Company lists · Data refreshed October 2026

Top 25 International tax comparison software companies worldwide

RevenueBase identified 188 company matches for international tax comparison software companies worldwide as of October 2026 and tracks 13,011 professional contacts across them, including 6,899 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for international tax comparison software companies worldwide, 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 October 20, 2026. Country and city lists for international tax comparison software companies follow the table.

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 Oct 20, 2026 How this list was built
188Companies
13,011Contacts tracked
6,899Verified emails
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The 25 largest international tax comparison software companies worldwide

Ranked by team size
Top 25 of 188 company matches for international tax comparison software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 20, 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 matchDallas, TX, United StatesHQ recorded Oct 20, 20265,001-10,0006,427 contacts →

Exact match

“Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
2Exact matchKing Of Prussia, PA, United StatesHQ recorded Oct 20, 20261,001-5,0002,059 contacts →

Exact match

“Vertex is the Decision-to-Defense™ global indirect tax and compliance company.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
3Exact matchLong Island City, NY, United StatesHQ recorded Oct 20, 2026201-500300 contacts →

Exact match

“TTI’s flagship product, Tax Series, is an all-inclusive SaaS solution that can handle all aspects of U.S.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
4Exact matchSantiago, ChileHQ recorded Oct 20, 2026201-500293 contacts →

Exact match

“La tecnología ha transformado a las empresas y ha cambiado para siempre la forma en que los gobiernos regulan.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
5Exact matchIstanbul, TürkiyeHQ recorded Oct 20, 202651-200257 contacts →

Exact match

“SNI is a Computer Technology Corporation providing Tax Compliance and Regulatory Reporting softwares, interfaces and technologies around the world.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
6Exact matchSão Paulo, BrazilHQ recorded Oct 20, 202651-200242 contacts →

Exact match

“A Reforma Tributária já começou.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
7Exact matchMiami, FL, United StatesHQ recorded Oct 20, 2026201-500190 contacts →

Exact match

“We are the #1 ERP & Tax Compliance experts supporting the whole Latin American and Caribbean region.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
8Exact matchSão Paulo, BrazilHQ recorded Oct 20, 202651-200189 contacts →

Exact match

“Systax: The Evolution of Tax Intelligence.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
9Exact matchJuiz De Fora, BrazilHQ recorded Oct 20, 202651-200186 contacts →

Exact match

“Desde 2009, oferecemos soluções inteligentes que aprimoram a rotina de trabalho de profissionais contábeis e tributários, auxiliando na identificação de inconsistências e…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
10Exact matchRosenheim, GermanyHQ recorded Oct 20, 2026201-500157 contacts →

Exact match

“Agenda ist einer der führenden Software-Anbieter für die steuer- und wirtschaftsberatenden Berufe.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
11Exact matchStaines-Upon-Thames Middlesex, United KingdomHQ recorded Oct 20, 202651-200105 contacts →

Exact match

“We are game changers.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
12Exact matchHelsinki, FinlandHQ recorded Oct 20, 202651-20098 contacts →

Exact match

“Aibidia, founded in 2018, provides the technology that enables multinational enterprises to make more considered transfer pricing decisions.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
13Exact matchDhaka, BangladeshHQ recorded Oct 20, 202651-20081 contacts →

Exact match

“Simplifying International tax tasks with market-leading technology.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
14Exact matchDaerah Khusus Ibukota Jakarta, IndonesiaHQ recorded Oct 20, 202651-20074 contacts →

Exact match

“Established in 2007, Ortax has recently become one of the largest taxation platforms in Indonesia with a comprehensive range of services related to provision of tax information…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
15Exact matchAmsterdam, NetherlandsHQ recorded Oct 20, 202651-20068 contacts →

Exact match

“Iedereen heeft recht op een optimale fiscale aangifte.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
16Exact matchHoevelaken, NetherlandsHQ recorded Oct 20, 202651-20064 contacts →

Exact match

“Sluit je aan bij Wolters Kluwer en maak deel uit van een dynamisch mondiaal technologiebedrijf dat elke dag een verschil maakt.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
17Exact matchSao Paulo, BrazilHQ recorded Oct 20, 202611-5058 contacts →

Exact match

“Nós da REVIO, somos motivados em desenvolver tecnologia e prover gestão de dados e informações, para contribuir com as empresas no direcionamento do recolhimento correto de…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Oct 20, 202611-5051 contacts →

Exact match

“Commenda consolidates the entire international operations stack into a single platform: • Entity Management & Incorporation • Corporate Tax and Financial Reporting • Global…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
19Exact matchBognor Regis, United KingdomHQ recorded Oct 20, 202611-5041 contacts →

Exact match

“Innovate Tax bridges the gap between ERPs and Tax technology, translating complex tax rules into user-friendly and fully automated tax solutions.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
20Exact matchSão Paulo, BrazilHQ recorded Oct 20, 202611-5041 contacts →

Exact match

“Somos empresa de tecnologia especializada em criar soluções para profissionais da área tributária.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
21Exact matchJohannesburg, South AfricaHQ recorded Oct 20, 202611-5040 contacts →

Exact match

“Konsise is a South African entity management and tax compliance software platform that helps corporate companies, accounting firms, tax practitioners, and corporate service and…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
22Exact matchRaubling, GermanyHQ recorded Oct 20, 202611-5040 contacts →

Exact match

“At RAQUEST we believe that reclaiming overpaid withholding taxes should be made as simple as possible.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
23Exact matchSorocaba, BrazilHQ recorded Oct 20, 202611-5038 contacts →

Exact match

“A S2M Solutions To Middle, fundada em 1998, atua no Mercado de tecnologia da informação e destaca-se pela alta performance na prestação de serviços e desenvolvimento de soluções…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
24Exact matchTakapuna, New ZealandHQ recorded Oct 20, 202651-20034 contacts →

Exact match

“Wolters Kluwer fuels global commerce by enabling professionals in tax and accounting firms, governing authorities, and businesses of all sizes, to grow, manage, and protect their…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
25Exact matchAachen, GermanyHQ recorded Oct 20, 202611-5032 contacts →

Exact match

“Taxy.io, Intelligent Automation in Tax & Legal Advice: Taxy.io was founded in 2018 as a spin-off of RWTH Aachen University and develops innovative software that enables tax…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase

Showing 25 of 188 international tax comparison software companies worldwide

See the full list, filter by size, metro and specialty, and access 6,899 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax comparison software companies worldwide at a glance

As of Oct 20, 2026
53.0%Verified-email coverage
69.2Average contacts per company
11-50Median size (employees)
7.4%Largest-city concentration · Sao Paulo
Oct 20, 2026Page data refreshed

Companies by employee count

1-10
83
11-50
69
51-200
23
201-500
7
501-1,000
2
1,001-5,000
1
5,001-10,000
1
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for international tax comparison software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “international tax comparison software companies” 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. 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 6,899 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 October 20, 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.

International tax comparison software companies by location

2 lists · largest first

Every International tax comparison 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 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 “international tax comparison software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax comparison software companies are there worldwide?

RevenueBase identified 188 company matches for international tax comparison software companies worldwide as of October 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?

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

Which country has the most international tax comparison software companies?

The United States leads with 42 companies, followed by Brazil (41). Every international tax comparison software companies list by country and city is linked on this page.

Which city has the most international tax comparison software companies?

Sao Paulo leads with 14 company records, followed by London (5) and Porto Alegre (3).

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 6,899 professional contacts with verified work emails tracked across these 188 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 October 20, 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.