The IT services companies in Kolkata range from large, diversified conglomerates to specialized mid-sized firms. Notable examples include mjunction services ltd, which connects buyers and sellers through B2B digital platforms, and Indus Net Technologies (INT.), a provider of full-stack software engineering solutions. Kaizen IT Services Pvt. Ltd. offers smart IT infrastructure services, while Vara specializes in futuristic technology platforms including cybersecurity.
Most of the companies listed are headquartered in Kolkata, indicating a local concentration of IT services expertise. Many of these firms were founded between the late 1990s and the 2010s, suggesting a significant period of growth and establishment for the sector in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
ITC Limiteditcportal.com
Diversified business in FMCG, packaging, paperboards, specialty papers, and agriculture with strong focus on sustainability and rural livelihoods. |
62,035 | |||
| 2 |
RP Sanjiv Goenka Grouprpsg.in
A rapidly expanding conglomerate with diverse holdings in power, energy, manufacturing, retail, IT services, FMCG, media, entertainment, and agriculture sectors |
36,571 | |||
| 3 |
mjunction services ltdmjunction.in
Connecting buyers and sellers in India through trusted B2B digital platforms for eAuctions, eProcurement, and sourcing services with secure technology |
1,335 | |||
| 4 |
Indus Net Technologies (INT.)intglobal.com
It provides full-stack software engineering solutions, focusing on innovation, trust, and sustainability while operating in AI and advanced analytics. |
1,088 | |||
| 5 |
Kaizen IT Services Pvt. Ltd.kaizencare.net
A leading IT services company offering smart IT infrastructure services, Managed IT Services, and Outsourced Technical Staff to blue chip companies and government organizations |
1,014 | |||
| 6 |
Varavaratechnology.com
Innovative company specializing in futuristic technology platforms to enhance businesses, including solutions in technology, infrastructure, and cyber security |
597 | |||
| 7 |
Woodrock Infotech Private Limited
The company offers consulting services to help businesses grow their tech teams, improve marketing, and enhance customer service for success |
560 | |||
| 8 |
Supertron Electronics Private Limitedsupertronindia.com
A leading Indian IT product distribution company with national presence, offering a wide range of products from global brands to channel partners nationwide |
520 | |||
| 9 |
Wizertech Informatics Pvt. Ltd.wizertech.com
A multi-national IT systems integrator with expertise in Oracle consulting, network and data security, cloud application development, data protection, and digitalization |
481 | |||
| 10 |
Pinnacle Labspinnaclelabs.tech
An innovative IT services company offering cutting-edge solutions in web development, cybersecurity, data science, and more to empower businesses in the tech landscape |
475 | |||
| 11 |
MOL Information Technologymol-it.com
A global IT company specializing in providing ICT solutions for shipping and logistics, focusing on operational excellence and digital transformation |
447 | |||
| 12 |
NRI FT Indianrifintech.com
Specializing in financial technology solutions, this company focuses on product development, client implementations, maintenance, support, software testing, and test automation for Capital Markets |
434 | |||
| 13 |
Tranistics Data Technologies Pvt. Ltd.tranistics.com
A Nevada-based in-corporation offering data processing, freight bill audit, software development, manpower staffing, and augmentation services to global companies |
428 | |||
| 14 |
Experis Indiaexperisindia.com
Specializing in IT staffing, Experis accelerates business growth by providing in-demand talent, workforce solutions, and expertise to enhance competitiveness |
398 | |||
| 15 |
Globsyn-3rdLifeai-workspace.com
Specialized boutique IT services and BPO solutions for fintech, banking, legal, workflow automation, Internet of Things, content management, and digital publications. |
371 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Deloitte & Touche Consulting India Private Limiteddeloitte.com
Consumer services company in Kolkata, West Bengal, India, specializing in consulting and professional services for various industries |
360 | |||
| 17 |
Inadev Indiainadev.com
A minority-owned IT company providing Agile-based solutions to government and commercial clients, specializing in mobile & web development, cloud computing, and CRM implementation |
352 | |||
| 18 |
Stesalit Systems Ltdstesalitsystems.com
Specializing in Location Intelligence, IoT, and Analytics, we empower clients to monitor and optimize their assets in real-time, improving ROI |
