Company lists · Data refreshed September 2026

Top 25 Fiduciary tax preparation firms worldwide

Name: Fiduciary tax preparation firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 20,026 companies tracked

RevenueBase identified 20,026 fiduciary tax preparation firms worldwide as of September 2026 and tracks 165,267 professional contacts across them, including 42,681 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers fiduciary tax preparation firms 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 20, 2026. Country and city lists for fiduciary tax preparation firms 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 20, 2026 86% judged on-target in blind review

20,026Companies

165,267Contacts tracked

42,681Verified emails

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The 25 largest fiduciary tax preparation firms worldwide

Ranked by team size

Top 25 of 20,026 fiduciary tax preparation firms worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to fiduciary tax preparation firms: 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	MBE Cpas	Partial evidence	Baraboo, WI, United StatesHQ checked Sep 20, 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 20, 2026
2	Fiduciaire	Partial evidence	Beaufays, BelgiumHQ checked Sep 20, 2026	n/a	198 contacts →
	Partial evidence “Bonjour et bienvenue sur la page entreprise de la Fiduciaire au Carré - Une équipe dynamique à votre service- Assistance efficace et conseils individualisés tant aux personnes…” Source: RevenueBase Database · checked Sep 20, 2026
3	AGEIS	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	150 contacts →
	Partial evidence “AGEIS takes pride in revolutionising the landscape of accounting, tax, legal advisory.” Source: RevenueBase Database · checked Sep 20, 2026
4	Unione Fiduciaria	Partial evidence	Milano, ItalyHQ checked Sep 20, 2026	51-200	133 contacts →
	Partial evidence “Unione Fiduciaria is Italy's leading fiduciary company by assets under administration.” Source: RevenueBase Database · checked Sep 20, 2026
5	Contassesc Contabilidade	Indirect evidence	Joaçaba, BrazilHQ checked Sep 20, 2026	201-500	119 contacts →
	Indirect evidence “A Contassesc se destaca por fornecer serviços contábeis especializados, incluindo assessoria, consultoria e planejamento tributário.” Source: RevenueBase Database · checked Sep 20, 2026
6	AOG	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	101 contacts →
	Partial evidence “Welcome to AOG, your esteemed accounting and tax partner, serving SMEs and high-net-worth individuals in the UK and abroad.” Source: RevenueBase Database · checked Sep 20, 2026
7	Vallei Accountants	Indirect evidence	Woudenberg, NetherlandsHQ checked Sep 20, 2026	201-500	99 contacts →
	Indirect evidence “Bij ons gaat het allereerst om mensen en vervolgens om de cijfers, mensen maken het verschil.” Source: RevenueBase Database · checked Sep 20, 2026
8	Koeleman Accountants & Belastingadviseurs B.V	Indirect evidence	Hilversum, NetherlandsHQ checked Sep 20, 2026	51-200	97 contacts →
	Indirect evidence “In onze drie vestigingen in Hilversum, Voorschoten en Amsterdam staan we met een team van in totaal ca.” Source: RevenueBase Database · checked Sep 20, 2026
9	Baat Accountants & Adviseurs	Indirect evidence	Roermond, NetherlandsHQ checked Sep 20, 2026	51-200	94 contacts →
	Indirect evidence “Vanuit vestigingen in Maastricht, Roermond, Sittard, Venlo en Maasmechelen (B) werkt Baat dagelijks aan zijn missie: solving issues.” Source: RevenueBase Database · checked Sep 20, 2026
10	Ggfl LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	51-200	94 contacts →
	Partial evidence “GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Source: RevenueBase Database · checked Sep 20, 2026
11	Steuerring E.V. Lohnsteuerhilfeverein	Indirect evidence	Darmstadt, GermanyHQ checked Sep 20, 2026	1,001-5,000	91 contacts →
	Indirect evidence “Der Steuerring e.V.” Source: RevenueBase Database · checked Sep 20, 2026
12	Chan & Naylor	Indirect evidence	Pymble, AustraliaHQ checked Sep 20, 2026	51-200	90 contacts →
	Indirect evidence “Welcome to Chan & Naylor - your trusted advisors in financial care for families and businesses across generations.” Source: RevenueBase Database · checked Sep 20, 2026
13	TTT Financial Group	Partial evidence	Durban, South AfricaHQ checked Sep 20, 2026	51-200	89 contacts →
	Partial evidence “Secure Your Financial Future with Expert Tax Services, Accounting, Investment & Insurance Solutions.” Source: RevenueBase Database · checked Sep 20, 2026
14	The FRY Group	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	85 contacts →
	Partial evidence “We are a team of helpful tax and financial planning experts, here to listen, understand your needs and circumstances and make all aspects of dealing with your finances simple…” Source: RevenueBase Database · checked Sep 20, 2026
15	Armada Accountants & Advisors	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 20, 2026	51-200	83 contacts →
	Indirect evidence “Armada Accountants & Advisors brings together a dedicated team of specialists, each an expert in their own discipline and all working together toward your financial goals.” Source: RevenueBase Database · checked Sep 20, 2026
16	B.F.S	Indirect evidence	Woluwé-st-pierre, BelgiumHQ checked Sep 20, 2026	51-200	80 contacts →
