Company lists · Data refreshed September 2026

Top 21 Tax resolution software companies based in Brazil

RevenueBase identified 69 tax resolution software companies headquartered in Brazil as of September 2026 and tracks 2,441 professional contacts across them, including 658 with verified work emails and 46 with mobile numbers. Sao Paulo is the largest hub.

This list covers tax resolution software companies headquartered in Brazil, 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 6, 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 6, 2026 86% judged on-target in blind review
69Companies
2,441Contacts tracked
658Verified emails
46Mobile numbers
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The 21 largest tax resolution software companies based in Brazil

Ranked by team size
Top 21 of 69 tax resolution software companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tax resolution software 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSao Paulo, BrazilHQ checked Sep 6, 2026201-500536 contacts →

“Fundada em 1987, a CONTMATIC PHOENIX é uma Empresa em grande expansão nacional especializada no desenvolvimento de Softwares Administrativos, oferecendo soluções necessárias e…”

Source: company website · checked Sep 6, 2026
2Partial evidenceSao Paulo, BrazilHQ checked Sep 6, 2026201-500298 contacts →

“Desde 1986 a Prosoft desenvolve softwares para apoiar empresários contábeis a aconselhar seus clientes com rapidez, precisão e eficiência.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202651-200191 contacts →

“A Reforma Tributária já começou.”

Source: company website · checked Sep 6, 2026
4Partial evidenceSão Paulo, BrazilHQ checked Sep 6, 202651-200189 contacts →

“Systax: The Evolution of Tax Intelligence.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceJuiz De Fora, BrazilHQ checked Sep 6, 202651-200187 contacts →

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

Source: company website · checked Sep 6, 2026
6Indirect evidenceBarueri, BrazilHQ checked Sep 6, 202651-200129 contacts →

“Bem-vindo à primeira #TaxTech da América Latina!”

Source: company website · checked Sep 6, 2026
7Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 2026501-1,000103 contacts →

“Siga a página oficial do Grupo IOB:”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202651-20054 contacts →

“Somos um escritório full service na área tributária, com especialização e experiência para oferecer soluções completas a empresas dos mais diversos ramos e setores da economia.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 202611-5054 contacts →

“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…”

Source: company website · checked Sep 6, 2026
10Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202611-5043 contacts →

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

Source: company website · checked Sep 6, 2026
11Indirect evidenceMarília, BrazilHQ checked Sep 6, 202651-20037 contacts →
Source: company website · checked Sep 6, 2026
12Indirect evidenceSorocaba, BrazilHQ checked Sep 6, 202611-5033 contacts →

“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…”

Source: company website · checked Sep 6, 2026
13Partial evidenceGoiânia, BrazilHQ checked Sep 6, 202651-20028 contacts →

“Empresa de desenvolvimento de software, em especial de soluções para gestão e compartilhamento de documentos fiscais eletrônicos na cadeia de suprimentos.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 202611-5019 contacts →

“Nascemos do sucesso de importantes projetos fiscais do cenário nacional, com destaque para nossa equipe multidisciplinar de especialistas em soluções e serviços com participação…”

Source: company website · checked Sep 6, 2026
15Indirect evidenceCampinas, BrazilHQ checked Sep 6, 202611-5015 contacts →

“Nosso propósito é desenvolver tecnologias inovadoras para recuperação de tributos e outras oportunidades tributárias, de forma fácil e descomplicada para nossos clientes.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceJaraguá Do Sul, BrazilHQ checked Sep 6, 202611-5014 contacts →

“A FiscALL Corporate protagoniza papel de destaque em matéria de Inteligência Tributária e Contábil.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceNovo Hamburgo, BrazilHQ checked Sep 6, 202611-5011 contacts →

“Somos uma empresa de tecnologia focada na área fiscal e contábil.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceFlorianópolis, BrazilHQ checked Sep 6, 20261-1011 contacts →

“Empresa jovem fundada por profissionais com mais de 10 anos de experiência no mercado Tributário, a KomBusiness oferece soluções na área tributária a fim de reduzir custos e…”

Source: company website · checked Sep 6, 2026
19Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 20261-108 contacts →

“A Haddad Neto Smart é uma empresa de consultoria tributária e tecnologia sediada em São Paulo.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 20261-104 contacts →

“Referência em desenvolvimento tecnológico inovador, com especialização na área tributária Nossa empresa é reconhecida como referência em desenvolvimento tecnológico inovador, com…”

Source: company website · checked Sep 6, 2026
21Partial evidenceSão Paulo, BrazilHQ checked Sep 6, 20261-101 contacts →

“Soluções Tecnológicas Inovadoras para TAX

Source: company website · checked Sep 6, 2026

Showing 21 of 69 tax resolution software companies based in Brazil

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Tax resolution software companies based in Brazil at a glance

As of Sep 6, 2026
27.0%Verified-email coverage
1.9%Mobile-number coverage
35.4Average contacts per company
11-50Median size (employees)
31.9%Largest-city concentration · Sao Paulo
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
31
51-200
12
201-500
3
501-1,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 tax resolution 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.
What qualifies
Companies headquartered in Brazil whose own description of what they do matches “tax resolution 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 tax resolution 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 tax resolution software companies, and records with no verified work email. Companies headquartered outside Brazil 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, 658 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 6, 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.

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 tax resolution 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 tax resolution software companies are there based in Brazil?

RevenueBase identified 69 tax resolution software companies headquartered in Brazil 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?

Contmatic Phoenix, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most tax resolution software companies?

Sao Paulo leads with 22 headquartered companies, followed by Porto Alegre (4) and Barueri (3).

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 658 verified decision-maker contacts tracked across these 69 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 6, 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.