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 |
