Company lists · Data refreshed September 2026

Top 25 Accounting outsourcing service providers worldwide

RevenueBase identified 39,731 company matches for accounting outsourcing service providers worldwide as of September 2026 and tracks 256,798 professional contacts across them, including 54,123 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for accounting outsourcing service providers 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 accounting outsourcing service providers 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
39,731Companies
256,798Contacts tracked
54,123Verified emails
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The 25 largest accounting outsourcing service providers worldwide

Ranked by team size
Top 25 of 39,731 company matches for accounting outsourcing service providers 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSouthport, AustraliaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchAustin, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchSp, BrazilHQ recorded Sep 21, 20261,001-5,0001,791 contacts →

Exact match

“Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchJakarta, IndonesiaHQ recorded Sep 21, 2026501-1,0001,508 contacts →

Exact match

“BDO is the leading provider of professional services within the mid-tier of our profession.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchMakati, PhilippinesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchSas Nagar, IndiaHQ recorded Sep 21, 2026501-1,000917 contacts →

Exact match

“We’re on a mission to become Asia Pacific's most trusted provider of outsourced accounting, trade, international business and advisory services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLos Angeles, CA, United StatesHQ recorded Sep 21, 2026n/a913 contacts →

Exact match

“B Consulting provides a plug-and-play financial operations team for high-growth startups.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 21, 2026501-1,000890 contacts →

Exact match

“En Grant Thornton España ayudamos a que tu empresa vaya más allá.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchAhmedabad, IndiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10Exact matchRecife, BrazilHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11Exact matchManila, PhilippinesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12Exact matchAhmedabad, IndiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13Exact matchRohini, IndiaHQ recorded Sep 21, 2026n/a798 contacts →

Exact match

“D N A & Co.| Chartered Accountants”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchRio De Janeiro, BrazilHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
15Exact matchMontevideo, UruguayHQ recorded Sep 21, 2026201-500662 contacts →

Exact match

“Nuestra Empresa: CPA FERRERE es una de las mayores y más prestigiosas firmas de servicios profesionales de la región, con más de 600 colaboradores en sus oficinas de Uruguay y…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchAhmedabad, IndiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17Exact matchSan Fernando, PhilippinesHQ recorded Sep 21, 20261,001-5,000617 contacts →

Exact match

“Scrubbed is an outsourced professional services firm providing a complete suite of accounting*, finance, and tax services, as well as support services for professional…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchLuxembourgHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
19Exact matchIrving, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Sep 21, 2026201-500558 contacts →

Exact match

“Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchCairo, EgyptHQ recorded Sep 21, 20261,001-5,000508 contacts →

Exact match

“BDO Esnad- Egyptian Joint Stock Company and a member of BDO International Limited- is a leading Business Process Service Provider providing organizations with BPO services that…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchStockholm, SwedenHQ recorded Sep 21, 2026501-1,000505 contacts →

Exact match

“BDO – en global byrå med nöjdast kunder i revisionsbranschen BDO är en revisions- och rådgivningsbyrå som finns med dig hela vägen.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchNoida, IndiaHQ recorded Sep 21, 2026501-1,000486 contacts →

Exact match

“SandMartin is a distinguished industry leader with a 40-year legacy, employing over 550 skilled professionals across five offices in India, including state-of-the-art facilities…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 21, 2026201-500482 contacts →

Exact match

“We specialize in providing full-service CFOs, controllers, and operational accountants to consult with our clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchHarrow, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase

Showing 25 of 39,731 accounting outsourcing service providers worldwide

See the full list, filter by size, metro and specialty, and access 54,123 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting outsourcing service providers worldwide at a glance

As of Sep 21, 2026
21.1%Verified-email coverage
6.5Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Sao Paulo
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
28,581
11-50
8,993
51-200
1,475
201-500
301
501-1,000
70
1,001-5,000
45
5,001-10,000
4
10001+
7

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 accounting outsourcing service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “accounting outsourcing service providers” 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 54,123 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.

Accounting outsourcing service providers by location

146 lists · largest first

Every Accounting outsourcing service providers 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 “accounting outsourcing service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting outsourcing service providers are there worldwide?

RevenueBase identified 39,731 company matches for accounting outsourcing service providers 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 accounting outsourcing service providers?

The United States leads with 8,166 companies, followed by Brazil (5,534) and the United Kingdom (2,786). Every accounting outsourcing service providers list by country and city is linked on this page.

Which city has the most accounting outsourcing service providers?

Sao Paulo leads with 943 company records, followed by London (565) and Dubai (319).

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 54,123 professional contacts with verified work emails tracked across these 39,731 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.