Company lists · Data refreshed September 2026

Top 25 Accounting outsourcing service providers worldwide

Name: Accounting outsourcing service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 39,731 companies tracked

RevenueBase identified 39,731 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 accounting outsourcing service providers 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 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 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 21, 2026 86% judged on-target in blind review

39,731Companies

256,798Contacts tracked

54,123Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest accounting outsourcing service providers worldwide

Ranked by team size

Top 25 of 39,731 accounting outsourcing service providers worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to accounting outsourcing service providers: 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	TOA Global	Indirect evidence	Southport, AustraliaHQ checked Sep 21, 2026	1,001-5,000	3,912 contacts →
	Indirect evidence “Don’t wait until understaffing eats away at your productivity and client satisfaction.” Source: RevenueBase Database · checked Sep 21, 2026
2	Personiv	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	10001+	2,231 contacts →
	Partial evidence “OUR PEOPLE, YOUR PRIORITIES Streamline your finance & accounting team at 50% cost savings with a team as small as one.” Source: RevenueBase Database · checked Sep 21, 2026
3	BDO Brazil	Indirect evidence	Sp, BrazilHQ checked Sep 21, 2026	1,001-5,000	1,791 contacts →
	Indirect evidence “Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.” Source: RevenueBase Database · checked Sep 21, 2026
4	BDO In Indonesia	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 21, 2026	501-1,000	1,508 contacts →
	Indirect evidence “BDO is the leading provider of professional services within the mid-tier of our profession.” Source: RevenueBase Database · checked Sep 21, 2026
5	D&v Philippines	Strong evidence	Makati, PhilippinesHQ checked Sep 21, 2026	1,001-5,000	1,021 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
6	Kiran Foreign Trade KFT	Partial evidence	Sas Nagar, IndiaHQ checked Sep 21, 2026	501-1,000	917 contacts →
	Partial evidence “We’re on a mission to become Asia Pacific's most trusted provider of outsourced accounting, trade, international business and advisory services.” Source: RevenueBase Database · checked Sep 21, 2026
7	B Consulting	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	n/a	913 contacts →
	Indirect evidence “B Consulting provides a plug-and-play financial operations team for high-growth startups.” Source: RevenueBase Database · checked Sep 21, 2026
8	Grant Thornton España	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	501-1,000	890 contacts →
	Indirect evidence “En Grant Thornton España ayudamos a que tu empresa vaya más allá.” Source: RevenueBase Database · checked Sep 21, 2026
9	Confiance Business Solutions INC	Partial evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	857 contacts →
	Partial evidence “Confiance specializes in providing highly personalized business solutions in the areas of bookkeeping and accounting, financial planning, financial advisory, back office and…” Source: RevenueBase Database · checked Sep 21, 2026
10	Bernhoeft	Indirect evidence	Recife, BrazilHQ checked Sep 21, 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 21, 2026
11	IQ Backoffice	Strong evidence	Manila, PhilippinesHQ checked Sep 21, 2026	501-1,000	831 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
12	Pacific Group Of Companies	Partial evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	810 contacts →
	Partial evidence “Established in 2008, Pacific was formed to serve the clients with the best services in the field of outsourced accounting.” Source: RevenueBase Database · checked Sep 21, 2026
13	CA Firm In India	Indirect evidence	Rohini, IndiaHQ checked Sep 21, 2026	n/a	798 contacts →
	Indirect evidence “D N A & Co.\| Chartered Accountants” Source: RevenueBase Database · checked Sep 21, 2026
14	Domingues E Pinho Contadores	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 21, 2026	501-1,000	666 contacts →
	Indirect evidence “Fundada em 1984, a Domingues e Pinho Contadores conta com uma trajetória de sucesso, baseada na ética e na excelência dos serviços prestados.” Source: RevenueBase Database · checked Sep 21, 2026
15	CPA Ferrere	Indirect evidence	Montevideo, UruguayHQ checked Sep 21, 2026	201-500	662 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
16	KMK	Partial evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	628 contacts →
	Partial evidence “KMK Ventures is a leading Outsourced Accounting & Tax solutions company providing services to clients based out of USA.” Source: RevenueBase Database · checked Sep 21, 2026
17	Scrubbed.Net Global Services	Partial evidence	San Fernando, PhilippinesHQ checked Sep 21, 2026	1,001-5,000	617 contacts →
	Partial evidence “Scrubbed is an outsourced professional services firm providing a complete suite of accounting*, finance, and tax services, as well as support services for professional…” Source: RevenueBase Database · checked Sep 21, 2026
18	BDO Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 21, 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 21, 2026
19	Metriqe Solutions	Partial evidence	Irving, TX, United StatesHQ checked Sep 21, 2026	201-500	571 contacts →
	Partial evidence “Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Source: RevenueBase Database · checked Sep 21, 2026
20	Bennett Thrasher	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	201-500	558 contacts →
	Partial evidence “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Source: RevenueBase Database · checked Sep 21, 2026
21	BDO Esnad	Indirect evidence	Cairo, EgyptHQ checked Sep 21, 2026	1,001-5,000	508 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
22	BDO Sverige	Indirect evidence	Stockholm, SwedenHQ checked Sep 21, 2026	501-1,000	505 contacts →
	Indirect evidence “BDO – en global byrå med nöjdast kunder i revisionsbranschen BDO är en revisions- och rådgivningsbyrå som finns med dig hela vägen.” Source: RevenueBase Database · checked Sep 21, 2026
23	Sandmartin	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	501-1,000	486 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
24	NOW CFO	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 21, 2026	201-500	482 contacts →
	Indirect evidence “We specialize in providing full-service CFOs, controllers, and operational accountants to consult with our clients.” Source: RevenueBase Database · checked Sep 21, 2026
25	Outbooks	Strong evidence	Harrow, United KingdomHQ checked Sep 21, 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 21, 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: accounting outsourcing service providers. 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 accounting outsourcing service providers.
Partial evidence: Its own public description names part of accounting outsourcing service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting outsourcing service providers. 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 39,731 accounting outsourcing service providers worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 54,123 reachable decision-makers.

Free signup · no credit card

View the full list →

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

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 accounting outsourcing service providers, 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 accounting outsourcing service providers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “accounting outsourcing service providers”. 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 accounting outsourcing service providers), 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 accounting outsourcing service providers, 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, 54,123 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 21, 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.

Accounting outsourcing service providers by location

132 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 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 accounting outsourcing service providers, 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 accounting outsourcing service providers are there worldwide?

RevenueBase identified 39,731 accounting outsourcing service providers 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?

TOA Global, headquartered in Southport, tops this list with the largest team on record.

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 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 54,123 verified decision-maker contacts tracked across these 39,731 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 39,731 accounting outsourcing service providers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.