Company lists · Data refreshed September 2026

Top 25 Bookkeeping and accounting firms worldwide

Name: Bookkeeping and accounting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 51,441 companies tracked

RevenueBase identified 51,441 bookkeeping and accounting firms worldwide as of September 2026 and tracks 261,048 professional contacts across them, including 82,371 with verified work emails and 38,348 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers bookkeeping and accounting 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 28, 2026. Country and city lists for bookkeeping and accounting 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 28, 2026 86% judged on-target in blind review

51,441Companies

261,048Contacts tracked

82,371Verified emails

38,348Mobile numbers

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The 25 largest bookkeeping and accounting firms worldwide

Ranked by team size

Top 25 of 51,441 bookkeeping and accounting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to bookkeeping and accounting 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	ASPIA	Indirect evidence	Stockholm, SwedenHQ checked Sep 28, 2026	1,001-5,000	1,280 contacts →
	Indirect evidence “Aspia är Nordeuropas ledande affärspartner för företag som vill ta nästa steg.” Source: RevenueBase Database · checked Sep 28, 2026
2	Bernhoeft	Indirect evidence	Recife, BrazilHQ checked Sep 28, 2026	501-1,000	833 contacts →
	Indirect evidence “A Bernhoeft Contadores é uma empresa de atuação nacional que oferece terceirização de serviços contábeis para clientes de diversos portes e segmentos.” Source: RevenueBase Database · checked Sep 28, 2026
3	BDO Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 28, 2026	501-1,000	600 contacts →
	Indirect evidence “BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.” Source: RevenueBase Database · checked Sep 28, 2026
4	BDO Israel	Partial evidence	Tel Aviv, IsraelHQ checked Sep 28, 2026	1,001-5,000	574 contacts →
	Partial evidence “BDO Israel is a dynamic and business oriented accounting and consulting firm, ranking amongst the five leading industry firms in Israel and part of the international network BDO.” Source: RevenueBase Database · checked Sep 28, 2026
5	SBB Accountants & Advisors	Indirect evidence	Leuven, BelgiumHQ checked Sep 28, 2026	501-1,000	515 contacts →
	Indirect evidence “Welcome to SBB, a firm of experienced accountants and tax consultants with 30 branches in Belgium.” Source: RevenueBase Database · checked Sep 28, 2026
6	Outbooks	Strong evidence	Harrow, United KingdomHQ checked Sep 28, 2026	201-500	477 contacts →
	Strong evidence “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Source: RevenueBase Database · checked Sep 28, 2026
7	FED	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	n/a	474 contacts →
	Indirect evidence “La FED est une société d’expertise-comptable avec une mission précise : accompagner les entrepreneurs,favoriser leur réussite.Grâce à nos valeurs, nous bâtissons une relation de…” Source: RevenueBase Database · checked Sep 28, 2026
8	Gravita	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	379 contacts →
	Indirect evidence “Welcome to the new era of accountancy.” Source: RevenueBase Database · checked Sep 28, 2026
9	Administratiekantoor Tidak B.V	Indirect evidence	Alphen Aan Den Rijn, NetherlandsHQ checked Sep 28, 2026	n/a	377 contacts →
	Indirect evidence “Tidak in Alphen aan den Rijn is het administratiekantoor voor startende ondernemers, zzp'ers, mkb en particulieren.” Source: RevenueBase Database · checked Sep 28, 2026
10	Bench Accounting By Mainstreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	366 contacts →
	Indirect evidence “At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.” Source: RevenueBase Database · checked Sep 28, 2026
11	Alianzo	Indirect evidence	Goiânia, BrazilHQ checked Sep 28, 2026	201-500	320 contacts →
	Indirect evidence “Movidos pela alta performance, resultados financeiros, contábeis e operacionais excepcionais para nossos clientes, a Alianzo é feita por pessoas.” Source: RevenueBase Database · checked Sep 28, 2026
12	In Extenso Centre Ouest	Indirect evidence	Cholet, FranceHQ checked Sep 28, 2026	501-1,000	313 contacts →
	Indirect evidence “In Extenso Centre Ouest, dirigé par Jean-François Trouillard est un acteur majeur de l’expertise comptable et des services professionnels pour les TPE-PME dans l’ouest de la…” Source: RevenueBase Database · checked Sep 28, 2026
13	Grupo Conceito	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	201-500	303 contacts →
	Indirect evidence “Fundada em junho de 1982, a Conceito dedica-se à prestação de serviços de outsourcing nas áreas de Contabilidade, Fiscalidade, Consultoria, Processamento Salarial, Tesouraria e…” Source: RevenueBase Database · checked Sep 28, 2026
14	Looking For NEW Opportunities	Partial evidence	Stapleford, United KingdomHQ checked Sep 28, 2026	n/a	296 contacts →
	Partial evidence “Accounting services for sole traders and SME’s.” Source: RevenueBase Database · checked Sep 28, 2026
15	Batt & Associés	Partial evidence	Nancy, FranceHQ checked Sep 28, 2026	201-500	284 contacts →
	Partial evidence “The 23 expert managers, supported by 250 specialist employees, support and advise their clients on a daily basis, from bookkeeping to advice and the engineering of solutions…” Source: RevenueBase Database · checked Sep 28, 2026
16	Klara Consulting	Indirect evidence	Stockholm, SwedenHQ checked Sep 28, 2026	201-500	263 contacts →
	Indirect evidence “Välkommen till Klara Consulting Vi finns här för dig som söker en trygg partner inom ekonomi - eller en arbetsplats med omtanke!” Source: RevenueBase Database · checked Sep 28, 2026
17	Afigec	Partial evidence	Paris - Levallois Perret, FranceHQ checked Sep 28, 2026	201-500	263 contacts →
	Partial evidence “Afigec is a multi-skilled accounting firm that is constantly improving the usual client relationship framework and the proximity with its clients.” Source: RevenueBase Database · checked Sep 28, 2026
18	FBC Farm And Small Business TAX Consultants	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 28, 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 28, 2026
19	Extencia Cabinet D'expertise Comptable	Indirect evidence	Bordeaux, FranceHQ checked Sep 28, 2026	201-500	237 contacts →
	Indirect evidence “Fondé en 1944, Extencia est un cabinet d'expertise comptable indépendant qui a su évoluer avec son temps tout en conservant ses valeurs fondamentales.” Source: RevenueBase Database · checked Sep 28, 2026
20	Kingston Ross Pasnak LLP	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 28, 2026	51-200	218 contacts →
	Indirect evidence “Kingston Ross Pasnak offers an array of comprehensive services through our highly skilled professionals.” Source: RevenueBase Database · checked Sep 28, 2026
21	Fiduciaire	Indirect evidence	Beaufays, BelgiumHQ checked Sep 28, 2026	n/a	198 contacts →
	Indirect 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 28, 2026
22	RSM Poland	Indirect evidence	Poznań, PolandHQ checked Sep 28, 2026	201-500	193 contacts →
	Indirect evidence “RSM Poland to więcej niż biuro rachunkowe, kancelaria doradztwa podatkowego i firma audytorska – to przede wszystkim profesjonalni doradcy i zaufani partnerzy w biznesie.” Source: RevenueBase Database · checked Sep 28, 2026
23	JCA Contadores	Indirect evidence	Niterói, BrazilHQ checked Sep 28, 2026	51-200	193 contacts →
	Indirect evidence “Excelência em consultoria.” Source: RevenueBase Database · checked Sep 28, 2026
24	Accountor Norge	Indirect evidence	NorwayHQ checked Sep 28, 2026	501-1,000	192 contacts →
	Indirect evidence “Med 70 kontorer over hele Norge er vi store, men også lokale.” Source: RevenueBase Database · checked Sep 28, 2026
25	Galloways Accounting	Partial evidence	Brighton, United KingdomHQ checked Sep 28, 2026	201-500	187 contacts →
	Partial evidence “Galloways is the fastest growing accounting services firm in Sussex.” Source: RevenueBase Database · checked Sep 28, 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: bookkeeping and accounting 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 bookkeeping and accounting firms.
Partial evidence: Its own public description names part of bookkeeping and accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name bookkeeping and accounting 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 51,441 bookkeeping and accounting firms worldwide

