Company lists · Data refreshed September 2026

Top 25 Back office accounting firms worldwide

RevenueBase identified 40,151 company matches for back office accounting firms worldwide as of September 2026 and tracks 206,198 professional contacts across them, including 46,670 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for back office accounting firms 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 back office accounting firms 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
40,151Companies
206,198Contacts tracked
46,670Verified emails
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The 25 largest back office accounting firms worldwide

Ranked by team size
Top 25 of 40,151 company matches for back office accounting firms 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 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
8Exact matchUnited StatesHQ recorded Sep 27, 20261,001-5,000627 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchSan Fernando, PhilippinesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
10Exact 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
11Exact 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
12Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact 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
16Exact 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
17Exact 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
18Exact 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
19Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-500379 contacts →

Exact match

“Welcome to the new era of accountancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchAlphen Aan Den Rijn, NetherlandsHQ recorded Sep 27, 2026n/a377 contacts →

Exact match

“Tidak in Alphen aan den Rijn is het administratiekantoor voor startende ondernemers, zzp'ers, mkb en particulieren.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026201-500366 contacts →

Exact match

“At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchSterling, VA, United StatesHQ recorded Sep 27, 2026201-500347 contacts →

Exact match

“Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchBudapest, HungaryHQ recorded Sep 27, 2026201-500328 contacts →

Exact match

“Process Solutions (PS) is a group providing Business Process Outsourcing services, operating an independent accounting business in the Central European region.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000322 contacts →

Exact match

“At SKS, we pride ourselves on being different.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchGoiânia, BrazilHQ recorded Sep 27, 2026201-500320 contacts →

Exact match

“Movidos pela alta performance, resultados financeiros, contábeis e operacionais excepcionais para nossos clientes, a Alianzo é feita por pessoas.”

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

Showing 25 of 40,151 back office accounting firms worldwide

See the full list, filter by size, metro and specialty, and access 46,670 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Back office accounting firms worldwide at a glance

As of Sep 27, 2026
22.6%Verified-email coverage
5.1Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
31,002
11-50
7,594
51-200
974
201-500
189
501-1,000
34
1,001-5,000
38
5,001-10,000
1
10001+
5

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 back office accounting firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “back office accounting firms” 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 46,670 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.

Back office accounting firms by location

135 lists · largest first

Every Back office accounting firms 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 “back office accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many back office accounting firms are there worldwide?

RevenueBase identified 40,151 company matches for back office accounting firms 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 back office accounting firms?

The United States leads with 10,898 companies, followed by the United Kingdom (3,714) and Brazil (3,607). Every back office accounting firms list by country and city is linked on this page.

Which city has the most back office accounting firms?

London leads with 667 company records, followed by Sao Paulo (546) and Ahmedabad (244).

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 46,670 professional contacts with verified work emails tracked across these 40,151 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.