Company lists · Data refreshed October 2026

Top 25 Irs compliance software companies worldwide

RevenueBase identified 379 company matches for irs compliance software companies worldwide as of October 2026 and tracks 16,907 professional contacts across them, including 7,995 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for irs compliance 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 1, 2026. Country and city lists for irs compliance 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 1, 2026 How this list was built
379Companies
16,907Contacts tracked
7,995Verified emails
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The 25 largest irs compliance software companies worldwide

Ranked by team size
Top 25 of 379 company matches for irs compliance software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 1, 20265,001-10,0006,089 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 1, 2026 · View company records in RevenueBase
2Exact matchKing Of Prussia, PA, United StatesHQ recorded Oct 1, 20261,001-5,0002,068 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchFranklin, United StatesHQ recorded Oct 1, 2026501-1,000561 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 · Oct 1, 2026 · View company records in RevenueBase
4Exact matchMangaluru, IndiaHQ recorded Oct 1, 2026201-500309 contacts →

Exact match

“Winman Software India LLP, based in Mangaluru, is engaged in developing and distributing standardized software products with a special focus on income tax software for the Indian…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchLong Island City, NY, United StatesHQ recorded Oct 1, 2026201-500302 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 1, 2026 · View company records in RevenueBase
6Exact matchIrvine, CA, United StatesHQ recorded Oct 1, 2026501-1,000289 contacts →

Exact match

“SurePrep was founded in 2002 and is the leader in 1040 productivity for CPA firms.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSantiago, ChileHQ recorded Oct 1, 2026201-500281 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 1, 2026 · View company records in RevenueBase
8Exact matchIstanbul, TürkiyeHQ recorded Oct 1, 202651-200240 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 1, 2026 · View company records in RevenueBase
9Exact matchJaipur, IndiaHQ recorded Oct 1, 202651-200234 contacts →

Exact match

“KDK Softwares is transforming tax compliance in India with innovative, cloud-based solutions that simplify financial processes for tax professionals, SMEs, and corporates.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchFayetteville, AR, United StatesHQ recorded Oct 1, 202651-200206 contacts →

Exact match

“Zenwork, through its Tax1099 and Compliancely brands, is a fast-growing digital tax compliance and regulatory reporting technology company, with 10+ years of experience powering…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchAhmedabad, IndiaHQ recorded Oct 1, 2026201-500201 contacts →

Exact match

“Inventyv Software Services Pvt.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchSão Paulo, BrazilHQ recorded Oct 1, 202651-200191 contacts →

Exact match

“A Reforma Tributária já começou.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchSão Paulo, BrazilHQ recorded Oct 1, 202651-200189 contacts →

Exact match

“Systax: The Evolution of Tax Intelligence.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchJuiz De Fora, BrazilHQ recorded Oct 1, 202651-200187 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 1, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Oct 1, 202651-200175 contacts →

Exact match

“Background TaxHawk, Inc.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchUnited StatesHQ recorded Oct 1, 202610001+174 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchRosenheim, GermanyHQ recorded Oct 1, 2026201-500152 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchPune, IndiaHQ recorded Oct 1, 202651-200143 contacts →

Exact match

“Sinewave Computer Services Pvt.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 202651-200140 contacts →

Exact match

“Instead is where tax work gets done.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchStaines-Upon-Thames Middlesex, United KingdomHQ recorded Oct 1, 202651-200138 contacts →

Exact match

“We are game changers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchLathrop, CA, United StatesHQ recorded Oct 1, 202651-200136 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 · Oct 1, 2026 · View company records in RevenueBase
22Exact matchFranklin, NC, United StatesHQ recorded Oct 1, 20261,001-5,000136 contacts →

Exact match

“Taxwell is a leading digital tax filing platform formed in 2022 from the combination of Drake Software® and TaxAct®.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchGrand Rapids, MI, United StatesHQ recorded Oct 1, 202651-200122 contacts →

Exact match

“Greatland is a rapidly growing company of more than 135 employee-owners, all focused on building on our position as the leading provider of W-2 and 1099 reporting solutions for…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchNewbury, NH, United KingdomHQ recorded Oct 1, 2026n/a108 contacts →

Exact match

“Tax Preparer is a financial services company based out of 25 Washington St, Newbury, New Hampshire, United States.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchSão Paulo, BrazilHQ recorded Oct 1, 202651-20095 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 379 irs compliance software companies worldwide

See the full list, filter by size, metro and specialty, and access 7,995 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Irs compliance software companies worldwide at a glance

As of Oct 1, 2026
47.3%Verified-email coverage
44.6Average contacts per company
11-50Median size (employees)
2.9%Largest-city concentration · Sao Paulo
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
160
11-50
133
51-200
58
201-500
16
501-1,000
5
1,001-5,000
3
5,001-10,000
1
10001+
2

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 irs compliance software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “irs compliance 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 7,995 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 1, 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.

Irs compliance software companies by location

3 lists · largest first

Every Irs 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 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 “irs compliance software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many irs compliance software companies are there worldwide?

RevenueBase identified 379 company matches for irs compliance 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 irs compliance software companies?

The United States leads with 222 companies, followed by Brazil (42) and India (40). Every irs compliance software companies list by country and city is linked on this page.

Which city has the most irs compliance software companies?

Sao Paulo leads with 11 company records, followed by Jaipur (6) and Mumbai (6).

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 7,995 professional contacts with verified work emails tracked across these 379 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 1, 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.