Company lists · Data refreshed September 2026

Top 25 Outsourcing accounting and bookkeeping firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 41,288 companies tracked

RevenueBase identified 41,288 company matches for outsourcing accounting and bookkeeping firms worldwide as of September 2026 and tracks 202,349 professional contacts across them, including 48,089 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for outsourcing accounting and bookkeeping firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for outsourcing accounting and bookkeeping firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

41,288Companies

202,349Contacts tracked

48,089Verified emails

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The 25 largest outsourcing accounting and bookkeeping firms worldwide

Ranked by team size

Top 25 of 41,288 company matches for outsourcing accounting and bookkeeping firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	TOA Global	Exact match	Southport, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	3,912 contacts →
	Exact match “Don’t wait until understaffing eats away at your productivity and client satisfaction.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	D&v Philippines	Exact match	Makati, PhilippinesHQ recorded Sep 21, 2026	1,001-5,000	1,021 contacts →
	Exact match “D&V Philippines is a finance and accounting outsourcing company that helps CFOs, accounting firms, audit firms, and other professional services firms build reliable offshore…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Confiance Business Solutions INC	Exact match	Ahmedabad, IndiaHQ recorded Sep 21, 2026	1,001-5,000	857 contacts →
	Exact match “Confiance specializes in providing highly personalized business solutions in the areas of bookkeeping and accounting, financial planning, financial advisory, back office and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Bernhoeft	Exact match	Recife, BrazilHQ recorded Sep 21, 2026	501-1,000	833 contacts →
	Exact match “A Bernhoeft Contadores é uma empresa de atuação nacional que oferece terceirização de serviços contábeis para clientes de diversos portes e segmentos.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	CA Firm In India	Exact match	Rohini, IndiaHQ recorded Sep 21, 2026	n/a	798 contacts →
	Exact match “D N A & Co.\| Chartered Accountants” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Taxassist Accountants	Exact match	Norwich, United KingdomHQ recorded Sep 21, 2026	201-500	708 contacts →
	Exact match “At TaxAssist Accountants we specialise in providing accountancy services, tax returns, payroll, bookkeeping, tax savings and tax advice to small businesses and support over…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	KMK	Exact match	Ahmedabad, IndiaHQ recorded Sep 21, 2026	1,001-5,000	628 contacts →
	Exact match “KMK Ventures is a leading Outsourced Accounting & Tax solutions company providing services to clients based out of USA.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	KUMAR	Exact match	United StatesHQ recorded Sep 21, 2026	1,001-5,000	627 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	BDO Luxembourg	Exact match	LuxembourgHQ recorded Sep 21, 2026	501-1,000	600 contacts →
	Exact match “BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Metriqe Solutions	Exact match	Irving, TX, United StatesHQ recorded Sep 21, 2026	201-500	571 contacts →
	Exact match “Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Outbooks	Exact match	Harrow, United KingdomHQ recorded Sep 21, 2026	201-500	477 contacts →
	Exact match “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Share Microfin LTD	Exact match	Hyderabad, IndiaHQ recorded Sep 21, 2026	1,001-5,000	477 contacts →
	Exact match “Share Microfin Ltd is an Accounting company located in 1-224/58, Rajeev Nagar, Nacharam, Hyderabad, Andhra Pradesh, India.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Global FPO	Exact match	Noida, IndiaHQ recorded Sep 21, 2026	501-1,000	474 contacts →
	Exact match “Global FPO is an Accounting, Bookkeeping and Tax Consulting, and outsourcing company that helps CPAs, accounting firms, small and mid-sized businesses, and startups strengthen…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	OSOME	Exact match	Central Business District, SingaporeHQ recorded Sep 21, 2026	201-500	457 contacts →
	Exact match “Expert accountants + simple software = financial admin, done.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Corient Business Solutions Limited	Exact match	Coventry, United KingdomHQ recorded Sep 21, 2026	501-1,000	423 contacts →
	Exact match “Corient is a specialist outsourced accounting and bookkeeping partner, built exclusively for UK accountancy practices.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Supporting Strategies	Exact match	Beverly, MA, United StatesHQ recorded Sep 21, 2026	51-200	415 contacts →
	Exact match “Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Gravita	Exact match	London, United KingdomHQ recorded Sep 21, 2026	201-500	379 contacts →
	Exact match “Welcome to the new era of accountancy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Administratiekantoor Tidak B.V	Exact match	Alphen Aan Den Rijn, NetherlandsHQ recorded Sep 21, 2026	n/a	377 contacts →
	Exact match “Tidak in Alphen aan den Rijn is het administratiekantoor voor startende ondernemers, zzp'ers, mkb en particulieren.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Bench Accounting By Mainstreet	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	201-500	366 contacts →
	Exact match “At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Cohesive	Exact match	Exton, PA, United StatesHQ recorded Sep 21, 2026	501-1,000	364 contacts →
	Exact match “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Advantage ONE TAX Consulting	Exact match	Sterling, VA, United StatesHQ recorded Sep 21, 2026	201-500	347 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Botkeeper	Exact match	St Petersburg, FL, RussiaHQ recorded Sep 21, 2026	51-200	341 contacts →
	Exact match “It's time to experience the ONLY automated bookkeeping solution purpose-built for Accounting Firms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Unison Globus	Exact match	Coral Springs, FL, United StatesHQ recorded Sep 21, 2026	201-500	320 contacts →
	Exact match “Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	BDO Solutions	Exact match	Moka, MauritiusHQ recorded Sep 21, 2026	501-1,000	310 contacts →
	Exact match “BDO Solutions is a Business Services & Outsourcing company located in Mauritius and forms part of the international BDO network, which extends across 166 countries and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Grupo Conceito	Exact match	Lisbon, PortugalHQ recorded Sep 21, 2026	201-500	303 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “outsourcing accounting and bookkeeping firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 41,288 outsourcing accounting and bookkeeping firms worldwide

See the full list, filter by size, metro and specialty, and access 48,089 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourcing accounting and bookkeeping firms worldwide at a glance

As of Sep 21, 2026

23.8%Verified-email coverage

4.9Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

32,403

11-50

7,449

51-200

895

201-500

151

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

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for outsourcing accounting and bookkeeping firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “outsourcing accounting and bookkeeping firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 48,089 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Outsourcing accounting and bookkeeping firms by location

155 lists · largest first

Every Outsourcing accounting and 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “outsourcing accounting and bookkeeping firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourcing accounting and bookkeeping firms are there worldwide?

RevenueBase identified 41,288 company matches for outsourcing accounting and bookkeeping firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

TOA Global tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most outsourcing accounting and bookkeeping firms?

The United States leads with 12,330 companies, followed by the United Kingdom (4,025) and Brazil (2,939). Every outsourcing accounting and bookkeeping firms list by country and city is linked on this page.

Which city has the most outsourcing accounting and bookkeeping firms?

London leads with 729 company records, followed by Sao Paulo (433) and New York (253).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 48,089 professional contacts with verified work emails tracked across these 41,288 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.