Company lists · Data refreshed September 2026

Top 25 Business accounting outsourcing companies worldwide

RevenueBase identified 43,969 company matches for business accounting outsourcing companies worldwide as of September 2026 and tracks 244,333 professional contacts across them, including 52,649 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for business accounting outsourcing companies 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 27, 2026. Country and city lists for business accounting outsourcing companies 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 27, 2026 How this list was built
43,969Companies
244,333Contacts tracked
52,649Verified emails
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The 25 largest business accounting outsourcing companies worldwide

Ranked by team size
Top 25 of 43,969 company matches for business accounting outsourcing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSouthport, AustraliaHQ recorded Sep 27, 20261,001-5,0003,912 contacts →

Exact match

“Don’t wait until understaffing eats away at your productivity and client satisfaction.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchAustin, TX, United StatesHQ recorded Sep 27, 202610001+2,231 contacts →

Exact match

“OUR PEOPLE, YOUR PRIORITIES Streamline your finance & accounting team at 50% cost savings with a team as small as one.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchMakati, PhilippinesHQ recorded Sep 27, 20261,001-5,0001,021 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 27, 2026 · View company records in RevenueBase
4Exact matchBangalore, IndiaHQ recorded Sep 27, 20261,001-5,000995 contacts →

Exact match

“At Invensis, we solve business inefficiencies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchAhmedabad, IndiaHQ recorded Sep 27, 20261,001-5,000857 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 27, 2026 · View company records in RevenueBase
6Exact matchRecife, BrazilHQ recorded Sep 27, 2026501-1,000833 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 27, 2026 · View company records in RevenueBase
7Exact matchManila, PhilippinesHQ recorded Sep 27, 2026501-1,000831 contacts →

Exact match

“IQ BackOffice is the leading accounting Business Process Outsourcing and Automation provider, offering 99.97% quality and up to 68% savings to companies around the globe.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchAhmedabad, IndiaHQ recorded Sep 27, 20261,001-5,000810 contacts →

Exact match

“Established in 2008, Pacific was formed to serve the clients with the best services in the field of outsourced accounting.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchRohini, IndiaHQ recorded Sep 27, 2026n/a798 contacts →

Exact match

“D N A & Co.| Chartered Accountants”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchNorwich, United KingdomHQ recorded Sep 27, 2026201-500708 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 27, 2026 · View company records in RevenueBase
11Exact matchRio De Janeiro, BrazilHQ recorded Sep 27, 2026501-1,000666 contacts →

Exact match

“Fundada em 1984, a Domingues e Pinho Contadores conta com uma trajetória de sucesso, baseada na ética e na excelência dos serviços prestados.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchAhmedabad, IndiaHQ recorded Sep 27, 20261,001-5,000628 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 27, 2026 · View company records in RevenueBase
13Exact matchLuxembourgHQ recorded Sep 27, 2026501-1,000600 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 27, 2026 · View company records in RevenueBase
14Exact matchIrving, TX, United StatesHQ recorded Sep 27, 2026201-500571 contacts →

Exact match

“Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchGoiânia, BrazilHQ recorded Sep 27, 20261,001-5,000569 contacts →

Exact match

“A Planning oferece soluções contábeis, tributárias, trabalhistas e financeiras para empresas que buscam mais eficiência, segurança e inteligência na gestão dos seus negócios.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchHarrow, United KingdomHQ recorded Sep 27, 2026201-500477 contacts →

Exact match

“Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchHyderabad, IndiaHQ recorded Sep 27, 20261,001-5,000477 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 27, 2026 · View company records in RevenueBase
18Exact matchNoida, IndiaHQ recorded Sep 27, 2026501-1,000474 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 27, 2026 · View company records in RevenueBase
19Exact matchCentral Business District, SingaporeHQ recorded Sep 27, 2026201-500457 contacts →

Exact match

“Expert accountants + simple software = financial admin, done.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchCoventry, United KingdomHQ recorded Sep 27, 2026501-1,000423 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 27, 2026 · View company records in RevenueBase
21Exact matchBeverly, MA, United StatesHQ recorded Sep 27, 202651-200415 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 27, 2026 · View company records in RevenueBase
22Exact matchMohali, IndiaHQ recorded Sep 27, 2026201-500415 contacts →

Exact match

“Escalon’s one stop shop approach gives you a single touch point for everything you need to keep your company safe.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchMelbourne, AustraliaHQ recorded Sep 27, 2026501-1,000404 contacts →

Exact match

“We are OBP.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchEastwood, PhilippinesHQ recorded Sep 27, 2026501-1,000400 contacts →

Exact match

“More than a decade ago, two accountants looked at the future of accounting and then decided to become it.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261,001-5,000397 contacts →

Exact match

“Outsource Partners International (OPI) is a professional services firm dedicated to the outsourcing of finance, accounting, and analytics business processes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 43,969 business accounting outsourcing companies worldwide

See the full list, filter by size, metro and specialty, and access 52,649 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business accounting outsourcing companies worldwide at a glance

As of Sep 27, 2026
21.5%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
33,269
11-50
8,702
51-200
1,291
201-500
254
501-1,000
58
1,001-5,000
46
5,001-10,000
5
10001+
8

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 business accounting outsourcing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “business accounting outsourcing companies” 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 52,649 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 27, 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.

Business accounting outsourcing companies by location

161 lists · largest first

Every Business accounting outsourcing 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 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 “business accounting outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business accounting outsourcing companies are there worldwide?

RevenueBase identified 43,969 company matches for business accounting outsourcing companies 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 business accounting outsourcing companies?

The United States leads with 11,440 companies, followed by Brazil (4,416) and the United Kingdom (4,017). Every business accounting outsourcing companies list by country and city is linked on this page.

Which city has the most business accounting outsourcing companies?

London leads with 747 company records, followed by Sao Paulo (706) and Dubai (302).

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 52,649 professional contacts with verified work emails tracked across these 43,969 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 27, 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.