Company lists · Data refreshed September 2026

Top 25 Financial statement preparation outsourcing companies based in the United Kingdom

Name: Financial statement preparation outsourcing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 753 companies tracked

RevenueBase identified 753 financial statement preparation outsourcing companies headquartered in the United Kingdom as of September 2026 and tracks 3,510 professional contacts across them, including 844 with verified work emails. London is the largest hub.

This list covers financial statement preparation outsourcing companies headquartered in the United Kingdom, 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 28, 2026.

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 28, 2026 86% judged on-target in blind review

753Companies

3,510Contacts tracked

844Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest financial statement preparation outsourcing companies based in the United Kingdom

Ranked by team size

Top 25 of 753 financial statement preparation outsourcing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to financial statement preparation 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	Outbooks	Partial evidence	Harrow, United KingdomHQ checked Sep 28, 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 28, 2026
2	Rayner Essex LLP	Indirect evidence	St Albans, United KingdomHQ checked Sep 28, 2026	51-200	98 contacts →
	Indirect evidence “At Rayner Essex, we believe your accountant should do a lot more than just report on how your business is doing - he or she should help you identify opportunities to improve your…” Source: RevenueBase Database · checked Sep 28, 2026
3	DSL Accounting	Indirect evidence	Leamington Spa, United KingdomHQ checked Sep 28, 2026	n/a	54 contacts →
	Indirect evidence “DSL is one of the UK's leading small business accountancy firms, helping businesses grow since 1997.” Source: RevenueBase Database · checked Sep 28, 2026
4	Artifin Accountants	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	53 contacts →
	Indirect evidence “At Artifin Accountants we strive to provide a more open experience of accounting services for business owners.” Source: RevenueBase Database · checked Sep 28, 2026
5	We'll Mind Your OWN Business LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	44 contacts →
	Indirect evidence “In business we grow, we develop, and we change, ensure you are working with an accountancy firm that will see and understand your brand and your goals.” Source: RevenueBase Database · checked Sep 28, 2026
6	PSB Accountants Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “At PSB Accountants, we put your goals and aspirations first.” Source: RevenueBase Database · checked Sep 28, 2026
7	Complete Accounting Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Complete Accounting Solutions is a firm of dedicated individuals focussed on providing small and growing companies with support on the accounts and bookkeeping activities of their…” Source: RevenueBase Database · checked Sep 28, 2026
8	BEANY	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	32 contacts →
	Indirect evidence “Beany are accountants for ambitious businesses, delivering big firm expertise without the big cost.” Source: RevenueBase Database · checked Sep 28, 2026
9	Accounts ETC	Indirect evidence	Cirencester, United KingdomHQ checked Sep 28, 2026	1-10	30 contacts →
	Indirect evidence “We found that there was often a breakdown in service between your bookkeeper and your accountant and that more often than not the accountant was spending a majority of their time…” Source: RevenueBase Database · checked Sep 28, 2026
10	accountables.com	Partial evidence	Glasgow City, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “At Accountables, we manage the finance function for growing businesses across the US and UK, helping founders and CEOs make informed decisions with real-time financial insights.” Source: RevenueBase Database · checked Sep 28, 2026
11	Accnet Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “AccNet Solutions was formed in November 2010 by Damitha Ukuwela as a firm providing accounting and bookkeeping solutions.” Source: RevenueBase Database · checked Sep 28, 2026
12	PSF Accounting	Indirect evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	1-10	21 contacts →
	Indirect evidence “We are a small accountancy firm with offices in Cambridge and Stamford.” Source: RevenueBase Database · checked Sep 28, 2026
13	Adams Moore Accountants	Indirect evidence	Tamworth, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “As experienced accountants and business advisers with forward-thinking attitudes and a passion for achieving your business goals, we offer a personalised service akin to you…” Source: RevenueBase Database · checked Sep 28, 2026
14	3e's Accountants Group	Partial evidence	Harrow, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “Established in 2006, 3ES Accountants Ltd is a Harrow-based accountancy firm offering a myriad of accounting and financial services to businesses of all types.” Source: RevenueBase Database · checked Sep 28, 2026
15	Ookkee	Indirect evidence	Poole, United KingdomHQ checked Sep 28, 2026	1-10	18 contacts →
	Indirect evidence “At Ookkee we are aiming to get business owners back in touch with the numbers.” Source: RevenueBase Database · checked Sep 28, 2026
16	E-Accountants Limited	Partial evidence	Richmond, United KingdomHQ checked Sep 28, 2026	1-10	17 contacts →
