Company lists · Data refreshed November 2026

Top 20 IT and software companies based in Kolkata, India

Name: IT and software companies based in Kolkata, India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 642 companies tracked

RevenueBase identified 642 company matches for IT and software companies associated with Kolkata, India as of November 2026 and tracks 10,136 professional contacts across them, including 1,045 with verified work emails. Across India, Hyderabad is the largest hub for this category (2,255 companies); Kolkata has 642.

This list covers company matches for IT and software companies associated with Kolkata, India, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

642Companies

10,136Contacts tracked

1,045Verified emails

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The 20 largest IT and software companies based in Kolkata, India

Ranked by team size

Top 20 of 642 company matches for IT and software companies based in Kolkata, India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Vareli Tecnac Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	252 contacts →
	Exact match “As one of the growing digital transformation companies, Vareli Tecnac Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Sentientgeeks	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	228 contacts →
	Exact match “Are you looking for professional & experienced offshore developers for promoting your brands digitally?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Nimbus Systems PVT LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “Nimbus Systems is a leading Offshore and Onsite Software Solutions & IT Service provider present in 10 countries, including India, UAE, Europe, and the US.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Esoft Technology Solutions	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	n/a	81 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Entiovi Technologies	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	79 contacts →
	Exact match “Entiovi is a technology solution & services provider helping its customers to grow their business and cut costs using the latest technology solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Xigmapro Software PVT LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	11-50	69 contacts →
	Exact match “Xigmapro Software Pvt Ltd is one of the leading Information Technology company, providing technology solutions to an array of growing clientele, dotted all across USA, UK, Canada…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Fortmindz	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	65 contacts →
	Exact match “At Formindz we strive to offer you a broad experience with industry leading development practices and innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Maxbridge Solution LLP	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	11-50	64 contacts →
	Exact match “First of all let us take the opportunity to introduce Maxbridge Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Infosolz Consultancy Services Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	63 contacts →
	Exact match “Infosolz Consultancy Services Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Albatross Software Services Private Limited	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	201-500	61 contacts →
	Exact match “Founded in 1992, Albatross Software Services Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Blue Copper Technologies PVT LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	11-50	58 contacts →
	Exact match “Blue Copper Technologies builds GRC and compliance software, GIS and urban intelligence platforms, and AI-led product engineering for enterprises and government.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Proclivity Digitech Private Limited	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	54 contacts →
	Exact match “Proclivity Digitech is a leading Software Development and IT organization based in Kolkata, India.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Codebuddy Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	52 contacts →
	Exact match “Codebuddy is an AI-native engineering studio and reliable technology partner, built around our customers’ needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Webee IT Services PVT LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	11-50	49 contacts →
	Exact match “Webee IT Services is a complete Web Solutions, global IT consulting and Digital Marketing Company, assist organizations to think ahead.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Surflex Technology Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	48 contacts →
	Exact match “About Surflex Technology Surflex Technology, a global IT company headquartered in India, stands as a beacon of innovation in business consulting, technology services, and product…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Euphoria Infotech India Private Limited	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	46 contacts →
	Exact match “For Euphoria, “TECH IT EASY” is not just a tag line – it’s reflects our approach to each of our engagements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	The Tech Clouds TTC	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	11-50	43 contacts →
	Exact match “At The Tech Clouds, we specialize in transforming business landscapes through innovative it solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Ultimate Digital Solutions Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	201-500	37 contacts →
	Exact match “It’s a great pleasure to introduce ourselves as a group of young and energetic ‘Engineer turned entrepreneurs’ having Pan India presence, working exclusively with some great…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	ADA Software RE Engineering Services Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	11-50	37 contacts →
	Exact match “Over the years ADA Software has developed its expertise in the re-engineering and modernization of legacy application software and has delivered projects involving large and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	WEB Idea Solution LLP	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	51-200	37 contacts →
	Exact match “Web Idea Solution LLP is a software development and IT consulting company in India providing full-stack solutions for web design, web development, ecommerce, app development…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT and software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 20 of 642 IT and software companies based in Kolkata, India

See the full list, filter by size, metro and specialty, and access 1,045 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT and software companies based in Kolkata, India at a glance

As of Nov 6, 2026

10.3%Verified-email coverage

15.8Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

198

11-50

315

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole India list rather than for Kolkata, so it is reported there. Company counts and contact totals on this page are exact for Kolkata, over 642 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Kolkata, India whose business descriptions match “IT and software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 1,045 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT and software companies by metro in India

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT and software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT and software companies are there based in Kolkata, India?

RevenueBase identified 642 company matches for IT and software companies associated with Kolkata, India as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Vareli Tecnac Pvt. LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in India has the most IT and software companies?

Hyderabad leads India with 2,255 company records, followed by Bangalore (2,245) and Pune (1,920). Kolkata has 642.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,045 professional contacts with verified work emails tracked across these 642 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.