Kolkata, once primarily known as India’s cultural capital, is quickly gaining recognition as an emerging hub for Information Technology and software services. With world-class infrastructure like Salt Lake Sector V and New Town’s Bengal Silicon Valley Tech Hub, the city is home to both tech giants and fast-growing startups. These companies offer lucrative career opportunities, innovative projects, and global exposure — making Kolkata a smart choice for IT professionals and fresh graduates alike.
1. Tata Consultancy Services (TCS)
Headquarters: Mumbai
Kolkata Location: Bantala SEZ, New Town
Employees in Kolkata: 12,000+
TCS is the largest IT company in India, and its Kolkata branch plays a critical role in its global operations. From cloud computing to enterprise software, the company covers almost every IT vertical. TCS is also one of the top recruiters of freshers in West Bengal.
Key Services:
- IT consulting
- Cloud solutions
- Cybersecurity
- Banking and financial tech
Website: www.tcs.com
Phone: 033 6688 1000
2. IBM India Pvt. Ltd.
Location: DLF IT Park, Rajarhat
Global Headquarters: Armonk, New York
IBM is a pioneer in IT innovation with a significant Kolkata presence. Its Kolkata operations are focused on cloud, artificial intelligence (AI), data analytics, and blockchain.
Key Strengths:
- Quantum computing R&D
- Enterprise software development
- Business automation solutions
Website: www.ibm.com
Phone: 033 2339 4000
Email: rccindia@in.ibm.com
3. Cognizant Technology Solutions
Kolkata Office: Sector V, Salt Lake
Founded: 1994
Cognizant is known for its strong digital transformation services and has a large delivery center in Kolkata. It works closely with BFSI (banking, financial services, and insurance), healthcare, and retail sectors.
Popular Services:
- Application modernization
- Cloud migration
- Data engineering
Website: www.cognizant.com
Phone: 033 4402 1100
Email: inquiry@cognizant.com
4. Wipro Technologies
Office: New Town, Action Area I
Sector: IT, BPO, Consulting
Wipro is a global IT leader with its Kolkata campus serving clients in the US, UK, and APAC markets. The company’s service offerings include SAP consulting, digital operations, and robotic process automation (RPA).
Highlights:
- Excellent for engineering graduates
- Emphasis on sustainability and green tech
Website: www.wipro.com
Phone: 033 4461 0100
Mail: info@wipro.com
5. Infosys Ltd.
Kolkata Branch: Sector V, Salt Lake
Established: 1981 (Bangalore HQ)
Infosys is a major IT player with deep roots in Kolkata’s tech ecosystem. Its office focuses on AI, machine learning, cybersecurity, and automation, contributing to national and global client portfolios.
Notable Projects:
- Government tech platforms
- Education & FinTech solutions
Website: www.infosys.com
Phone: +91 3218 352103
6. Accenture
Location: DLF IT Park, Rajarhat
Industry: Management consulting and IT services
Accenture delivers end-to-end technology solutions and has expanded rapidly in Kolkata over the last five years. Their expertise lies in ERP (SAP/Oracle), cloud transformation, and Industry X.0 (smart manufacturing).
Key Clients:
- Fortune 500 enterprises
- E-commerce giants
Website: www.accenture.com
Phone: 033 4407 8000
7. Capgemini India
Office: New Town, Kolkata
Global HQ: Paris, France
Capgemini provides digital transformation services, focusing on cloud platforms, AI, and edge computing. Their Kolkata facility serves clients in the automotive, energy, and retail industries.
What Makes It Stand Out:
- Active in AI and blockchain R&D
- Strong internship programs with local colleges
Website: www.capgemini.com
Phone: 033 6621 5000
8. Tech Mahindra
Kolkata Office: Sector V
Specialization: Telecom, network services, digital customer experience
Part of the Mahindra Group, Tech Mahindra’s Kolkata unit is known for its telecom software solutions and 5G engineering services. It also has a growing team working on IoT and mobility solutions.
Major Projects:
- 5G deployment for global telecoms
- Smart city tech integration
Website: www.techmahindra.com
Phone: 033 4002 7300
9. Deloitte India
Location: Ecospace Business Park, New Town
Service Line: IT consulting, audit, cyber-risk
Deloitte’s Kolkata office offers tech-based financial advisory, AI-enabled risk assessment, and blockchain auditing solutions. Their IT team collaborates on government and corporate digital projects.
Best For:
- CA + Tech background professionals
- Cybersecurity experts
Website: www2.deloitte.com
Phone: 033 6612 1000
10. SAP India Pvt. Ltd.
Office Location: Rajarhat, DLF IT Park
Specialties: Enterprise Resource Planning (ERP), CRM, cloud
SAP is a global software leader known for its ERP systems. Their Kolkata office supports SAP HANA development, cloud migration, and SAP S/4HANA consulting for clients across Asia-Pacific.
Website: www.sap.com
Phone: 033 3058 2424
Emerging Startups in Kolkata’s Tech Scene
Apart from the MNCs, several homegrown software companies and startups are making waves:
- iB Arts Pvt. Ltd. – UX/UI design, app development
- Indus Net Technologies – Web & mobile solutions
- Blue Copper Technologies – AI & automation tools
- Web Spiders – AR/VR enterprise solutions
Kolkata’s vibrant startup culture is fueled by incubators like Webel-BCC&I Tech Incubation Centre and NASSCOM 10,000 Startups.
The Powerhouses: Salt Lake Sector V and New Town
These two hubs form the IT backbone of Kolkata:
- Salt Lake Sector V: Traditional IT hub with companies like TCS, Wipro, Cognizant.
- New Town (Rajarhat): Home to DLF IT Park, Accenture, IBM, and Bengal Silicon Valley Tech Hub.
Bengal Silicon Valley is expected to create over 100,000 IT jobs, with upcoming data centers, cloud parks, and international tech investments.
Final Thoughts
Kolkata’s IT growth story is just beginning. From TCS to startups like Logic Square, the city is providing cost-effective infrastructure, skilled talent, and a high quality of life to tech professionals. If you’re seeking a career in software, AI, cloud, or consulting — Kolkata is no longer just an affordable choice, but a strategic one.
