provide ample job opportunities. Professionals can explore delivery centers and corporate projects to understand growth potential, career paths, and training programs offered locally in the city’s IT ecosystem.
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