Company lists · Data refreshed September 2026

Top 25 Volunteer software development companies based in India

Name: Volunteer software development companies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 4,878 companies tracked

RevenueBase identified 4,878 volunteer software development companies headquartered in India as of September 2026 and tracks 70,814 professional contacts across them, including 6,541 with verified work emails. Ahmedabad is the largest hub.

This list covers volunteer software development companies headquartered in 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

4,878Companies

70,814Contacts tracked

6,541Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest volunteer software development companies based in India

Ranked by team size

Top 25 of 4,878 volunteer software development companies based in India, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to volunteer software development 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	Tatvasoft	Strong evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	1,001-5,000	1,725 contacts →
	Strong evidence “TatvaSoft is a CMMi Level 3 & Microsoft Solutions Partner Software Development Company offering software development services on diverse technology platforms like Microsoft…” Source: RevenueBase Database · checked Sep 29, 2026
2	Girnarsoft	Partial evidence	Jaipur, IndiaHQ checked Sep 29, 2026	1,001-5,000	1,563 contacts →
	Partial evidence “GirnarSoft – Powering Innovation with World-Class Tech Teams At GirnarSoft, we don’t just build software-we build the best engineering teams that help companies across the globe…” Source: RevenueBase Database · checked Sep 29, 2026
3	Clarion Technologies	Indirect evidence	Pune, IndiaHQ checked Sep 29, 2026	201-500	605 contacts →
	Indirect evidence “Driving Innovation.” Source: RevenueBase Database · checked Sep 29, 2026
4	Cg-Vak Software & Exports LTD	Strong evidence	Coimbatore, IndiaHQ checked Sep 29, 2026	501-1,000	580 contacts →
	Strong evidence “CG-VAK Software is a leading offshore software development company with 30 years of industry experience, serving clients across the USA, UK, Canada, Europe, Australia, Singapore…” Source: RevenueBase Database · checked Sep 29, 2026
5	Bebo Technologies	Indirect evidence	Chandigarh, IndiaHQ checked Sep 29, 2026	1,001-5,000	557 contacts →
	Indirect evidence “bebo Technologies has a dedicated, experienced, and skilled group of professional engineers that utilize cutting-edge methodologies, tools, and techniques to develop…” Source: RevenueBase Database · checked Sep 29, 2026
6	Atliq Technologies	Indirect evidence	Vadodara, IndiaHQ checked Sep 29, 2026	51-200	479 contacts →
	Indirect evidence “Purpose drives everything we do.” Source: RevenueBase Database · checked Sep 29, 2026
7	Manektech	Strong evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	201-500	440 contacts →
	Strong evidence “ManekTech is a Software development company based in india with proven competencies in custom software development, iPhone Mobile App Development, SharePoint, ASP.Net, Open…” Source: RevenueBase Database · checked Sep 29, 2026
8	Mitrahsoft Solutions Private Limited	Strong evidence	Kovilpatti, IndiaHQ checked Sep 29, 2026	201-500	355 contacts →
	Strong evidence “We offer a full range of software development services for each & every business domain.” Source: RevenueBase Database · checked Sep 29, 2026
9	Communication Crafts	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	201-500	336 contacts →
	Indirect evidence “Meet Communication Crafts- A Reliable Digital Transformation Partner Countless clients across the globe achieve outstanding business success because they have the advantage on…” Source: RevenueBase Database · checked Sep 29, 2026
10	Iprogrammer Solutions	Indirect evidence	Pune, IndiaHQ checked Sep 29, 2026	201-500	317 contacts →
	Indirect evidence “iProgrammer Solutions Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
11	Iflair WEB Technologies Pvt. LTD	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	201-500	311 contacts →
	Indirect evidence “iFlair Web Technologies Pvt.” Source: RevenueBase Database · checked Sep 29, 2026
12	Ramanasoft	Partial evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	n/a	300 contacts →
	Partial evidence “Transforming your ideas into market-ready software products.” Source: RevenueBase Database · checked Sep 29, 2026
13	Velotio Technologies	Indirect evidence	Pune, IndiaHQ checked Sep 29, 2026	201-500	297 contacts →
	Indirect evidence “Velotio Technologies is a leading product engineering and digital solutions company working with innovative startups and enterprises across the globe.” Source: RevenueBase Database · checked Sep 29, 2026
14	Thoughtline Technologies	Indirect evidence	Trivandrum, IndiaHQ checked Sep 29, 2026	201-500	274 contacts →
	Indirect evidence “Since 2008, ThoughtLine has provided niche, custom solutions to Fortune 50 companies with predictable, consistent service, day in and day out.” Source: RevenueBase Database · checked Sep 29, 2026
15	Synapseindia	Strong evidence	Noida, IndiaHQ checked Sep 29, 2026	201-500	274 contacts →
	Strong evidence “Outsourcing company, SynapseIndia was founded in year provides end-to-end solutions in software development, website development, mobile app development and eCommerce development…” Source: RevenueBase Database · checked Sep 29, 2026
16	Sarvika Technologies	Strong evidence	Jaipur, IndiaHQ checked Sep 29, 2026	201-500	268 contacts →
	Strong evidence “Founded in 2013, Sarvika Technologies is a global software consulting and development company that partners with organizations to engineer scalable, secure, and intelligent…” Source: RevenueBase Database · checked Sep 29, 2026
