Company lists · Data refreshed November 2026

Top 25 Client or server programming services based in Kolkata, India

RevenueBase identified 299 company matches for client or server programming services associated with Kolkata, India as of November 2026 and tracks 2,751 professional contacts across them, including 318 with verified work emails. Across India, Ahmedabad is the largest hub for this category (774 companies); Kolkata has 299.

This list covers company matches for client or server programming services 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
299Companies
2,751Contacts tracked
318Verified emails
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The 25 largest client or server programming services based in Kolkata, India

Ranked by team size
Top 25 of 299 company matches for client or server programming services 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-200228 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
2Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20092 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
3Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20065 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
4Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Infosolz Consultancy Services Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20052 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
6Exact matchKolkata, IndiaHQ recorded Nov 6, 2026n/a44 contacts →

Exact match

“Encoders designs, develops and supports customer-focused Internet solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20037 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
8Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Fleapo Corporation is a Young & Professional Information Technology Solutions Provider specializing in Mobile Apps Development, Customised Web Apps Development and Internet…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“RNJ Consultancy Services is a web, software development and consulting firm providing customized solutions to businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Openweb Solutions is a technology service provider, providing analytics, cloud, web and mobility services to organizations across the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“IT development partner who deliver the promise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Ghootmee Technology is a rapidly growing, 30+ person web, desktop and mobile app development company in the heart of Kolkata.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“We provide customized software Solutions, to match client requirements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5016 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“cattlefield™ (Cattlefield Technologies India Private Limited) a fast growing company with divisions of Software Development, Information and Cyber Security, Training and Skill…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Imperium Technology Solutions Pvt Ltd is a premier web development (ISO 9001-2008 certified) company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKolkata, IndiaHQ recorded Nov 6, 2026501-1,00015 contacts →

Exact match

“Unnatim India Limited is a Software company in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“We are a global software development company in India offering powerful information technology solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Digital Web Avenue is a boutique Web Development Company partnering businesses across the world to success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“We have a dedicated team of 20+ developers who have successfully completed more over 130 sites and are growing year on year.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“ORITECH is a young and motivated company full of new ideas and enthusiasm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“AM Infosystems (Previously known as AM-Soft) is a web development company Kolkata India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“At dharma.h, we believe in value creation through innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Infotech lab is the Kolkata based software & web development company,"Registered in May 2003" We are pleased to introduce ourselves as a Premier Indian Information Technology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“OmniMinds is an agentic AI development company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 299 client or server programming services based in Kolkata, India

See the full list, filter by size, metro and specialty, and access 318 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Client or server programming services based in Kolkata, India at a glance

As of Nov 6, 2026
11.6%Verified-email coverage
9.2Average contacts per company
11-50Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
104
11-50
151
51-200
28
201-500
12
501-1,000
1
1,001-5,000
1
10001+
2

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 299 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 “client or server programming services” 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 318 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.

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 “client or server programming services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many client or server programming services are there based in Kolkata, India?

RevenueBase identified 299 company matches for client or server programming services 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?

Sentientgeeks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in India has the most client or server programming services?

Ahmedabad leads India with 774 company records, followed by Noida (554) and Pune (551). Kolkata has 299.

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 318 professional contacts with verified work emails tracked across these 299 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.