Company lists · Data refreshed September 2026

Top 25 Tax automation software companies based in Brazil

RevenueBase identified 109 tax automation software companies headquartered in Brazil as of September 2026 and tracks 3,429 professional contacts across them, including 943 with verified work emails and 60 with mobile numbers. Sao Paulo is the largest hub.

This list covers tax automation 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
109Companies
3,429Contacts tracked
943Verified emails
60Mobile numbers
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The 25 largest tax automation software companies based in Brazil

Ranked by team size
Top 25 of 109 tax automation 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 automation 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 →

Partial evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
2Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 6, 2026201-500319 contacts →

Indirect evidence

“A v360 é líder em soluções de otimização fiscal para as principais empresas do Brasil.”

Source: RevenueBase Database · checked Sep 6, 2026
3Partial evidenceSao Paulo, BrazilHQ checked Sep 6, 2026201-500298 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
4Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202651-200191 contacts →

Indirect evidence

“A Reforma Tributária já começou.”

Source: RevenueBase Database · checked Sep 6, 2026
5Partial evidenceSão Paulo, BrazilHQ checked Sep 6, 202651-200189 contacts →

Partial evidence

“Systax: The Evolution of Tax Intelligence.”

Source: RevenueBase Database · checked Sep 6, 2026
6Indirect evidenceJuiz De Fora, BrazilHQ checked Sep 6, 202651-200187 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
7Indirect evidenceBarueri, BrazilHQ checked Sep 6, 202651-200129 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
8Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 202651-200104 contacts →

Indirect evidence

“A Jettax é o único ecossistema completo de automação fiscal, pensado para escritórios contábeis e empresas que buscam mais eficiência.”

Source: RevenueBase Database · checked Sep 6, 2026
9Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 2026501-1,000103 contacts →

Indirect evidence

“Siga a página oficial do Grupo IOB:”

Source: RevenueBase Database · checked Sep 6, 2026
10Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202651-20095 contacts →

Indirect evidence

“A Avalara ajuda empresas de todos os tamanhos a ficarem em dia com seus impostos e obrigações fiscais exigidos pelo Fisco nos níveis Federal, Estadual e Municipal.”

Source: RevenueBase Database · checked Sep 6, 2026
11Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 2026201-50089 contacts →

Indirect evidence

“Dattos devises solutions for those who don't have time to waste.”

Source: RevenueBase Database · checked Sep 6, 2026
12Indirect evidenceSão Bernardo Do Campo, BrazilHQ checked Sep 6, 202651-20088 contacts →

Indirect evidence

“Em um dos sistemas tributários mais burocráticos do mundo, existimos para descomplicar as rotinas fiscais com tecnologia.”

Source: RevenueBase Database · checked Sep 6, 2026
13Indirect evidenceSão Caetano Do Sul, BrazilHQ checked Sep 6, 202611-5046 contacts →

Indirect evidence

“Uma TaxTech que auxilia empresas e contabilidade a realizar uma melhor gestão de notas fiscais de serviços contratados, tudo isso com automação e inteligência fiscal e tributária…”

Source: RevenueBase Database · checked Sep 6, 2026
14Partial evidenceSao Paulo, BrazilHQ checked Sep 6, 202611-5046 contacts →

Partial evidence

“A Auditto é uma empresa especialista na oferta de soluções completas de software.”

Source: RevenueBase Database · checked Sep 6, 2026
15Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202611-5043 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026
16Indirect evidenceMarília, BrazilHQ checked Sep 6, 202651-20037 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 6, 2026
17Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 202611-5034 contacts →

Indirect evidence

“A MasterTax surgiu para simplificar a relação entre os contribuintes e o Fisco, permitindo que as empresas deixem os riscos, incertezas e pagamentos indevidos para trás.”

Source: RevenueBase Database · checked Sep 6, 2026
18Indirect evidenceJi-paraná, BrazilHQ checked Sep 6, 2026n/a31 contacts →

Indirect evidence

“Automação de processos fiscais e tributários.”

Source: RevenueBase Database · checked Sep 6, 2026
19Indirect evidenceSao Paulo, BrazilHQ checked Sep 6, 202611-5024 contacts →

Indirect evidence

“Ferramenta para o contador analisar as declarações de IRPF dos seus clientes de forma inteligente, rápida e segura.”

Source: RevenueBase Database · checked Sep 6, 2026
20Indirect evidenceMacapá, BrazilHQ checked Sep 6, 202611-5023 contacts →

Indirect evidence

“O Brasil possui um dos sistemas tributários mais complexos do mundo, em que uma empresa gasta em média 1500 horas para lidar com impostos, e o ICMS é o imposto mais complicado.”

Source: RevenueBase Database · checked Sep 6, 2026
21Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202611-5021 contacts →

Indirect evidence

“Os caminhos da legislação tributária são complexos, e muitas empresas enfrentam desafios ao longo dessa jornada.”

Source: RevenueBase Database · checked Sep 6, 2026
22Partial evidenceSão Bernardo Do Campo, BrazilHQ checked Sep 6, 202611-5017 contacts →

Partial evidence

“We provide the easiest, faster, confortable and assertive solutions for Tax and Accouting obligations.”

Source: RevenueBase Database · checked Sep 6, 2026
23Partial evidenceJi-paraná, BrazilHQ checked Sep 6, 202611-5015 contacts →

Partial evidence

“O Eficiência Fiscal é um software na nuvem, exclusivo em sua proposta de inovação, repleto de funcionalidades e recursos de inteligência artificial, para auxiliar Empresas e…”

Source: RevenueBase Database · checked Sep 6, 2026
24Indirect evidenceSão Paulo, BrazilHQ checked Sep 6, 202611-5014 contacts →

Indirect evidence

“Certamente, a gestão manual dos processos administrativos, especialmente aqueles relacionados à compensação de tributos federais, pode ser um desafio significativo para as…”

Source: RevenueBase Database · checked Sep 6, 2026
25Indirect evidenceNovo Hamburgo, BrazilHQ checked Sep 6, 202611-5011 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 6, 2026

Showing 25 of 109 tax automation software companies based in Brazil

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Tax automation software companies based in Brazil at a glance

As of Sep 6, 2026
27.5%Verified-email coverage
1.7%Mobile-number coverage
31.5Average contacts per company
11-50Median size (employees)
33.9%Largest-city concentration · Sao Paulo
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
48
51-200
14
201-500
5
501-1,000
1
1,001-5,000
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 automation 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 automation 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 automation 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 automation 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, 943 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.

Tax automation software companies by metro

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 automation 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 automation software companies are there based in Brazil?

RevenueBase identified 109 tax automation 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 automation software companies?

Sao Paulo leads with 37 headquartered companies, followed by Porto Alegre (5) and Rio De Janeiro (5).

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 943 verified decision-maker contacts tracked across these 109 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.