Company lists · Data refreshed September 2026

Top 25 Sales tax and vat compliance software companies worldwide

RevenueBase identified 232 sales tax and vat compliance software companies worldwide as of September 2026 and tracks 7,528 professional contacts across them, including 3,838 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers sales tax and vat compliance 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 14, 2026. Country and city lists for sales tax and vat compliance 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
232Companies
7,528Contacts tracked
3,838Verified emails
0Mobile numbers
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The 25 largest sales tax and vat compliance software companies worldwide

Ranked by team size
Top 25 of 232 sales tax and vat compliance software companies worldwide, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to sales tax and vat compliance 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
1Strong evidenceKing Of Prussia, PA, United StatesHQ checked Sep 14, 20261,001-5,0002,068 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceLondon, United KingdomHQ checked Sep 14, 2026501-1,000909 contacts →

Strong evidence

“We’re proud to be the global leader in VAT solutions, a single partner for reclaim, compliance, and e-invoicing.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceLong Island City, NY, United StatesHQ checked Sep 14, 2026201-500302 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceSão Paulo, BrazilHQ checked Sep 14, 202651-200189 contacts →

Partial evidence

“Systax: The Evolution of Tax Intelligence.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceZagreb, CroatiaHQ checked Sep 14, 202651-200173 contacts →

Partial evidence

“Fonoa is the Tax Operating System for autonomous tax.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceRosenheim, GermanyHQ checked Sep 14, 2026201-500152 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceStaines-Upon-Thames Middlesex, United KingdomHQ checked Sep 14, 202651-200138 contacts →

Indirect evidence

“We are game changers.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceSan Francisco, United StatesHQ checked Sep 14, 202651-200137 contacts →

Partial evidence

“Anrok is the intelligent tax infrastructure for global businesses.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceHamburg, GermanyHQ checked Sep 14, 202651-200120 contacts →

Indirect evidence

“Taxdoo is a fast and sustainably growing company based in Hamburg, Germany.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceRibeirão Preto, BrazilHQ checked Sep 14, 202651-200118 contacts →

Indirect evidence

“Empresa brasileira de solução fiscal que busca facilidade, qualidade e especialidade em suas soluções.”

Source: RevenueBase Database · checked Sep 14, 2026
11Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-200108 contacts →

Strong evidence

“Sales tax and VAT, solved.”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceSan Francisco, United StatesHQ checked Sep 14, 202651-200105 contacts →

Strong evidence

“Kintsugi is automating sales tax for every company globally.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceSao Paulo, BrazilHQ checked Sep 14, 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 14, 2026
14Indirect evidenceSão Paulo, BrazilHQ checked Sep 14, 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 14, 2026
15Partial evidenceDallas, TX, United StatesHQ checked Sep 14, 202651-20079 contacts →

Partial evidence

“Tax.com™ solutions are powered by the insights and ingenuity of some of the most renowned business tax professionals at Ryan whose experience and expertise form the bedrock on…”

Source: RevenueBase Database · checked Sep 14, 2026
16Strong evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5074 contacts →

Strong evidence

“Zamp provides real sales tax relief, not just software-we completely handle your sales tax compliance so you don't have to.”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceMumbai, IndiaHQ checked Sep 14, 202651-20073 contacts →

Partial evidence

“TMSL is a modern-day Tax Technology firm that provides tax services- technologically.”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 14, 202611-5072 contacts →

Partial evidence

“TaxConnex® is your UPSOURCED compliance solution.”

Source: RevenueBase Database · checked Sep 14, 2026
19Strong evidenceHove, United KingdomHQ checked Sep 14, 202651-20071 contacts →

Strong evidence

“Our Mission is to help companies build international, successful and sustainable businesses without the worry of VAT compliance.”

Source: RevenueBase Database · checked Sep 14, 2026
20Strong evidenceAustin, TX, United StatesHQ checked Sep 14, 202651-20069 contacts →

Strong evidence

“TaxCloud is a sales tax compliance solution for growing ecommerce and SaaS businesses that combines powerful automation with real human support.”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceBerlin, GermanyHQ checked Sep 14, 2026201-50063 contacts →

Partial evidence

“eClear specialises in automating VAT and customs processes for borderfree commerce within and into Europe.”

Source: RevenueBase Database · checked Sep 14, 2026
22Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 202651-20061 contacts →

Strong evidence

“Navigating the labyrinth of sales tax is more than just an annoyance for e-commerce, SaaS, and other online sellers.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 14, 202611-5058 contacts →

Partial evidence

“CereTax is the first tax automation solution built to take advantage of the countless technological advancements over the last decade and engineered in a way that truly transforms…”

Source: RevenueBase Database · checked Sep 14, 2026
24Strong evidenceAppleton, WI, United StatesHQ checked Sep 14, 202611-5058 contacts →

Strong evidence

“IGEN delivers the most comprehensive tax compliance platform for managing complex, multi-jurisdictional indirect tax obligations, purpose-built for the full compliance lifecycle.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidencePune, IndiaHQ checked Sep 14, 202651-20055 contacts →

Partial evidence

“At Optitax’s, we empower individuals and businesses to navigate the complexities of tax regulations with confidence.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 232 sales tax and vat compliance software companies worldwide

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Sales tax and vat compliance software companies worldwide at a glance

As of Sep 14, 2026
51.0%Verified-email coverage
32.4Average contacts per company
11-50Median size (employees)
6.5%Largest-city concentration · London
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
93
11-50
82
51-200
43
201-500
8
501-1,000
2
1,001-5,000
3
10001+
1

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 sales tax and vat compliance 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
5 countries, largest first: the United States, the United Kingdom, India, Brazil, Germany. Country and city lists for sales tax and vat compliance software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “sales tax and vat compliance 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 sales tax and vat compliance 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 sales tax and vat compliance 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, 3,838 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 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.

Sales tax and vat compliance software companies by location

5 lists · largest first

Every Sales tax and vat compliance 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 sales tax and vat compliance 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 sales tax and vat compliance software companies are there worldwide?

RevenueBase identified 232 sales tax and vat compliance 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?

Vertex INC, headquartered in King Of Prussia, tops this list with the largest team on record.

Which country has the most sales tax and vat compliance software companies?

The United States leads with 79 companies, followed by the United Kingdom (48) and India (45). Every sales tax and vat compliance software companies list by country and city is linked on this page.

Which city has the most sales tax and vat compliance software companies?

London leads with 15 headquartered companies, followed by Sao Paulo (14) and Berlin (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 3,838 verified decision-maker contacts tracked across these 232 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 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.