Company lists · Data refreshed September 2026

Top 25 Accountancy outsourcing services worldwide

Name: Accountancy outsourcing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 40,448 companies tracked

RevenueBase identified 40,448 accountancy outsourcing services worldwide as of September 2026 and tracks 267,254 professional contacts across them, including 56,398 with verified work emails. The United States is the largest market and London the largest hub.

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

40,448Companies

267,254Contacts tracked

56,398Verified emails

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The 25 largest accountancy outsourcing services worldwide

Ranked by team size

Top 25 of 40,448 accountancy outsourcing services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to accountancy outsourcing 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 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	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	10001+	2,231 contacts →
	Indirect 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	Partial evidence	Makati, PhilippinesHQ checked Sep 21, 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 21, 2026
6	SS Kothari Mehta & CO	Partial evidence	New Delhi, IndiaHQ checked Sep 21, 2026	501-1,000	957 contacts →
	Partial evidence “S S Kothari Mehta & Company (SSKM) is chartered accountant firm established in 1953 in Kolkata and later on expanded its base to New Delhi, Chandigarh & Mumbai as well.” Source: RevenueBase Database · checked Sep 21, 2026
7	Nangia & CO LLP	Indirect evidence	Delhi-ncr, IndiaHQ checked Sep 21, 2026	1,001-5,000	952 contacts →
	Indirect evidence “Nangia & Co LLP stands as a preeminent one of the top leading CA firm in India with a remarkable four-decade legacy of enriching the business landscape for an extensive clientele…” Source: RevenueBase Database · checked Sep 21, 2026
8	Kiran Foreign Trade KFT	Indirect evidence	Sas Nagar, IndiaHQ checked Sep 21, 2026	501-1,000	917 contacts →
	Indirect 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
9	Confiance Business Solutions INC	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	857 contacts →
	Indirect 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	T R Chadha & CO LLP	Indirect evidence	Gurugram, IndiaHQ checked Sep 21, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Established in May 1946 by Late Mr.” Source: RevenueBase Database · checked Sep 21, 2026
11	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
12	IQ Backoffice	Partial evidence	Manila, PhilippinesHQ checked Sep 21, 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 21, 2026
13	Pacific Group Of Companies	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	810 contacts →
	Indirect 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
14	CA Firm In India	Partial evidence	Rohini, IndiaHQ checked Sep 21, 2026	n/a	798 contacts →
	Partial evidence “D N A & Co.\| Chartered Accountants” Source: RevenueBase Database · checked Sep 21, 2026
15	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
16	Haysmac	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	655 contacts →
	Partial evidence “HaysMac is an award‑winning accountancy, tax and advisory firm, known for delivering expert, partner‑led advice to ambitious organisations and individuals.” Source: RevenueBase Database · checked Sep 21, 2026
17	KMK	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	628 contacts →
	Indirect 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
18	Guru & Jana	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	201-500	621 contacts →
	Indirect evidence “Guru & Jana (GJ) a CA firm in Bangalore based on the philosophy - “Earn, we will & should, but with dignity, joy & trust”, specializes in India Entry, Audit & Assurance…” Source: RevenueBase Database · checked Sep 21, 2026
19	BDO Luxembourg	Partial evidence	LuxembourgHQ checked Sep 21, 2026	501-1,000	600 contacts →
	Partial evidence “BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.” Source: RevenueBase Database · checked Sep 21, 2026
20	Talati And Talati LLP Chartered Accountants	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	201-500	578 contacts →
	Indirect evidence “Talati & Talati LLP is a full-service accounting, tax, financial, and management advisory firm.” Source: RevenueBase Database · checked Sep 21, 2026
21	Metriqe Solutions	Indirect evidence	Irving, TX, United StatesHQ checked Sep 21, 2026	201-500	571 contacts →
	Indirect evidence “Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Source: RevenueBase Database · checked Sep 21, 2026
22	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
23	Countus	Partial evidence	Zwolle, NetherlandsHQ checked Sep 21, 2026	501-1,000	526 contacts →
	Partial evidence “Countus is een accountants- en adviesorganisatie die voor haar klanten, medewerkers en stakeholders streeft naar duurzaam succes.” Source: RevenueBase Database · checked Sep 21, 2026
24	K C Mehta & CO LLP	Indirect evidence	Vadodara, IndiaHQ checked Sep 21, 2026	201-500	504 contacts →
	Indirect evidence “K C Mehta & Co LLP (KCM) is a team of passionate professionals.” Source: RevenueBase Database · checked Sep 21, 2026
25	NOW CFO	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 21, 2026	201-500	482 contacts →
	Partial evidence “We specialize in providing full-service CFOs, controllers, and operational accountants to consult with our clients.” 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: accountancy outsourcing 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 accountancy outsourcing services.
Partial evidence: Its own public description names part of accountancy outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accountancy outsourcing 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 40,448 accountancy outsourcing services worldwide

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Accountancy outsourcing services worldwide at a glance

As of Sep 21, 2026

21.1%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

28,704

11-50

9,471

51-200

1,597

201-500

308

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 accountancy outsourcing 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 accountancy outsourcing services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “accountancy outsourcing 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 accountancy outsourcing 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 accountancy outsourcing 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, 56,398 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.

Accountancy outsourcing services by location

143 lists · largest first

Every Accountancy outsourcing 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 accountancy outsourcing 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 accountancy outsourcing services are there worldwide?

RevenueBase identified 40,448 accountancy outsourcing 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 accountancy outsourcing services?

The United States leads with 7,723 companies, followed by the United Kingdom (4,329) and India (4,288). Every accountancy outsourcing services list by country and city is linked on this page.

Which city has the most accountancy outsourcing services?

London leads with 825 headquartered companies, followed by Sao Paulo (701) and Ahmedabad (414).

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 56,398 verified decision-maker contacts tracked across these 40,448 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.