Company lists · Data refreshed September 2026

Top 25 Bookkeeping service companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 20,759 companies tracked

RevenueBase identified 20,759 bookkeeping service companies worldwide as of September 2026 and tracks 74,124 professional contacts across them, including 15,560 with verified work emails. The United States is the largest market and London the largest hub.

This list covers bookkeeping service companies 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 service companies 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

20,759Companies

74,124Contacts tracked

15,560Verified emails

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The 25 largest bookkeeping service companies worldwide

Ranked by team size

Top 25 of 20,759 bookkeeping service companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to bookkeeping service companies: 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	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
2	Share Microfin LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 19, 2026	1,001-5,000	477 contacts →
	Indirect evidence “Share Microfin Ltd is an Accounting company located in 1-224/58, Rajeev Nagar, Nacharam, Hyderabad, Andhra Pradesh, India.” Source: RevenueBase Database · checked Sep 19, 2026
3	OSOME	Indirect evidence	Central Business District, SingaporeHQ checked Sep 19, 2026	201-500	457 contacts →
	Indirect evidence “Expert accountants + simple software = financial admin, done.” Source: RevenueBase Database · checked Sep 19, 2026
4	Supporting Strategies	Strong evidence	Beverly, MA, United StatesHQ checked Sep 19, 2026	51-200	415 contacts →
	Strong evidence “Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.” Source: RevenueBase Database · checked Sep 19, 2026
5	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
6	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
7	Oremus Corporate Services	Strong evidence	Hyderabad, IndiaHQ checked Sep 19, 2026	201-500	260 contacts →
	Strong evidence “At Oremus Corporate Services, we specialize in delivering top-notch Accounting and Bookkeeping, Secretarial Compliance, Payroll, Tax, HR, and Business Advisory Services.” Source: RevenueBase Database · checked Sep 19, 2026
8	Mercurius Advisory Services	Strong evidence	New Delhi, IndiaHQ checked Sep 19, 2026	201-500	249 contacts →
	Strong evidence “Mercurius Advisory Services (MAS) provides comprehensive suite of accounting, bookkeeping and taxation services to small, medium and large enterprises.” Source: RevenueBase Database · checked Sep 19, 2026
9	First Class Accounts	Strong evidence	Robina, AustraliaHQ checked Sep 19, 2026	201-500	186 contacts →
	Strong evidence “First Class Accounts is proudly Australia's largest bookkeeping franchise with an extensive national network of professional bookkeepers who operate their own businesses.” Source: RevenueBase Database · checked Sep 19, 2026
10	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
11	Mindspace Outsourcing	Strong evidence	Jaipur, IndiaHQ checked Sep 19, 2026	51-200	156 contacts →
	Strong evidence “Mindspace Outsourcing, established in 2007, and offers bookkeeping outsourcing and accounting services to individuals and small to medium-sized businesses in the United States…” Source: RevenueBase Database · checked Sep 19, 2026
12	Meru Accounting	Strong evidence	Ahmedabad, IndiaHQ checked Sep 19, 2026	201-500	151 contacts →
	Strong evidence “Meru Accounting is the Accounting firm running under the leadership of CA Rushabh Shah and CA Harnish Shah providing accounting and bookkeeping services across Australia, US…” Source: RevenueBase Database · checked Sep 19, 2026
13	Accounting Solutions	Indirect evidence	Houston, PA, United StatesHQ checked Sep 19, 2026	n/a	149 contacts →
	Indirect evidence “Accounting Solutions provides a wide range of services to individuals and businesses in a variety of industries.” Source: RevenueBase Database · checked Sep 19, 2026
14	accountingdepartment.com	Strong evidence	United StatesHQ checked Sep 19, 2026	51-200	141 contacts →
	Strong evidence “AccountingDepartment.com, LLC was formed in 2004 to providing full-charge bookkeeping and accounting services for the small to medium business market.” Source: RevenueBase Database · checked Sep 19, 2026
15	't Cijferhuys Financieele Diensten	Indirect evidence	NetherlandsHQ checked Sep 19, 2026	n/a	114 contacts →
	Indirect evidence “Werkzaamheden Op de volgende gebieden kunnen wij u adviseren, ondersteunen en/of werk uit handen nemen: financiële administratie, inclusief debiteuren/crediteurenbeheer…” Source: RevenueBase Database · checked Sep 19, 2026
16	Crystalvoxx LLC Accounting Services	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	51-200	108 contacts →
	Indirect evidence “CrystalVoxx offers a wide range of accounting and payroll services to suit diverse customer needs [Accounting & Payroll, EMR Integrated Transcription, Revenue Cycle Management,].” Source: RevenueBase Database · checked Sep 19, 2026
