Company lists · Data refreshed September 2026

Top 25 Accounting back office outsourcing companies worldwide

Name: Accounting back office outsourcing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 25,781 companies tracked

RevenueBase identified 25,781 accounting back office outsourcing companies worldwide as of September 2026 and tracks 186,804 professional contacts across them, including 34,594 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers accounting back office outsourcing 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 21, 2026. Country and city lists for accounting back office outsourcing 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 21, 2026 86% judged on-target in blind review

25,781Companies

186,804Contacts tracked

34,594Verified emails

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The 25 largest accounting back office outsourcing companies worldwide

Ranked by team size

Top 25 of 25,781 accounting back office outsourcing companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to accounting back office outsourcing 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	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	SEBPO	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,237 contacts →
	Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 21, 2026
4	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
5	Invensis	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	1,001-5,000	995 contacts →
	Indirect evidence “At Invensis, we solve business inefficiencies.” Source: RevenueBase Database · checked Sep 21, 2026
6	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
7	Confiance Business Solutions INC	Strong evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	857 contacts →
	Strong 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
8	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
9	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
10	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
11	Grupo BC	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	712 contacts →
	Indirect evidence “Grupo BC es el líder en la externalización de procesos bancarios (BPO) tanto en el Sur de Europa como en Latinoamérica.” Source: RevenueBase Database · checked Sep 21, 2026
12	Data Entry Solution	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	n/a	676 contacts →
	Strong evidence “Data Entry Solution is one of the leading back office solution providers based in California.” Source: RevenueBase Database · checked Sep 21, 2026
13	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
14	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
15	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
16	Cameo Corporate Services	Partial evidence	Chennai, IndiaHQ checked Sep 21, 2026	201-500	527 contacts →
	Partial evidence “Cameo Corporate Services Limited is a Business Process Outsourcing firm headquartered in Chennai, India.” Source: RevenueBase Database · checked Sep 21, 2026
17	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
18	Crane Consulting And Outsourcing	Strong evidence	Boca Raton, FL, United StatesHQ checked Sep 21, 2026	501-1,000	496 contacts →
	Strong evidence “Crane Consulting & Outsourcing (CCO) is a global provider of back-office support services to a myriad of financial service organizations.” Source: RevenueBase Database · checked Sep 21, 2026
19	Gesnext	Partial evidence	San Isidro, PeruHQ checked Sep 21, 2026	501-1,000	488 contacts →
	Partial evidence “En GesNext, an IBM Company, nos especializamos en Business Process Outsourcing (BPO), con foco en Recursos Humanos, Contabilidad & Finanzas y Automatización.” Source: RevenueBase Database · checked Sep 21, 2026
20	Sandmartin	Partial evidence	Noida, IndiaHQ checked Sep 21, 2026	501-1,000	486 contacts →
	Partial 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
21	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
22	Share Microfin LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	477 contacts →
	Partial 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 21, 2026
23	Global FPO	Strong evidence	Noida, IndiaHQ checked Sep 21, 2026	501-1,000	474 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
24	Amicassa Process Solutions, INC	Partial evidence	Makati City, PhilippinesHQ checked Sep 21, 2026	201-500	457 contacts →
	Partial evidence “Amicassa Process Solutions, Inc.(AMICASSA), is a business process outsourcing company that provides after sales administration support to the Residential Business Group of Ayala…” Source: RevenueBase Database · checked Sep 21, 2026
25	OSOME	Indirect evidence	Central Business District, SingaporeHQ checked Sep 21, 2026	201-500	457 contacts →
	Indirect evidence “Expert accountants + simple software = financial admin, done.” 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 back office outsourcing 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 accounting back office outsourcing companies.
Partial evidence: Its own public description names part of accounting back office outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting back office outsourcing 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 25,781 accounting back office outsourcing companies worldwide

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Accounting back office outsourcing companies worldwide at a glance

As of Sep 21, 2026

18.5%Verified-email coverage

7.2Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

18,860

11-50

5,224

51-200

1,126

201-500

281

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 back office outsourcing 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 accounting back office outsourcing companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “accounting back office outsourcing 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 accounting back office outsourcing 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 accounting back office outsourcing 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, 34,594 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 back office outsourcing companies by location

108 lists · largest first

Every Accounting back office 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 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 back office outsourcing 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 accounting back office outsourcing companies are there worldwide?

RevenueBase identified 25,781 accounting back office outsourcing 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?

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

Which country has the most accounting back office outsourcing companies?

The United States leads with 6,816 companies, followed by Brazil (2,434) and the United Kingdom (1,749). Every accounting back office outsourcing companies list by country and city is linked on this page.

Which city has the most accounting back office outsourcing companies?

Sao Paulo leads with 444 headquartered companies, followed by London (349) and Ahmedabad (267).

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 34,594 verified decision-maker contacts tracked across these 25,781 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.

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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.