Company lists · Data refreshed September 2026

Top 25 Tax preparation and filing services worldwide

Name: Tax preparation and filing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 19,018 companies tracked

RevenueBase identified 19,018 tax preparation and filing services worldwide as of September 2026 and tracks 150,269 professional contacts across them, including 26,868 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers tax preparation and filing services 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 22, 2026. Country and city lists for tax preparation and filing services 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 22, 2026 86% judged on-target in blind review

19,018Companies

150,269Contacts tracked

26,868Verified emails

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The 25 largest tax preparation and filing services worldwide

Ranked by team size

Top 25 of 19,018 tax preparation and filing services worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to tax preparation and filing services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	H&r Block	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 22, 2026	10001+	59,451 contacts →
	Indirect evidence “H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Source: RevenueBase Database · checked Sep 22, 2026
2	Liberty TAX	Strong evidence	Hurst, TX, United StatesHQ checked Sep 22, 2026	n/a	6,260 contacts →
	Strong evidence “Liberty Tax is income tax preparation at its best: friendly, accurate, and with a money back guarantee.” Source: RevenueBase Database · checked Sep 22, 2026
3	Block Advisors	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,379 contacts →
	Indirect evidence “We are Block Advisors by H&R Block.” Source: RevenueBase Database · checked Sep 22, 2026
4	H&r Block Canada	Strong evidence	Calgary, AB, CanadaHQ checked Sep 22, 2026	5,001-10,000	889 contacts →
	Strong evidence “We’re Canada’s leading tax preparation firm for over 60 years – delivering value to Canadians by our expertise and knowledge in handling all tax situations and by our commitment…” Source: RevenueBase Database · checked Sep 22, 2026
5	Sensiba LLP	Partial evidence	San Jose, CA, United StatesHQ checked Sep 22, 2026	501-1,000	493 contacts →
	Partial evidence “Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.” Source: RevenueBase Database · checked Sep 22, 2026
6	H&r Block Australia	Partial evidence	Thornleigh, AustraliaHQ checked Sep 22, 2026	501-1,000	412 contacts →
	Partial evidence “As Australia’s largest preparer of personal income tax returns, with over 400 offices across Australia, expert help is never far away.” Source: RevenueBase Database · checked Sep 22, 2026
7	Cohesive	Indirect evidence	Exton, PA, United StatesHQ checked Sep 22, 2026	501-1,000	364 contacts →
	Indirect evidence “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Source: RevenueBase Database · checked Sep 22, 2026
8	Taxact	Partial evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	51-200	361 contacts →
	Partial evidence “TaxAct helps everyday Americans get every tax advantage they deserve by finding credits and deductions they never even knew existed.” Source: RevenueBase Database · checked Sep 22, 2026
9	Advantage ONE TAX Consulting	Partial evidence	Sterling, VA, United StatesHQ checked Sep 22, 2026	201-500	347 contacts →
	Partial evidence “Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Source: RevenueBase Database · checked Sep 22, 2026
10	Taxslayer	Partial evidence	Augusta, GA, IndiaHQ checked Sep 22, 2026	201-500	289 contacts →
	Partial evidence “For 60 years, TaxSlayer has been empowering Americans to take control of their taxes with easy-to-use, reliable software backed by U.S-based support.” Source: RevenueBase Database · checked Sep 22, 2026
11	Taxprime	Partial evidence	Jakarta Selatan, IndonesiaHQ checked Sep 22, 2026	201-500	269 contacts →
	Partial evidence “TaxPrime is a Tax Consulting Firm, based in Jakarta, the Capital City of Indonesia.” Source: RevenueBase Database · checked Sep 22, 2026
12	Mayatax	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	501-1,000	269 contacts →
	Indirect evidence “Growth exposes financial weakness.” Source: RevenueBase Database · checked Sep 22, 2026
13	FBC Farm And Small Business TAX Consultants	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 22, 2026	201-500	260 contacts →
	Indirect evidence “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Source: RevenueBase Database · checked Sep 22, 2026
14	Sureprep India Pvt.Ltd	Strong evidence	Mumbai, IndiaHQ checked Sep 22, 2026	501-1,000	256 contacts →
	Strong evidence “Providing tax preparation products and solutions to the accounting profession to increase productivity.” Source: RevenueBase Database · checked Sep 22, 2026
15	taxbuddy.com	Strong evidence	Mumbai, IndiaHQ checked Sep 22, 2026	n/a	240 contacts →
	Strong evidence “Welcome to TaxBuddy, your one-stop solution for all your tax preparation and filing needs- happy users across 2600 towns in India - 4.9 star Google rating from customers - Led by…” Source: RevenueBase Database · checked Sep 22, 2026
16	Accounting & TAX Services	Partial evidence	United StatesHQ checked Sep 22, 2026	n/a	203 contacts →
	Partial evidence “Since 1982, ATS has been a leader in providing quality tax, accounting and financial services to small businesses and individuals.” Source: RevenueBase Database · checked Sep 22, 2026
