Company lists · Data refreshed September 2026

Top 25 SaaS app developer companies based in Kolkata, India

Name: SaaS app developer companies based in Kolkata, India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 236 companies tracked

RevenueBase identified 236 SaaS app developer companies headquartered in Kolkata, India as of September 2026 and tracks 3,102 professional contacts across them, including 719 with verified work emails. Across India, Ahmedabad is the largest hub for this category (858 companies); Kolkata has 236.

This list covers SaaS app developer companies headquartered in Kolkata, India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

236Companies

3,102Contacts tracked

719Verified emails

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The 25 largest SaaS app developer companies based in Kolkata, India

Ranked by team size

Top 25 of 236 SaaS app developer companies based in Kolkata, India, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to SaaS app developer companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Capital Numbers	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	501-1,000	641 contacts →
	Partial evidence “Capital Numbers – Transforming Businesses with AI, Cloud & Digital Engineering BSE-Listed \| 500+ Experts \| AI, Cloud, Data, System Integration & Custom Software Development We…” Source: RevenueBase Database · checked Sep 29, 2026
2	Brainium Information Technologies	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	201-500	310 contacts →
	Indirect evidence “Brainium Information Technologies is an AI-First technology partner helping businesses build, scale, and modernize digital products faster with intelligence built in.” Source: RevenueBase Database · checked Sep 29, 2026
3	Sentientgeeks	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	229 contacts →
	Partial evidence “Are you looking for professional & experienced offshore developers for promoting your brands digitally?” Source: RevenueBase Database · checked Sep 29, 2026
4	Citytech Software Microsoft Gold Partner	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	122 contacts →
	Partial evidence “Citytech Software is a Kolkata, India-based premier Software Development and IT Consulting company.” Source: RevenueBase Database · checked Sep 29, 2026
5	Nimbus Systems PVT LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	99 contacts →
	Indirect evidence “Nimbus Systems is a leading Offshore and Onsite Software Solutions & IT Service provider present in 10 countries, including India, UAE, Europe, and the US.” Source: RevenueBase Database · checked Sep 29, 2026
6	Webgen Technologies	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	86 contacts →
	Indirect evidence “Founded in mid-2011, Webgen Technologies is a technologically advanced, people-centric, ambitious & customer-focused company.” Source: RevenueBase Database · checked Sep 29, 2026
7	Esoft Technology Solutions	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	n/a	74 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
8	Fortmindz	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	71 contacts →
	Partial evidence “At Formindz we strive to offer you a broad experience with industry leading development practices and innovation.” Source: RevenueBase Database · checked Sep 29, 2026
9	Fleapo	Strong evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	55 contacts →
	Strong evidence “Fleapo Corporation is a Young & Professional Information Technology Solutions Provider specializing in Mobile Apps Development, Customised Web Apps Development and Internet…” Source: RevenueBase Database · checked Sep 29, 2026
10	Albatross Software Services Private Limited	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	201-500	55 contacts →
	Indirect evidence “Founded in 1992, Albatross Software Services Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
11	Growth Loops Technology	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	45 contacts →
	Partial evidence “Growth Loops Technology is a leading software development agency that provides end-to-end solutions to help businesses achieve their digital goals.” Source: RevenueBase Database · checked Sep 29, 2026
12	Webmaa	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	45 contacts →
	Indirect evidence “Webmaa is your digital partner for innovative web, mobile, and cloud solutions.” Source: RevenueBase Database · checked Sep 29, 2026
13	Kotai Electronics Pvt. LTD	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	38 contacts →
	Partial evidence “We are a custom software development company, specialized in IoT and Enterprise solutions.” Source: RevenueBase Database · checked Sep 29, 2026
14	Mobotics Technologies Private Limited	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	27 contacts →
	Partial evidence “Mobotics Technologies Private Limited is a leading Software Development and IT services company with over a decade of experience in delivering cutting-edge solutions.” Source: RevenueBase Database · checked Sep 29, 2026
15	Openweb Solutions	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	23 contacts →
	Indirect evidence “Openweb Solutions is a technology service provider, providing analytics, cloud, web and mobility services to organizations across the globe.” Source: RevenueBase Database · checked Sep 29, 2026
16	Techwens	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	22 contacts →
	Partial evidence “Techwens is the best Custom Enterprise Software Development Services in India.” Source: RevenueBase Database · checked Sep 29, 2026
17	Centreax Technologies	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	20 contacts →
	Partial evidence “Centreax Technologies a software development and consulting organization providing application development, security consulting and IT Managed services to a number of domestic and…” Source: RevenueBase Database · checked Sep 29, 2026
18	Shanvia Tech Solutions PVT LTD	Strong evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	19 contacts →
	Strong evidence “We (M/S Shanvia Tech Solutions Pvt Ltd) house a team of experts (proficient in custom Web Application Development, Mobile Apps Development, AI Development, Software Development…” Source: RevenueBase Database · checked Sep 29, 2026
19	Wift CAP Solutions PVT LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	18 contacts →
	Indirect evidence “Wift Cap Solutions Pvt Ltd is a software services company based in Kolkata, India.” Source: RevenueBase Database · checked Sep 29, 2026
20	Unnatim	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	501-1,000	17 contacts →
	Indirect evidence “Unnatim India Limited is a Software company in India.” Source: RevenueBase Database · checked Sep 29, 2026
21	Primawave Software Private Limited	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	501-1,000	15 contacts →
	Indirect evidence “Welcome to Primawave Software Private Limited, where we unleash the power of cutting-edge IT solutions to fuel your business's growth, efficiency, and success in the digital era.” Source: RevenueBase Database · checked Sep 29, 2026
22	Arisu APP Solutions Pvt. LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
23	Cattlefield Technologies	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “cattlefield™ (Cattlefield Technologies India Private Limited) a fast growing company with divisions of Software Development, Information and Cyber Security, Training and Skill…” Source: RevenueBase Database · checked Sep 29, 2026
24	Dotlinker	Partial evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	14 contacts →
	Partial evidence “We are a software development company offering extensible and end-to-end software solutions, mobile applications, web applications, AI-driven platforms, enterprise portals…” Source: RevenueBase Database · checked Sep 29, 2026
25	WIT By BIT	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Wit By Bit helps enterprises ease day-to-day operations with fast, elegant, and reliable applications.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: SaaS app developer companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names SaaS app developer companies.
Partial evidence: Its own public description names part of SaaS app developer companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name SaaS app developer companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 236 SaaS app developer companies based in Kolkata, India

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SaaS app developer companies based in Kolkata, India at a glance

As of Sep 29, 2026

23.2%Verified-email coverage

13.1Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

119

51-200

201-500

501-1,000

1,001-5,000

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 236 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among SaaS app developer companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Kolkata, India whose own description of what they do matches “SaaS app developer companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names SaaS app developer companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among SaaS app developer companies, and records with no verified work email. Companies headquartered outside Kolkata are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 719 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

SaaS app developer companies by metro in India

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names SaaS app developer companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many SaaS app developer companies are there based in Kolkata, India?

RevenueBase identified 236 SaaS app developer companies headquartered in Kolkata, India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Capital Numbers, headquartered in Kolkata, tops this list with the largest team on record.

Which city in India has the most SaaS app developer companies?

Ahmedabad leads India with 858 headquartered companies, followed by Pune (738) and Bangalore (671). Kolkata has 236.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 719 verified decision-maker contacts tracked across these 236 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.