Company lists · Data refreshed September 2026

Top 25 Bookkeeping firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 44,630 companies tracked

RevenueBase identified 44,630 bookkeeping firms worldwide as of September 2026 and tracks 215,228 professional contacts across them, including 51,858 with verified work emails. The United States is the largest market and London the largest hub.

This list covers bookkeeping 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 19, 2026. Country and city lists for bookkeeping 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 19, 2026 86% judged on-target in blind review

44,630Companies

215,228Contacts tracked

51,858Verified emails

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The 25 largest bookkeeping firms worldwide

Ranked by team size

Top 25 of 44,630 bookkeeping firms worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to bookkeeping 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	CA Firm	Indirect evidence	Chennai, IndiaHQ checked Sep 19, 2026	n/a	10,260 contacts →
	Indirect evidence “The core business of our firm is to provide comprehensive package of accounting, secretarial, taxation and business advisory services to Corporate Clients.” Source: RevenueBase Database · checked Sep 19, 2026
2	Bernhoeft	Indirect evidence	Recife, BrazilHQ checked Sep 19, 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 19, 2026
3	Taxassist Accountants	Strong evidence	Norwich, United KingdomHQ checked Sep 19, 2026	201-500	708 contacts →
	Strong evidence “At TaxAssist Accountants we specialise in providing accountancy services, tax returns, payroll, bookkeeping, tax savings and tax advice to small businesses and support over…” Source: RevenueBase Database · checked Sep 19, 2026
4	Rantalainen OY	Indirect evidence	Helsinki, FinlandHQ checked Sep 19, 2026	1,001-5,000	618 contacts →
	Indirect evidence “Rantalainen on vuonna 1972 perustettu tilitoimistokonserni, joka on Suomen markkinajohtaja talous- ja palkkahallintoalalla.” Source: RevenueBase Database · checked Sep 19, 2026
5	BDO Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 19, 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 19, 2026
6	SBB Accountants & Advisors	Indirect evidence	Leuven, BelgiumHQ checked Sep 19, 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 19, 2026
7	Outbooks	Strong evidence	Harrow, United KingdomHQ checked Sep 19, 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 19, 2026
8	FED	Indirect evidence	Paris, FranceHQ checked Sep 19, 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 19, 2026
9	Corient Business Solutions Limited	Strong evidence	Coventry, United KingdomHQ checked Sep 19, 2026	501-1,000	423 contacts →
	Strong evidence “Corient is a specialist outsourced accounting and bookkeeping partner, built exclusively for UK accountancy practices.” Source: RevenueBase Database · checked Sep 19, 2026
10	Administratiekantoor Tidak B.V	Indirect evidence	Alphen Aan Den Rijn, NetherlandsHQ checked Sep 19, 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 19, 2026
11	Bench Accounting By Mainstreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 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 19, 2026
12	Looking For NEW Opportunities	Indirect evidence	Stapleford, United KingdomHQ checked Sep 19, 2026	n/a	296 contacts →
	Indirect evidence “Accounting services for sole traders and SME’s.” Source: RevenueBase Database · checked Sep 19, 2026
13	Batt & Associés	Strong evidence	Nancy, FranceHQ checked Sep 19, 2026	201-500	284 contacts →
	Strong 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 19, 2026
14	Virtual Clone	Indirect evidence	Bhilai, IndiaHQ checked Sep 19, 2026	51-200	243 contacts →
	Indirect evidence “Virtual Clone is a leading provider of accounting outsourcing services, tailored specifically for ACCA/FCCA and Chartered Accountancy firms in the UK and Australia.” Source: RevenueBase Database · checked Sep 19, 2026
15	Fiduciaire	Indirect evidence	Beaufays, BelgiumHQ checked Sep 19, 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 19, 2026
16	OIL & GAS Business Solutions, INC	Strong evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	n/a	182 contacts →
	Strong evidence “Providing bookkeeping functions for oil and gas operator, investor, and royalty management entities.” Source: RevenueBase Database · checked Sep 19, 2026
17	Aallon Group	Indirect evidence	Helsinki, FinlandHQ checked Sep 19, 2026	201-500	178 contacts →
