Company lists · Data refreshed September 2026

Top 25 Fractional accounting services worldwide

RevenueBase identified 24,737 fractional accounting services worldwide as of September 2026 and tracks 95,120 professional contacts across them, including 23,199 with verified work emails. The United States is the largest market and London the largest hub.

This list covers fractional 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 fractional 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
24,737Companies
95,120Contacts tracked
23,199Verified emails
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The 25 largest fractional accounting services worldwide

Ranked by team size
Top 25 of 24,737 fractional 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 fractional 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceHarrow, United KingdomHQ checked Sep 19, 2026201-500477 contacts →

Partial evidence

“Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceHyderabad, IndiaHQ checked Sep 19, 20261,001-5,000477 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
3Indirect evidenceAlphen Aan Den Rijn, NetherlandsHQ checked Sep 19, 2026n/a377 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
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026201-500366 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceStapleford, United KingdomHQ checked Sep 19, 2026n/a296 contacts →

Partial evidence

Accounting services for sole traders and SME’s.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceHyderabad, IndiaHQ checked Sep 19, 2026201-500260 contacts →

Partial evidence

“At Oremus Corporate Services, we specialize in delivering top-notch Accounting and Bookkeeping, Secretarial Compliance, Payroll, Tax, HR, and Business Advisory Services.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceNew Delhi, IndiaHQ checked Sep 19, 2026201-500249 contacts →

Partial evidence

“Mercurius Advisory Services (MAS) provides comprehensive suite of accounting, bookkeeping and taxation services to small, medium and large enterprises.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 19, 202651-200249 contacts →

Indirect evidence

“The true performance of your business shouldn’t be a mystery.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceColumbus, PA, United StatesHQ checked Sep 19, 202651-200238 contacts →

Indirect evidence

“At FocusCFO, we work with small & midsized businesses that are often frustrated with how their business is performing, overwhelmed by the challenges of growth, and/or concerned…”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceGhaziabad, IndiaHQ checked Sep 19, 2026501-1,000195 contacts →

Partial evidence

“Aone is one of the leading global accounting, bookkeeping, tax and year end accounts preparation service provider in India.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202651-200181 contacts →

Partial evidence

“Attivo Partners is a full-service Finance and Accounting firm.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceFranceHQ checked Sep 19, 2026201-500172 contacts →

Indirect evidence

“We believe there is no set measure of success.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceJaipur, IndiaHQ checked Sep 19, 202651-200156 contacts →

Partial evidence

“Mindspace Outsourcing, established in 2007, and offers bookkeeping outsourcing and accounting services to individuals and small to medium-sized businesses in the United States…”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceAhmedabad, IndiaHQ checked Sep 19, 2026201-500151 contacts →

Partial evidence

“Meru Accounting is the Accounting firm running under the leadership of CA Rushabh Shah and CA Harnish Shah providing accounting and bookkeeping services across Australia, US…”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceHouston, PA, United StatesHQ checked Sep 19, 2026n/a149 contacts →

Partial evidence

Accounting Solutions provides a wide range of services to individuals and businesses in a variety of industries.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidencePraha 5, Czech RepublicHQ checked Sep 19, 2026201-500143 contacts →

Indirect evidence

“Pusťte účetnictví z hlavy.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceUnited StatesHQ checked Sep 19, 202651-200141 contacts →

Partial evidence

AccountingDepartment.com, LLC was formed in 2004 to providing full-charge bookkeeping and accounting services for the small to medium business market.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceCardiff, CA, United KingdomHQ checked Sep 19, 202651-200134 contacts →

Partial evidence

“Dark Horse CPAs is a leading CPA firm specializing in comprehensive tax and accounting advisory services tailored for small businesses.”

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceAthens, GreeceHQ checked Sep 19, 202651-200116 contacts →

Partial evidence

Accounting - Taxation - Business Consulting OUR COMPANY Following many years of activity, Fovera Prostasia S.A.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceDelaware, DE, United StatesHQ checked Sep 19, 2026501-1,000115 contacts →

Partial evidence

“Welcome to GLOCAL Accounting.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceNetherlandsHQ checked Sep 19, 2026n/a114 contacts →

Indirect evidence

“Werkzaamheden Op de volgende gebieden kunnen wij u adviseren, ondersteunen en/of werk uit handen nemen: financiële administratie, inclusief debiteuren/crediteurenbeheer…”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceMandaluyong, PhilippinesHQ checked Sep 19, 202651-200109 contacts →

Partial evidence

“CloudCFO is a tech-enabled accounting and finance services provider trusted by over 400 companies in the Philippines and abroad.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceDallas, TX, United StatesHQ checked Sep 19, 202651-200108 contacts →

Partial evidence

“CrystalVoxx offers a wide range of accounting and payroll services to suit diverse customer needs [Accounting & Payroll, EMR Integrated Transcription, Revenue Cycle Management,].”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceIfs, FranceHQ checked Sep 19, 202651-200101 contacts →

Indirect evidence

“Tacher Acogex est un cabinet d’expertise comptable aux services des entreprises.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceUnited KingdomHQ checked Sep 19, 2026n/a101 contacts →

Partial evidence

“Let us help you reduce the time you spend accounting and bookkeeping for your organisation giving you more time to run your business and enjoy life.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 24,737 fractional accounting services worldwide

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Fractional accounting services worldwide at a glance

As of Sep 19, 2026
24.4%Verified-email coverage
3.8Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
20,496
11-50
3,605
51-200
359
201-500
60
501-1,000
10
1,001-5,000
9
5,001-10,000
1
10001+
3

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 fractional 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 fractional accounting services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “fractional 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 fractional 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 fractional 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, 23,199 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.

Fractional accounting services by location

80 lists · largest first

Every Fractional 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 fractional 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 fractional accounting services are there worldwide?

RevenueBase identified 24,737 fractional 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?

Outbooks, headquartered in London, tops this list with the largest team on record.

Which country has the most fractional accounting services?

The United States leads with 8,389 companies, followed by the United Kingdom (1,988) and Canada (1,571). Every fractional accounting services list by country and city is linked on this page.

Which city has the most fractional accounting services?

London leads with 377 headquartered companies, followed by Sao Paulo (201) and New York (179).

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 23,199 verified decision-maker contacts tracked across these 24,737 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.