Company lists · Data refreshed September 2026
Top 25 Open source IT service management software companies worldwide
RevenueBase identified 144 open source IT service management software companies worldwide as of September 2026 and tracks 3,732 professional contacts across them, including 396 with verified work emails and 663 with mobile numbers. India is the largest market and Paris the largest hub.
This list covers open source IT service management software 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 5, 2026. Country and city lists for open source IT service management software 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.
The 25 largest open source IT service management software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,929 contacts → | ||||
Strong evidence “BMC helps customers run and reinvent their businesses with open, scalable, and modular solutions to complex IT problems.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 152 contacts → | ||||
Indirect evidence “Turbocharge your techs, organize your office, save time, and make more money.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 91 contacts → | ||||
Strong evidence “Frappe creates 100% open source software to help businesses grow sustainably.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 75 contacts → | ||||
Partial evidence “Zestbrains pvt ltd is a Leading software development company based in India catering to the enterprise solutions worldwide.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 74 contacts → | ||||
Strong evidence “TenthPlanet Technologies brings over 20 years of hands-on experience in delivering enterprise-ready open source IT solutions.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 73 contacts → | ||||
Strong evidence “At FCOOS, we provide IT infrastructure, email, firewall support, and other critical IT solutions based on open-source technology to corporate clients worldwide.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 67 contacts → | ||||
Partial evidence “ATS Global Techsoft Pvt Ltd is a Software Solutions Company based in Bangalore the Silicon Valley of India.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 63 contacts → | ||||
Partial evidence “SRIKESHINFOTECH is an IT services company based in Puducherry.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 57 contacts → | ||||
Strong evidence “Unotech Software is a trusted advisor and end-to-end partner for organisations looking to deploy IAM (Identity Access Management) and ITSM (IT Service Management) solutions.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Indirect evidence “Salto reimagines the way enterprise systems are configured and managed.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 40 contacts → | ||||
Strong evidence “Samyutha Info Technologies is a Hyderabad-based IT Services, Solutions, and Consulting company specializing in Open Source technologies.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 39 contacts → | ||||
Strong evidence “AsadelTEK integrates open source software into SaaS for more optimal, economical, and efficient business needs.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 38 contacts → | ||||
Strong evidence “Alemba Service Manager (ASM) is ITSM and enterprise service management software built for complex, regulated organizations, where visibility, governance, and operational…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Strong evidence “Lyra Infosystems is a trusted leader in enterprise open source solutions, dedicated to empowering businesses worldwide to thrive in today's dynamic digital landscape.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 33 contacts → | ||||
Partial evidence “Terbium Technologies staff ensure that all of the solutions for our customers will be right on target, no matter how complex a project may be – ranging from consulting, software…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Strong evidence “Vishwayon Software Private Limited is an OpenSource global IT Services company that provides customized business solutions, using the state of the art development tools available…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 26 contacts → | ||||
Strong evidence “As an Open Source Specialist Solution provider, Silicon attunes your business to the changing technological scenarios; thereby making you outrace the competition.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Strong evidence “STARTX is an IT company specialized on open source solutions : infrastructure, cloud and mobility technologies.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Indirect evidence “Digital technologies have transformed the competitive landscape for businesses of all shapes and sizes.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Strong evidence “Founded in sunny San Diego, CA in 2011, Cireson has always pursued a single, powerful mission: to be the leading innovator in Microsoft IT Service Management.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 19 contacts → | ||||
Partial evidence “eStomi Technologies is a major ITSM and BSM products and consulting firm based out of Bangalore, India Pronounced as "ee-Sto-my", it was incorporated in the year 2010 with a zest…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Strong evidence “Tecgemini has been in the field of IT services and business development since 2003 and established as a PVT Ltd software solution providers in FOSS since 26 th November 2008.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 contacts → | ||||
Strong evidence “atReal is a Free Software company focused on companies and public bodies open-source softwares.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 contacts → | ||||
Strong evidence “Welcome to OSMO Welcome to OSMO, the only IT consulting company in Central India providing fully FOSS (free and open source software) solutions!” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Partial evidence “FOSS INFOTECH PRIVATE LIMITED is an IT Services Company which is based in Coimbatore and established in the year 2013.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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: open source IT service management software 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 open source IT service management software companies.
- Partial evidence
- Its own public description names part of open source IT service management software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name open source IT service management software 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 144 open source IT service management software companies worldwide
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Open source IT service management software companies worldwide at a glance
As of Sep 5, 2026Companies by employee count
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 open source IT service management software 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
- 3 countries, largest first: India, France, the United States. Country and city lists for open source IT service management software companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “open source IT service management software 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 open source IT service management software 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 open source IT service management software 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, 396 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 between September 5, 2026 and September 14, 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.
Open source IT service management software companies by location
3 lists · largest firstEvery Open source IT service management software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 open source IT service management software 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 open source IT service management software companies are there worldwide?
RevenueBase identified 144 open source IT service management software 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?
Compuware, headquartered in Detroit, tops this list with the largest team on record.
Which country has the most open source IT service management software companies?
India leads with 52 companies, followed by France (51) and the United States (41). Every open source IT service management software companies list by country and city is linked on this page.
Which city has the most open source IT service management software companies?
Paris leads with 10 headquartered companies, followed by Hyderabad (6) and Mumbai (6).
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 396 verified decision-maker contacts tracked across these 144 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and September 14, 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.