Company lists · Data refreshed September 2026
Top 25 Professional software companies worldwide
RevenueBase identified 829 professional software companies worldwide as of September 2026 and tracks 19,573 professional contacts across them, including 4,066 with verified work emails. India is the largest market and Tehran the largest hub.
This list covers professional 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 21, 2026. Country and city lists for professional 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 professional software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,288 contacts → | ||||
Indirect evidence “Siigo S.A.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,109 contacts → | ||||
Partial evidence “Contour Software is a wholly owned subsidiary of Constellation Software CSI acquires, manages, and builds market-leading vertical market software (“VMS”) businesses that develop…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,857 contacts → | ||||
Partial evidence “At EG, we build software that helps industries run smarter and societies work better.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 504 contacts → | ||||
Partial evidence “Causeway is the only global software provider that powers the design, build, operation and maintenance of the built environment.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 424 contacts → | ||||
Partial evidence “Constellation Software is an international provider of market leading software and services to a select number of industries, both in the public and private sectors.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 413 contacts → | ||||
Indirect evidence “Once aeronautics, industry and automotive were neither an industry nor a science.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 408 contacts → | ||||
Partial evidence “Total Specific Solutions is an international Vertical Market Software group.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 361 contacts → | ||||
Partial evidence “ESKADENIA Software is committed to continuously enrich its product offerings and create advanced software products according to market demands.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 283 contacts → | ||||
Strong evidence “Dylog progetta, sviluppa e commercializza software gestionali e servizi per imprese e professionisti: il nostro motto è “il successo della tua impresa è nei nostri programmi”.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 216 contacts → | ||||
Partial evidence “When it matters, companies turn to Maya HTT As the author of industry leading engineering software solutions, we help companies tackle today’s most difficult problems.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 179 contacts → | ||||
Partial evidence “No mercado desde 1991, a SG SISTEMAS é marca registrada da SG Sistemas de Automação Ltda, e tem como principais objetivos produzir e comercializar softwares para Automação…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 172 contacts → | ||||
Indirect evidence “CYPE’s journey began in 1983 with an intense activity in the field of engineering and structural analysis, which motivated the computer development of applications to cover its…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 169 contacts → | ||||
Partial evidence “Mensch und Maschine Software SE (M+M) is a leading developer of Computer Aided Design, Manufacturing and Engineering (CAD/CAM/CAE), Product Data/Lifecycle Management (PDM/PLM) and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 158 contacts → | ||||
Indirect evidence “Secteur : High Tech - Editeurs logiciels ACA éditeur de solutions SaaS depuis 30 ans, apporte à ses clients une réponse complète pour la refonte de leur système d’information.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 149 contacts → | ||||
Indirect evidence “For more info, refer Cumulus Systems Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 107 contacts → | ||||
Strong evidence “Founded in 1984, Hagerman & Company provides software and professional services for companies in the AEC, Manufacturing and related industries.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 100 contacts → | ||||
Partial evidence “SSA Group is a software development company focusing on three major business activities, namely development of own software products, delivering a number of integrated software…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 99 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 95 contacts → | ||||
Indirect evidence “StruSoft makes life easy for building, structural design, and architectural engineers who work with analysis and design of buildings, structural engineering, 3D modelling…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 91 contacts → | ||||
Indirect evidence “A ANO - Sistemas de Informática e Serviços, Lda.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 88 contacts → | ||||
Indirect evidence “Link Soluciones es una empresa especializada en el desarrollo, distribución y mantenimiento de soluciones para la actividad profesional de Asesorías, Departamentos de RRHH y Pymes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 78 contacts → | ||||
Indirect evidence “The mission of the ISD Group is to support customers as a strong partner, to implement engineering processes in an optimal way and thus to make companies more successful.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 70 contacts → | ||||
Partial evidence “Acuity Software Technologies are Software Development Company focused on quality and timely delivery of Standard Business Applications, Vertical Market and Bespoke customized…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 67 contacts → | ||||
Partial evidence “Com 25 anos de experiência no mercado, a 90t.i é uma empresa especializada no desenvolvimento de softwares para a área de engenharia com reconhecimento nacional, atuando nos…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 67 contacts → | ||||
Partial evidence “Software is one of the significant elements in establishing a technically enhanced life.” Source: RevenueBase Database · checked Sep 21, 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: professional 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 professional software companies.
- Partial evidence
- Its own public description names part of professional software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional 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 829 professional software companies worldwide
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Professional software companies worldwide at a glance
As of Sep 21, 2026Companies by employee count
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 professional 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
- Every country. Country and city lists for professional software companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “professional 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 professional 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 professional 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, 4,066 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 21, 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.
Professional software companies by location
7 lists · largest firstEvery Professional software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Professional software companies based in India71
- Professional software companies based in the United States65
- Professional software companies based in Italy57
- Professional software companies based in Brazil47
- Professional software companies based in France34
- Professional software companies based in Germany27
- Professional software companies based in Türkiye25
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 professional 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 professional software companies are there worldwide?
RevenueBase identified 829 professional 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?
SIIGO, headquartered in Bogota D.C., tops this list with the largest team on record.
Which country has the most professional software companies?
India leads with 71 companies, followed by the United States (65) and Italy (57). Every professional software companies list by country and city is linked on this page.
Which city has the most professional software companies?
Tehran leads with 21 headquartered companies, followed by Pune (11) and London (7).
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 4,066 verified decision-maker contacts tracked across these 829 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 21, 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.