350 | |||
| 19 |
Infocus Technologies Pvt ltdinfocusin.com
Kolkata-based consulting company specialized in SAP, ERP & Cloud services Offers implementation, upgrades, migration, and training for SAP systems, including AWS cloud hosting |
331 | |||
| 20 |
CloudKaptancloudkaptan.com
Global IT services provider specializing in AI, data, cloud, Salesforce, analytics, and digital transformation to enhance business efficiency and innovation. |
326 | |||
| 21 |
RT Network Solutions Pvt. Ltd.rtns.in
A leading IT Enabled and Digital Services company with expertise in Networking, GIS applications, Digital Marketing, Website & Mobile App development, and E-commerce design |
307 | |||
| 22 |
MSR IT Ltd.msrlimited.com
Global technology provider delivering business solutions and consultancy services through industry-specific offerings like software development, technical support, and infrastructure management to clients worldwide |
255 | |||
| 23 |
Infiflex Technologies Pvt. Ltd.infiflex.com
A cloud computing company offering consultancy, products, and services to empower businesses with cost-effective, secure, and high-performance solutions globally |
250 | |||
| 24 |
Learning Spiral Ltd.learningspiral.co.in
Leading provider of online examination solutions for universities, including digital marketing services Services include document management, software development, and outsourcing of assessment processes |
229 | |||
| 25 |
Nevaeh Technology Pvt. Ltd.nevaehtech.com
A Business Consulting and Technology company with expertise in various industries, delivering outstanding services and solutions with a focus on integrity and teamwork |
208 | |||
| 26 |
Vibrant Infocom Pvt. Ltd.vibrantinfo.co.in
An innovative leader in telecommunications and business solutions, specializing in customer experience, distribution, retail, and real estate services globally |
196 | |||
| 27 |
SB Infowavessbinfowaves.com
A certified software and mobile app development company specializing in Data Science, AI, ML solutions, and digital marketing services, serving clients in India and globally |
150 | |||
| 28 |
Tech Exactlytechexactly.com
A leading Indian mobile app development company, Tech Exactly helps businesses with app development, web development, blockchain solutions, and custom software development in various industries |
62 | |||
| 29 |
Fleapofleapo.com
A youthful IT solutions provider specializing in mobile and web app development, internet marketing, prioritizing client needs with honesty and integrity |
50 | |||
| 30 |
Dataspace Securitydataspacesecurity.com
Cyber Security company aims to secure online presence through trusted services, reducing vulnerabilities and implementing advanced threat protection for confidentiality, integrity, and availability |
31 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
More company lists in Kolkata
- The largest companies in Kolkata 594
- Manufacturers in Kolkata 115
- Multinational companies in Kolkata 66
- Education providers in Kolkata 65
- Publicly traded companies in Kolkata 55
- Retail chains in Kolkata 53
- Corporate groups and holding companies in Kolkata 49
- IT Services and IT Consulting companies in Kolkata 46
- Critical infrastructure operators in Kolkata 45
- Financial services firms in Kolkata 44
- Companies with in-house R&D in Kolkata 44
- Financial Services companies in Kolkata 36
- Energy companies in Kolkata 34
- Public sector organisations in Kolkata 34
- Healthcare providers in Kolkata 31
- Education Administration Programs companies in Kolkata 27
- Higher Education companies in Kolkata 27
- Hospitals and Health Care companies in Kolkata 27
- Consumer goods companies in Kolkata 26
- Chemical companies in Kolkata 25
The same list elsewhere in India
- IT services companies in India 1,352
- IT services companies in Maharashtra 322
- IT services companies in Karnataka 246
- IT services companies in Tamil Nadu 140
- IT services companies in Uttar Pradesh 126
- IT services companies in Gujarat 97
- IT services companies in Haryana 71
- IT services companies in Telangana 56
- IT services companies in Kerala 42
- IT services companies in West Bengal 38
- IT services companies in Punjab 28
- IT services companies in Bengaluru 227
- IT services companies in Mumbai 145
- IT services companies in Noida 109
- IT services companies in Chennai 107
- IT services companies in Pune 102
- IT services companies in Ahmedabad 73
- IT services companies in Gurugram 64
- IT services companies in New Delhi 61
- IT services companies in Hyderabad 57
- IT services companies in Navi Mumbai 28