17	Bigscal Technologies Pvt. LTD	Strong evidence	Surat, IndiaHQ checked Sep 29, 2026	51-200	242 contacts →
	Strong evidence “Bigscal is a software development outsourcing company that specializes in affordable custom software development and software solutions for business.” Source: RevenueBase Database · checked Sep 29, 2026
18	Inteq Software LLP	Indirect evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	201-500	239 contacts →
	Indirect evidence “Inteq is an ISO 9001:2008 certified company with CMMI initiative.” Source: RevenueBase Database · checked Sep 29, 2026
19	LMS Solutions India Pvt. LTD	Strong evidence	Indore, IndiaHQ checked Sep 29, 2026	201-500	234 contacts →
	Strong evidence “Incorporated in 2008, We are full-fledged software design and development company, offering top of the line solutions to its clients globally.” Source: RevenueBase Database · checked Sep 29, 2026
20	Sentientgeeks	Indirect evidence	Kolkata, IndiaHQ checked Sep 29, 2026	51-200	229 contacts →
	Indirect evidence “Are you looking for professional & experienced offshore developers for promoting your brands digitally?” Source: RevenueBase Database · checked Sep 29, 2026
21	Nexuslink Services India PVT LTD	Partial evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	51-200	215 contacts →
	Partial evidence “At NexusLink, we are a forward-thinking IT outsourcing company with a robust offshore development center in India.” Source: RevenueBase Database · checked Sep 29, 2026
22	Metadesign Solutions	Strong evidence	Gurgaon, IndiaHQ checked Sep 29, 2026	201-500	211 contacts →
	Strong evidence “MetaDesign Solutions, based in Gurgaon, India, is a leading provider of end-to-end Digital Product Engineering and Offshore Software Development Services.” Source: RevenueBase Database · checked Sep 29, 2026
23	The ONE Technologies	Strong evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	51-200	211 contacts →
	Strong evidence “The One Technologies is a software development company that helps businesses build custom web, mobile, and cloud solutions.” Source: RevenueBase Database · checked Sep 29, 2026
24	Angler Technologies India PVT LTD	Strong evidence	Coimbatore, IndiaHQ checked Sep 29, 2026	51-200	197 contacts →
	Strong evidence “ANGLER Technologies is an ISO 9001 offshore software development company from India specialized in offering IT outsourcing services, outsourced product development, mobile…” Source: RevenueBase Database · checked Sep 29, 2026
25	Zealous System	Strong evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	51-200	187 contacts →
	Strong evidence “Zealous System is a trusted technology leader in software and web development services, having expertise in mobile app development for various platforms – iOS, Android – as well…” 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: volunteer software development 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 volunteer software development companies.
Partial evidence: Its own public description names part of volunteer software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name volunteer software development 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 4,878 volunteer software development companies based in India

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 6,541 reachable decision-makers.

Free signup · no credit card

View the full list →

Volunteer software development companies based in India at a glance

As of Sep 29, 2026

9.2%Verified-email coverage

14.5Average contacts per company

11-50Median size (employees)

8.9%Largest-city concentration · Ahmedabad

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,740

11-50

2,373

51-200

589

201-500

121

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 4,878 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 volunteer software development 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 India whose own description of what they do matches “volunteer software development 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 volunteer software development 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 volunteer software development companies, and records with no verified work email. Companies headquartered outside India 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, 6,541 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.

Volunteer software development companies by metro

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 volunteer software development 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 volunteer software development companies are there based in India?

RevenueBase identified 4,878 volunteer software development companies headquartered in 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?

Tatvasoft, headquartered in Ahmedabad, tops this list with the largest team on record.

Which city has the most volunteer software development companies?

Ahmedabad leads with 435 headquartered companies, followed by Pune (294) and Bangalore (256).

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 6,541 verified decision-maker contacts tracked across these 4,878 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.

Ready to reach these companies? Verified emails and direct dials for all 4,878 volunteer software development companies based in India. Start with a free account, no credit card.

Download this list →

Related lists

Volunteer software development companies by geography

Browse the directory

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.