17	MBE Cpas	Partial evidence	Baraboo, WI, United StatesHQ checked Sep 22, 2026	51-200	201 contacts →
	Partial evidence “We are driven by more than a quality tax return, we provide effective solutions to help you, your family, and your business succeed.” Source: RevenueBase Database · checked Sep 22, 2026
18	Porte Brown LLC	Indirect evidence	Elk Grove Village, IL, United StatesHQ checked Sep 22, 2026	51-200	191 contacts →
	Indirect evidence “Porte Brown LLC is a full service accounting and consulting firm headquartered in the Chicago suburb of Elk Grove Village, Illinois.” Source: RevenueBase Database · checked Sep 22, 2026
19	Taxhawk, INC	Indirect evidence	United StatesHQ checked Sep 22, 2026	51-200	175 contacts →
	Indirect evidence “Background TaxHawk, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
20	Konnect Books & Taxes- Virtual CFO & USA TAX Consultants	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	145 contacts →
	Partial evidence “Konnect Books & Taxes, is an International Bookkeeping, Tax & Advisory firm, in the USA, with CPAs & Accountants, ready to help you take care of ALL your numbers.” Source: RevenueBase Database · checked Sep 22, 2026
21	Taxwell	Strong evidence	Franklin, NC, United StatesHQ checked Sep 22, 2026	1,001-5,000	136 contacts →
	Strong evidence “Taxwell is a leading digital tax filing platform formed in 2022 from the combination of Drake Software® and TaxAct®.” Source: RevenueBase Database · checked Sep 22, 2026
22	Dark Horse Cpas	Partial evidence	Cardiff, CA, United KingdomHQ checked Sep 22, 2026	51-200	134 contacts →
	Partial evidence “Dark Horse CPAs is a leading CPA firm specializing in comprehensive tax and accounting advisory services tailored for small businesses.” Source: RevenueBase Database · checked Sep 22, 2026
23	Taxaudit	Indirect evidence	Folsom, CA, United StatesHQ checked Sep 22, 2026	201-500	130 contacts →
	Indirect evidence “TaxAudit.com is brought to you by the audit experts at TaxResources, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
24	Scheffel Boyle	Indirect evidence	Alton, IL, United StatesHQ checked Sep 22, 2026	51-200	129 contacts →
	Indirect evidence “Scheffel Boyle started as a hometown firm, and although we have grown significantly during our over 100 years in business, we still have the local feel our clients appreciate.” Source: RevenueBase Database · checked Sep 22, 2026
25	Draffin Tucker	Indirect evidence	Albany, GA, United StatesHQ checked Sep 22, 2026	51-200	129 contacts →
	Indirect evidence “Since 1948, Draffin & Tucker has supplied a full range of professional accounting services to small businesses, large corporations, individuals, government entities, nonprofit…” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: tax preparation and filing services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names tax preparation and filing services.
Partial evidence: Its own public description names part of tax preparation and filing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax preparation and filing services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 19,018 tax preparation and filing services worldwide

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Tax preparation and filing services worldwide at a glance

As of Sep 22, 2026

17.9%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

1.1%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

14,409

11-50

3,704

51-200

504

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 preparation and filing services, 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: Every country. Country and city lists for tax preparation and filing services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “tax preparation and filing services”. 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 preparation and filing services), 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 preparation and filing services, 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, 26,868 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 22, 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 preparation and filing services by location

65 lists · largest first

Every Tax preparation and filing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 preparation and filing services, 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 preparation and filing services are there worldwide?

RevenueBase identified 19,018 tax preparation and filing services 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?

H&r Block, headquartered in Kansas City, tops this list with the largest team on record.

Which country has the most tax preparation and filing services?

The United States leads with 9,981 companies, followed by Germany (1,882) and Canada (934). Every tax preparation and filing services list by country and city is linked on this page.

Which city has the most tax preparation and filing services?

New York leads with 201 headquartered companies, followed by Houston (192) and Berlin (113).

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 26,868 verified decision-maker contacts tracked across these 19,018 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 22, 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.