	Indirect evidence “Belgian Financial Services” Source: RevenueBase Database · checked Sep 20, 2026
17	Clearline CPA	Indirect evidence	Surrey, BC, CanadaHQ checked Sep 20, 2026	51-200	78 contacts →
	Indirect evidence “Clearline Chartered Professional Accountants is an accounting firm based in Vancouver, Surrey and the Tri-Cities and is dedicated to bringing clarity, strategy and confidence to…” Source: RevenueBase Database · checked Sep 20, 2026
18	SST Accountants & Consultants	Partial evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	11-50	74 contacts →
	Partial evidence “SST Accountants & Consultants provides tax, audit, accounting, and business advisory services to privately-held businesses and individuals.” Source: RevenueBase Database · checked Sep 20, 2026
19	Totalserve Group	Strong evidence	Limassol, CyprusHQ checked Sep 20, 2026	201-500	74 contacts →
	Strong evidence “Totalserve is an award winning and long established international service provider specialising in the fields of international tax planning, corporate, trusts, and fiduciary…” Source: RevenueBase Database · checked Sep 20, 2026
20	RJ Sanderson & Associates	Indirect evidence	Dandenong, AustraliaHQ checked Sep 20, 2026	51-200	72 contacts →
	Indirect evidence “Established in 1993, RJ Sanderson have a reputation of innovation, honesty and ethics to uphold.” Source: RevenueBase Database · checked Sep 20, 2026
21	Countrywide TAX & Trust Corporation LTD	Partial evidence	Warwickshire, United KingdomHQ checked Sep 20, 2026	51-200	71 contacts →
	Partial evidence “Countrywide Tax & Trust Corporation Ltd provide a full range of private client and tax planning services, and the software packages to enable you to offer these services to your…” Source: RevenueBase Database · checked Sep 20, 2026
22	FIDAG	Partial evidence	Martigny, SwitzerlandHQ checked Sep 20, 2026	51-200	66 contacts →
	Partial evidence “Fiduciaire FIDAG SA, fondée en 1959, est un acteur majeur en Suisse romande avec ses 135 collaborateurs répartis dans 4 cantons.” Source: RevenueBase Database · checked Sep 20, 2026
23	Grewal Guyatt LLP	Partial evidence	Richmond Hill, ON, CanadaHQ checked Sep 20, 2026	51-200	64 contacts →
	Partial evidence “Grewal Guyatt LLP is a full-service professional services firm based out of the GTA that specializes in estate planning, tax consulting, business valuations and litigation support…” Source: RevenueBase Database · checked Sep 20, 2026
24	Galbraith Rushby	Indirect evidence	South AfricaHQ checked Sep 20, 2026	51-200	63 contacts →
	Indirect evidence “Galbraith Rushby is an accounting company based out of South Africa.” Source: RevenueBase Database · checked Sep 20, 2026
25	Steens & Partners Accountants EN Adviseurs	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 20, 2026	51-200	56 contacts →
	Indirect evidence “Steens & Partners is een team van accountants en belastingadviseurs.” Source: RevenueBase Database · checked Sep 20, 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: fiduciary tax preparation firms. 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 fiduciary tax preparation firms.
Partial evidence: Its own public description names part of fiduciary tax preparation firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fiduciary tax preparation firms. 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 20,026 fiduciary tax preparation firms worldwide

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Fiduciary tax preparation firms worldwide at a glance

As of Sep 20, 2026

25.8%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

15,127

11-50

4,083

51-200

491

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 fiduciary tax preparation firms, 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 fiduciary tax preparation firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “fiduciary tax preparation firms”. 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 fiduciary tax preparation firms), 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 fiduciary tax preparation firms, 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, 42,681 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 20, 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.

Fiduciary tax preparation firms by location

99 lists · largest first

Every Fiduciary tax preparation firms 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 fiduciary tax preparation firms, 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 fiduciary tax preparation firms are there worldwide?

RevenueBase identified 20,026 fiduciary tax preparation firms 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?

MBE Cpas, headquartered in Baraboo, tops this list with the largest team on record.

Which country has the most fiduciary tax preparation firms?

The United States leads with 11,496 companies, followed by Germany (1,167) and Canada (851). Every fiduciary tax preparation firms list by country and city is linked on this page.

Which city has the most fiduciary tax preparation firms?

New York leads with 240 headquartered companies, followed by Houston (201) and San Diego (136).

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 42,681 verified decision-maker contacts tracked across these 20,026 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 20, 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.