	Partial evidence “We give you beautiful figures and help you achieve your financial goals.” Source: RevenueBase Database · checked Sep 28, 2026
17	CWF & Partners	Indirect evidence	Croydon, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “CWF & Partners Ltd is an accounting firm based at Freedman House, Christopher Wren Yard, 117 High Street, CROYDON, United Kingdom.” Source: RevenueBase Database · checked Sep 28, 2026
18	Northern Tonic	Indirect evidence	York, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Our ethos is to provide the accounting and bookkeeping that your company needs using the best technology available.” Source: RevenueBase Database · checked Sep 28, 2026
19	Hewitt Card Chartered Certified Accountants	Indirect evidence	Mansfield, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “We want to improve your business and help in areas that you probably didn't expect from accountants.” Source: RevenueBase Database · checked Sep 28, 2026
20	Excelsious	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Excelsious provides accounting, bookkeeping and finance function outsourcing services to accountancy firms and small to medium enterprises.” Source: RevenueBase Database · checked Sep 28, 2026
21	Clearcut Outsourcing UK	Partial evidence	Manchester, United KingdomHQ checked Sep 28, 2026	201-500	13 contacts →
	Partial evidence “Our mission at Clearcut Outsourcing is to provide exceptional accountancy outsourcing services to accountancy firms of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
22	Brook Financial Management Limited	Partial evidence	Ilminster, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “We are an award winning team of accounting professionals who specialise in all areas of financial management from bookkeeping, payroll and VAT returns through to management…” Source: RevenueBase Database · checked Sep 28, 2026
23	Leigh Carr	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Quite simply, we are committed to helping you grow your business and improve your bottom line.” Source: RevenueBase Database · checked Sep 28, 2026
24	Sakura Business Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “We are Entrepreneur & SME Accountants and Business Advisors, and help our Clients with how to - make the RIGHT decision(s) at the RIGHT time on their business with up to date…” Source: RevenueBase Database · checked Sep 28, 2026
25	BCA Accountants And Business Advisors	Indirect evidence	Hull, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “From the decision to start up, the development of strategic options and planning, the implementation of control & performance measurement systems, and profit distribution each…” Source: RevenueBase Database · checked Sep 28, 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: financial statement preparation 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 financial statement preparation outsourcing companies.
Partial evidence: Its own public description names part of financial statement preparation outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name financial statement preparation 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 753 financial statement preparation outsourcing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 844 reachable decision-makers.

Free signup · no credit card

View the full list →

Financial statement preparation outsourcing companies based in the United Kingdom at a glance

As of Sep 28, 2026

24.0%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

20.3%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

635

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 753 companies.

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 financial statement preparation 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “financial statement preparation 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 financial statement preparation 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 financial statement preparation outsourcing companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
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, 844 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 28, 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.

Financial statement preparation outsourcing companies by metro

Financial statement preparation outsourcing companies in London153

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 financial statement preparation 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 financial statement preparation outsourcing companies are there based in the United Kingdom?

RevenueBase identified 753 financial statement preparation outsourcing companies headquartered in the United Kingdom 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 city has the most financial statement preparation outsourcing companies?

London leads with 153 headquartered companies, followed by Bristol (14) and Manchester (13).

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 844 verified decision-maker contacts tracked across these 753 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 753 financial statement preparation outsourcing companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Financial statement preparation outsourcing companies by geography

Browse the directory

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.