	Indirect evidence “Olemme asiantunteva, pitkiä asiakassuhteita ja kasvollista palvelua vaaliva taloushallinnon luotettava kumppanisi.” Source: RevenueBase Database · checked Sep 19, 2026
18	Platinum Accounting Australia	Strong evidence	Surry Hills, AustraliaHQ checked Sep 19, 2026	n/a	178 contacts →
	Strong evidence “Tax Returns, Tax Advice, Accounting Services, Bookkeeping, Asset Consulting, Investment Governance and Portfolio Management for individuals, companies, partnerships and Trusts…” Source: RevenueBase Database · checked Sep 19, 2026
19	HCE	Indirect evidence	RomaniaHQ checked Sep 19, 2026	n/a	174 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
20	Contajá Contabilidade Online	Indirect evidence	Viçosa, BrazilHQ checked Sep 19, 2026	201-500	172 contacts →
	Indirect evidence “A Contajá é uma Contabilidade Online e Confiável, tendo como missão ser reconhecida pela excelência na entrega de valor ao cliente, no Brasil e na América Latina.” Source: RevenueBase Database · checked Sep 19, 2026
21	Lemieux Nolet	Indirect evidence	Lévis, QC, CanadaHQ checked Sep 19, 2026	201-500	163 contacts →
	Indirect evidence “Lemieux Nolet, cabinet de comptables professionnels agréés, œuvre dans le domaine depuis 1949 en vous offrant entre autres des services en certification, fiscalité, évaluation…” Source: RevenueBase Database · checked Sep 19, 2026
22	WINT	Indirect evidence	Gothenburg, SwedenHQ checked Sep 19, 2026	51-200	149 contacts →
	Indirect evidence “BUSINESS MADE FUN.” Source: RevenueBase Database · checked Sep 19, 2026
23	UOL Účetnictví A UOL Účtovníctvo	Indirect evidence	Praha 5, Czech RepublicHQ checked Sep 19, 2026	201-500	143 contacts →
	Indirect evidence “Pusťte účetnictví z hlavy.” Source: RevenueBase Database · checked Sep 19, 2026
24	Ketel Thorstenson, LLP	Indirect evidence	Rapid City, SD, United StatesHQ checked Sep 19, 2026	51-200	141 contacts →
	Indirect evidence “Ketel Thorstenson, LLP, is a full-service accounting firm rich in history, serving clients since 1936.” Source: RevenueBase Database · checked Sep 19, 2026
25	Burgess Hodgson	Indirect evidence	Canterbury, United KingdomHQ checked Sep 19, 2026	51-200	140 contacts →
	Indirect evidence “Burgess Hodgson are a Kent based accountancy firm with the skills and expertise to rival any other accountancy firm in the UK.” Source: RevenueBase Database · checked Sep 19, 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 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 firms.
Partial evidence: Its own public description names part of bookkeeping firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name bookkeeping 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 44,630 bookkeeping firms worldwide

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Bookkeeping firms worldwide at a glance

As of Sep 19, 2026

24.1%Verified-email coverage

4.8Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

35,120

11-50

8,042

51-200

899

201-500

133

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 bookkeeping 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 bookkeeping firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “bookkeeping 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 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 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, 51,858 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 19, 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 firms by location

170 lists · largest first

Every Bookkeeping 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 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 firms are there worldwide?

RevenueBase identified 44,630 bookkeeping 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?

CA Firm, headquartered in Chennai, tops this list with the largest team on record.

Which country has the most bookkeeping firms?

The United States leads with 13,512 companies, followed by the United Kingdom (4,675) and Brazil (3,305). Every bookkeeping firms list by country and city is linked on this page.

Which city has the most bookkeeping firms?

London leads with 803 headquartered companies, followed by Sao Paulo (462) and New York (288).

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 51,858 verified decision-maker contacts tracked across these 44,630 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 19, 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.