17	HCL Accountancy Limited	Strong evidence	United KingdomHQ checked Sep 19, 2026	n/a	101 contacts →
	Strong evidence “Let us help you reduce the time you spend accounting and bookkeeping for your organisation giving you more time to run your business and enjoy life.” Source: RevenueBase Database · checked Sep 19, 2026
18	B.T. Bryan Accounting, INC	Indirect evidence	Palatine, United StatesHQ checked Sep 19, 2026	n/a	101 contacts →
	Indirect evidence “We specialize in accounting services for small and family-owned businesses-serving as the perfect extension of your company’s financial team.” Source: RevenueBase Database · checked Sep 19, 2026
19	Rayner Essex LLP	Indirect evidence	St Albans, United KingdomHQ checked Sep 19, 2026	51-200	98 contacts →
	Indirect evidence “At Rayner Essex, we believe your accountant should do a lot more than just report on how your business is doing - he or she should help you identify opportunities to improve your…” Source: RevenueBase Database · checked Sep 19, 2026
20	Acgile Accounting & Bookkeeping Services	Indirect evidence	Islamabad, PakistanHQ checked Sep 19, 2026	51-200	97 contacts →
	Indirect evidence “Since 2017, Acgile has helped U.S-based eCommerce, automotive, SaaS, and manufacturing businesses take control of their finances through specialized, outsourced accounting and…” Source: RevenueBase Database · checked Sep 19, 2026
21	Vyde TAX & Accounting	Strong evidence	Provo, UT, United StatesHQ checked Sep 19, 2026	51-200	97 contacts →
	Strong evidence “Vyde provides bookkeeping, taxes, and unlimited accounting advice for a small monthly fee.” Source: RevenueBase Database · checked Sep 19, 2026
22	VNC Global	Strong evidence	Vadodara, IndiaHQ checked Sep 19, 2026	51-200	96 contacts →
	Strong evidence “VNC Global is a leading offshore bookkeeping solutions provider supporting businesses across the Globe.” Source: RevenueBase Database · checked Sep 19, 2026
23	ENKEL	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	51-200	93 contacts →
	Strong evidence “Enkel is on a mission to disrupt the delivery of accounting and bookkeeping services with transformational cloud-based accounting technology.” Source: RevenueBase Database · checked Sep 19, 2026
24	Bookkeeping Services	Strong evidence	AustraliaHQ checked Sep 19, 2026	n/a	91 contacts →
	Strong evidence “Bookkeeping services with over 40+ years of combined experience, we've owned and worked with hundreds of businesses just like yours.” Source: RevenueBase Database · checked Sep 19, 2026
25	RS Finance	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	84 contacts →
	Indirect evidence “Accountancy for small and medium-sized enterprises.” 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 service companies. 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 service companies.
Partial evidence: Its own public description names part of bookkeeping service companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name bookkeeping service companies. 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 20,759 bookkeeping service companies worldwide

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Bookkeeping service companies worldwide at a glance

As of Sep 19, 2026

21.0%Verified-email coverage

3.6Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

17,733

11-50

2,560

51-200

255

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 bookkeeping service companies, 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 service companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “bookkeeping service companies”. 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 service companies), 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 service companies, 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, 15,560 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 service companies by location

60 lists · largest first

Every Bookkeeping service companies 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 service companies, 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 service companies are there worldwide?

RevenueBase identified 20,759 bookkeeping service companies 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?

Outbooks, headquartered in London, tops this list with the largest team on record.

Which country has the most bookkeeping service companies?

The United States leads with 7,364 companies, followed by the United Kingdom (1,625) and Canada (1,444). Every bookkeeping service companies list by country and city is linked on this page.

Which city has the most bookkeeping service companies?

London leads with 275 headquartered companies, followed by Toronto (138) and Houston (137).

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 15,560 verified decision-maker contacts tracked across these 20,759 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.