Company lists · Data refreshed November 2026

Top 25 Tax resolution software companies worldwide

RevenueBase identified 842 company matches for tax resolution software companies worldwide as of November 2026 and tracks 10,595 professional contacts across them, including 3,776 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for tax resolution 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 November 5, 2026. Country and city lists for tax resolution 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 Nov 5, 2026 How this list was built
842Companies
10,595Contacts tracked
3,776Verified emails
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The 25 largest tax resolution software companies worldwide

Ranked by team size
Top 25 of 842 company matches for tax resolution software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchNew York, NY, United StatesHQ recorded Nov 5, 20261,001-5,0001,665 contacts →

Exact match

“Wolters Kluwer Tax & Accounting U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchFranklin, United StatesHQ recorded Nov 5, 2026501-1,000579 contacts →

Exact match

“Drake Software, a private company founded in 1977, provides software solutions to over tax and accounting firms that file more than 40 million tax returns every year.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSanta Ana, CA, United StatesHQ recorded Nov 5, 2026501-1,000441 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202651-200259 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 · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSão Paulo, BrazilHQ recorded Nov 5, 202651-200248 contacts →

Exact match

“A Reforma Tributária já começou.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchIrvine, United StatesHQ recorded Nov 5, 2026201-500234 contacts →

Exact match

“At TaxRise, we transform lives by helping individuals and families overcome their tax challenges and achieve financial freedom.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchAhmedabad, IndiaHQ recorded Nov 5, 2026201-500208 contacts →

Exact match

“Inventyv Software Services Pvt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, FL, United StatesHQ recorded Nov 5, 202651-200206 contacts →

Exact match

“Instead is where tax work gets done.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchUnited StatesHQ recorded Nov 5, 202610001+184 contacts →

Exact match

“Wolters Kluwer, TAA North America US Small Firms is part of Wolters Kluwer Tax & Accounting.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchJacksonville, FL, United StatesHQ recorded Nov 5, 2026201-500176 contacts →

Exact match

“Since 2010, Community Tax has helped individuals and businesses across the United States navigate complex tax matters with clarity and confidence.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchRosenheim, GermanyHQ recorded Nov 5, 2026201-500165 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchIrvine, CA, United StatesHQ recorded Nov 5, 2026201-500145 contacts →

Exact match

“We care about people.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchJacksonville, FL, United StatesHQ recorded Nov 5, 2026201-500144 contacts →

Exact match

“Since 2007, Tax Defense Network's team of licensed tax professionals has helped hundreds of thousands of taxpayers and small business owners resolve their IRS issues, including…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchToronto, ON, CanadaHQ recorded Nov 5, 2026201-500140 contacts →

Exact match

“Wolters Kluwer Tax & Accounting Canada is a leading provider of expert solutions for tax, accounting, and audit professionals, offering industry-leading resources that utilize…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchLathrop, CA, United StatesHQ recorded Nov 5, 202651-200138 contacts →

Exact match

“CrossLink Professional Tax Solutions (CPTS) is a leading provider of professional tax software solutions for professional tax preparers across the United States.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchBroomfield, CO, United StatesHQ recorded Nov 5, 202651-200138 contacts →

Exact match

“Your tax debt resolution partner.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchLos Angeles, CA, United StatesHQ recorded Nov 5, 202651-200127 contacts →

Exact match

“Anthem Tax Services (ATS) is one of the highest rated Tax Resolution Companies in the U.S, comprised of professionals who are passionate about representing taxpayers and fighting…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSao Paulo, BrazilHQ recorded Nov 5, 2026501-1,000117 contacts →

Exact match

“Siga a página oficial do Grupo IOB:”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchWinston Salem, NC, United StatesHQ recorded Nov 5, 202651-200112 contacts →

Exact match

“Protection Plus provides top-tier tax resolution services, offering up to in services to resolve IRS notices, inquiries, and audits.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchCollege Station, TX, United StatesHQ recorded Nov 5, 202611-50109 contacts →

Exact match

“Holistiplan, a tax planning software solution, helps financial planners be more comprehensive AND more efficient.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchRound Rock, TX, United StatesHQ recorded Nov 5, 202651-20098 contacts →

Exact match

“MVBA is an established leader in providing professional, effective delinquent tax and non-tax related collection programs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBroomfield, CO, United StatesHQ recorded Nov 5, 202651-20098 contacts →

Exact match

“Over the past 28 years, 20/20 Tax Resolution has helped over businesses and individuals reach successful resolutions with their IRS and state tax liabilities.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSpokane, WA, United StatesHQ recorded Nov 5, 2026201-50090 contacts →

Exact match

“Protecting Finances Leading Tax Debt Relief Experts | IRS & State Resolution Specialists Settle Tax Debt & Regain Stability We help individuals and businesses navigate complex tax…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchNorman, KS, United StatesHQ recorded Nov 5, 202651-20080 contacts →

Exact match

“We are one of the largest tax resolution law firms in the nation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchDelray Beach, FL, United StatesHQ recorded Nov 5, 202611-5079 contacts →

Exact match

“Sigma Tax Pro serves professional Tax Preparers, Accountants, and CPAs with industry-leading software solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 842 tax resolution software companies worldwide

See the full list, filter by size, metro and specialty, and access 3,776 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax resolution software companies worldwide at a glance

As of Nov 5, 2026
35.6%Verified-email coverage
12.6Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · Houston
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
518
11-50
224
51-200
71
201-500
15
501-1,000
5
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 tax resolution software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “tax resolution 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 3,776 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 November 5, 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.

Tax resolution software companies by location

2 lists · largest first

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

How many tax resolution software companies are there worldwide?

RevenueBase identified 842 company matches for tax resolution software companies worldwide as of November 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?

Wolters Kluwer TAX & Accounting US tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most tax resolution software companies?

The United States leads with 606 companies, followed by Brazil (44). Every tax resolution software companies list by country and city is linked on this page.

Which city has the most tax resolution software companies?

Houston leads with 25 company records, followed by New York (19) and Los Angeles (18).

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 3,776 professional contacts with verified work emails tracked across these 842 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 November 5, 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.