Company lists · Data refreshed September 2026

Top 25 Volunteer software development companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 23,225 companies tracked

RevenueBase identified 23,225 volunteer software development companies worldwide as of September 2026 and tracks 239,281 professional contacts across them, including 37,531 with verified work emails. India is the largest market and Ahmedabad the largest hub.

This list covers volunteer software development companies worldwide, 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. Country and city lists for volunteer software development companies follow the table.

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

23,225Companies

239,281Contacts tracked

37,531Verified emails

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

The 25 largest volunteer software development companies worldwide

Ranked by team size

Top 25 of 23,225 volunteer software development companies worldwide, 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	TMA Solutions	Partial evidence	Ho Chi Minh, VietnamHQ checked Sep 29, 2026	1,001-5,000	3,002 contacts →
	Partial evidence “TMA is a leading software company in Vietnam with engineers and 28 years of experience in providing quality software services for clients in 30 countries.” Source: RevenueBase Database · checked Sep 29, 2026
2	Chetu, INC	Partial evidence	Sunrise, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,943 contacts →
	Partial evidence “Chetu is your seamless backend technology partner, helping startups, SMBs, and Fortune companies accelerate development of desktop, mobile, and web apps with on-demand developers…” Source: RevenueBase Database · checked Sep 29, 2026
3	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
4	Dotsquares	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	1,581 contacts →
	Indirect evidence “We leverage the latest web and mobile technologies to build, grow and support your business.” Source: RevenueBase Database · checked Sep 29, 2026
5	Sigma Software Group	Partial evidence	Stockholm, SwedenHQ checked Sep 29, 2026	1,001-5,000	1,566 contacts →
	Partial evidence “Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 24 years, providing comprehensive IT solutions to various businesses, ranging…” Source: RevenueBase Database · checked Sep 29, 2026
6	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
7	In Time TEC	Indirect evidence	Meridian, ID, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,139 contacts →
	Indirect evidence “In Time Tec is a platform dedicated to Creating Abundance.” Source: RevenueBase Database · checked Sep 29, 2026
8	Folio3 Software	Strong evidence	San Mateo, CA, United StatesHQ checked Sep 29, 2026	501-1,000	846 contacts →
	Strong evidence “Folio3 is a California based software development company that helps entrepreneurs and large corporations build innovative, world class software solutions by providing offshore…” Source: RevenueBase Database · checked Sep 29, 2026
9	BJIT	Strong evidence	Dhaka, CA, United StatesHQ checked Sep 29, 2026	501-1,000	711 contacts →
	Strong evidence “BJIT is a global leader in offshore software development and IT outsourcing services.” Source: RevenueBase Database · checked Sep 29, 2026
10	Nextbridge LTD	Indirect evidence	Lahore, PakistanHQ checked Sep 29, 2026	201-500	669 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
11	Ceiba Software	Partial evidence	Medellín, ColombiaHQ checked Sep 29, 2026	501-1,000	641 contacts →
	Partial evidence “Ceiba Software provides custom software services, helping clients solve complex technical challenges with comprehensive, value-add staff augmentation and managed teams.” Source: RevenueBase Database · checked Sep 29, 2026
12	Axon Active	Strong evidence	Ho Chi Minh City, VietnamHQ checked Sep 29, 2026	501-1,000	615 contacts →
	Strong evidence “Founded in 2008, Axon Active is a Swiss-based software development company with over 15 years of successful business.” Source: RevenueBase Database · checked Sep 29, 2026
13	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
14	EUVIC	Indirect evidence	Gliwice, PolandHQ checked Sep 29, 2026	5,001-10,000	591 contacts →
	Indirect evidence “Euvic is Poland's leading IT service provider that can help you to make your business more cost-efficient and agile.” Source: RevenueBase Database · checked Sep 29, 2026
15	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
16	CELAD	Partial evidence	Toulouse, FranceHQ checked Sep 29, 2026	1,001-5,000	570 contacts →
	Partial evidence “Consulting and Engineering in innovative technology Celad is a global software engineering company with over 1200 engineers.” Source: RevenueBase Database · checked Sep 29, 2026
17	Asal Technologies	Indirect evidence	Amman, JordanHQ checked Sep 29, 2026	201-500	566 contacts →
	Indirect evidence “ASAL Technologies was established in the year and has since grown to become the foremost Technology Company across Jordan, UAE and Palestine.” Source: RevenueBase Database · checked Sep 29, 2026
18	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
19	Softteco	Strong evidence	Warsaw, PolandHQ checked Sep 29, 2026	501-1,000	539 contacts →
	Strong evidence “SoftTeco is a software development company that was founded in 2008 providing custom software development services.” Source: RevenueBase Database · checked Sep 29, 2026
20	Softura	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 29, 2026	201-500	534 contacts →
	Partial evidence “Softura is an organization that specializes in providing state-of-the-art software solutions on a wide range of platforms to simplify any un-scalable process.” Source: RevenueBase Database · checked Sep 29, 2026
21	Codecentric AG	Partial evidence	Solingen, GermanyHQ checked Sep 29, 2026	501-1,000	490 contacts →
	Partial evidence “Seit zwei Dekaden entwickelt die codecentric AG moderne, individuelle Software.” Source: RevenueBase Database · checked Sep 29, 2026
22	JIT Team	Strong evidence	Gdynia, PolandHQ checked Sep 29, 2026	501-1,000	488 contacts →
	Strong evidence “We provide complete software development teams, who will take complex care of your software.” Source: RevenueBase Database · checked Sep 29, 2026
23	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
24	Acid Labs	Strong evidence	Santiago, ChileHQ checked Sep 29, 2026	501-1,000	470 contacts →
	Strong evidence “Acid Labs is an end-to-end software design and development firm.” Source: RevenueBase Database · checked Sep 29, 2026
25	Framework Digital	Strong evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	501-1,000	460 contacts →
	Strong evidence “We are a software development group with focus on web and mobile development projects.” 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 23,225 volunteer software development companies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 37,531 reachable decision-makers.

Free signup · no credit card

View the full list →

Volunteer software development companies worldwide at a glance

As of Sep 29, 2026

15.7%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · Ahmedabad

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

12,446

11-50

8,248

51-200

1,974

201-500

370

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for volunteer software development companies are linked below.
What qualifies: Companies worldwide 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.
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, 37,531 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 location

135 lists · largest first

Every Volunteer software development companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 23,225 volunteer software development companies worldwide 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?

TMA Solutions, headquartered in Ho Chi Minh, tops this list with the largest team on record.

Which country has the most volunteer software development companies?

India leads with 4,878 companies, followed by the United States (2,652) and Pakistan (1,034). Every volunteer software development companies list by country and city is linked on this page.

Which city has the most volunteer software development companies?

Ahmedabad leads with 434 headquartered companies, followed by Lahore (394) and London (338).

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 37,531 verified decision-maker contacts tracked across these 23,225 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 23,225 volunteer software development companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.