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Bookkeeping and accounting firms worldwide at a glance

As of Sep 28, 2026

31.6%Verified-email coverage

14.7%Mobile-number coverage

5.1Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

39,049

11-50

10,540

51-200

1,143

201-500

159

501-1,000

1,001-5,000

5,001-10,000

10001+

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 bookkeeping and accounting 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: 39 countries, largest first: the United States, Brazil, the United Kingdom, Canada, Australia, the Netherlands, France, South Africa, Germany, Sweden and 29 more. Country and city lists for bookkeeping and accounting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “bookkeeping and accounting 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 bookkeeping and accounting 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 bookkeeping and accounting 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, 82,371 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 28, 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.

Bookkeeping and accounting firms by location

235 lists · largest first

Every Bookkeeping and accounting 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 bookkeeping and accounting 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 bookkeeping and accounting firms are there worldwide?

RevenueBase identified 51,441 bookkeeping and accounting 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?

ASPIA, headquartered in Stockholm, tops this list with the largest team on record.

Which country has the most bookkeeping and accounting firms?

The United States leads with 18,482 companies, followed by Brazil (6,512) and the United Kingdom (5,615). Every bookkeeping and accounting firms list by country and city is linked on this page.

Which city has the most bookkeeping and accounting firms?

London leads with 1034 headquartered companies, followed by Sao Paulo (982) and New York (393).

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 82,371 verified decision-maker contacts tracked across these 51,441 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 28, 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.