Company lists · Data refreshed September 2026

Top 25 Back office accounting services worldwide

Name: Back office accounting services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 30,459 companies tracked

RevenueBase identified 30,459 back office accounting services worldwide as of September 2026 and tracks 167,707 professional contacts across them, including 33,659 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers back office accounting services 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 19, 2026. Country and city lists for back office accounting services 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 19, 2026 86% judged on-target in blind review

30,459Companies

167,707Contacts tracked

33,659Verified emails

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The 25 largest back office accounting services worldwide

Ranked by team size

Top 25 of 30,459 back office accounting services worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to back office accounting services: 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 19, 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 19, 2026
2	Personiv	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 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 19, 2026
3	ASPIA	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	1,001-5,000	1,280 contacts →
	Indirect evidence “Aspia är Nordeuropas ledande affärspartner för företag som vill ta nästa steg.” Source: RevenueBase Database · checked Sep 19, 2026
4	D&v Philippines	Partial evidence	Makati, PhilippinesHQ checked Sep 19, 2026	1,001-5,000	1,021 contacts →
	Partial 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 19, 2026
5	Invensis	Indirect evidence	Bangalore, IndiaHQ checked Sep 19, 2026	1,001-5,000	995 contacts →
	Indirect evidence “At Invensis, we solve business inefficiencies.” Source: RevenueBase Database · checked Sep 19, 2026
6	B Consulting	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 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 19, 2026
7	Confiance Business Solutions INC	Strong evidence	Ahmedabad, IndiaHQ checked Sep 19, 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 19, 2026
8	Bernhoeft	Indirect evidence	Recife, BrazilHQ checked Sep 19, 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 19, 2026
9	IQ Backoffice	Partial evidence	Manila, PhilippinesHQ checked Sep 19, 2026	501-1,000	831 contacts →
	Partial 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 19, 2026
10	Data Entry Solution	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 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 19, 2026
11	KMK	Partial evidence	Ahmedabad, IndiaHQ checked Sep 19, 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 19, 2026
12	Metriqe Solutions	Partial evidence	Irving, TX, United StatesHQ checked Sep 19, 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 19, 2026
13	Infosync	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 19, 2026	501-1,000	525 contacts →
	Indirect evidence “In today's fast-paced business landscape, multi-unit companies demand more than just basic operations-they need expert guidance and cutting-edge technology to thrive.” Source: RevenueBase Database · checked Sep 19, 2026
14	Outbooks	Partial evidence	Harrow, United KingdomHQ checked Sep 19, 2026	201-500	477 contacts →
	Partial evidence “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Source: RevenueBase Database · checked Sep 19, 2026
15	Share Microfin LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 19, 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 19, 2026
16	Global FPO	Partial evidence	Noida, IndiaHQ checked Sep 19, 2026	501-1,000	474 contacts →
	Partial 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 19, 2026
17	OSOME	Indirect evidence	Central Business District, SingaporeHQ checked Sep 19, 2026	201-500	457 contacts →
	Indirect evidence “Expert accountants + simple software = financial admin, done.” Source: RevenueBase Database · checked Sep 19, 2026
18	Velan Info Services	Indirect evidence	Dover, DE, United StatesHQ checked Sep 19, 2026	201-500	447 contacts →
	Indirect evidence “Velan Info Services is a leading multidisciplinary service provider with its clients across the globe.” Source: RevenueBase Database · checked Sep 19, 2026
19	Supporting Strategies	Indirect evidence	Beverly, MA, United StatesHQ checked Sep 19, 2026	51-200	415 contacts →
	Indirect evidence “Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.” Source: RevenueBase Database · checked Sep 19, 2026
20	Escalon Business Services, India	Indirect evidence	Mohali, IndiaHQ checked Sep 19, 2026	201-500	415 contacts →
	Indirect evidence “Escalon’s one stop shop approach gives you a single touch point for everything you need to keep your company safe.” Source: RevenueBase Database · checked Sep 19, 2026
21	Administratiekantoor Tidak B.V	Indirect evidence	Alphen Aan Den Rijn, NetherlandsHQ checked Sep 19, 2026	n/a	377 contacts →
	Indirect evidence “Tidak in Alphen aan den Rijn is het administratiekantoor voor startende ondernemers, zzp'ers, mkb en particulieren.” Source: RevenueBase Database · checked Sep 19, 2026
22	Process Solutions	Partial evidence	Budapest, HungaryHQ checked Sep 19, 2026	201-500	328 contacts →
	Partial evidence “Process Solutions (PS) is a group providing Business Process Outsourcing services, operating an independent accounting business in the Central European region.” Source: RevenueBase Database · checked Sep 19, 2026
23	SKS Business Services	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	322 contacts →
	Indirect evidence “At SKS, we pride ourselves on being different.” Source: RevenueBase Database · checked Sep 19, 2026
24	Unison Globus	Partial evidence	Coral Springs, FL, United StatesHQ checked Sep 19, 2026	201-500	320 contacts →
	Partial evidence “Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.” Source: RevenueBase Database · checked Sep 19, 2026
25	BDO Solutions	Indirect evidence	Moka, MauritiusHQ checked Sep 19, 2026	501-1,000	310 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 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: back office accounting services. 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 back office accounting services.
Partial evidence: Its own public description names part of back office accounting services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name back office accounting services. 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 30,459 back office accounting services worldwide

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Back office accounting services worldwide at a glance

As of Sep 19, 2026

20.1%Verified-email coverage

5.5Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

23,662

11-50

5,576

51-200

754

201-500

157

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 back office accounting services, 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 back office accounting services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “back office accounting services”. 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 back office accounting services), 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 back office accounting services, 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, 33,659 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 19, 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.

Back office accounting services by location

96 lists · largest first

Every Back office accounting services 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 back office accounting services, 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 back office accounting services are there worldwide?

RevenueBase identified 30,459 back office accounting services 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 back office accounting services?

The United States leads with 8,484 companies, followed by Brazil (2,783) and the United Kingdom (2,119). Every back office accounting services list by country and city is linked on this page.

Which city has the most back office accounting services?

Sao Paulo leads with 439 headquartered companies, followed by London (407) and New York (181).

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 33,659 verified decision-maker contacts tracked across these 30,459 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 19, 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.