Company lists · Data refreshed September 2026

Top 25 Bookkeeping service providers based in the United Kingdom

RevenueBase identified 1,960 company matches for bookkeeping service providers associated with the United Kingdom as of September 2026 and tracks 7,008 professional contacts across them, including 1,808 with verified work emails. London is the largest hub.

This list covers company matches for bookkeeping service providers associated with the United Kingdom, 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 19, 2026.

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 19, 2026 How this list was built
1,960Companies
7,008Contacts tracked
1,808Verified emails
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The 25 largest bookkeeping service providers based in the United Kingdom

Ranked by team size
Top 25 of 1,960 company matches for bookkeeping service providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchHarrow, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
2Exact matchHemel Hempstead, United KingdomHQ recorded Sep 19, 2026501-1,000102 contacts →

Exact match

“SJD is now Caroola Accountancy!”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchSt Albans, United KingdomHQ recorded Sep 19, 202651-20098 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchWembley, United KingdomHQ recorded Sep 19, 2026201-50064 contacts →

Exact match

“Affinity Associates Limited is a leading accounting firm based in Wembley, London, UK, and is regulated and authorised for public practice by both the ICAEW (Institute of…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchLeamington Spa, United KingdomHQ recorded Sep 19, 2026n/a54 contacts →

Exact match

“DSL is one of the UK's leading small business accountancy firms, helping businesses grow since 1997.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5053 contacts →

Exact match

“At Artifin Accountants we strive to provide a more open experience of accounting services for business owners.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5044 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5042 contacts →

Exact match

“At PSB Accountants, we put your goals and aspirations first.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20035 contacts →

Exact match

“Accounting for Startups.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5033 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchHenley-on-thames, United KingdomHQ recorded Sep 19, 202611-5031 contacts →

Exact match

“Working with companies and business leaders, Verallo's experienced team quickly analyses each client's needs to deliver highly personalised business services that take a strategic…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchCirencester, United KingdomHQ recorded Sep 19, 20261-1030 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 19, 202651-20029 contacts →

Exact match

“Our clients rely on us to remove book-keeping hassle and improve their profitability by using our top quality financial reports based on professionally reconciled book-keeping.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchKelso, United KingdomHQ recorded Sep 19, 202651-20026 contacts →

Exact match

“We prepare accounts for all types of business, from sole traders to partnerships and limited companies.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“Simplified Online Accounting | Customized Bookkeeping | Expert Payroll Services Making Finances Easier: Welcome to AffoTax.com, where we're changing how small businesses handle…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5021 contacts →

Exact match

“AccNet Solutions was formed in November 2010 by Damitha Ukuwela as a firm providing accounting and bookkeeping solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchCambridge, United KingdomHQ recorded Sep 19, 20261-1021 contacts →

Exact match

“We are a small accountancy firm with offices in Cambridge and Stamford.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchTamworth, United KingdomHQ recorded Sep 19, 202611-5019 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchGloucester, United KingdomHQ recorded Sep 19, 202611-5019 contacts →

Exact match

“Outsourcing accounts is no longer just for big business.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchHarrow, United KingdomHQ recorded Sep 19, 202611-5018 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchWindsor, United KingdomHQ recorded Sep 19, 202611-5018 contacts →

Exact match

“For each and every client we create an individually tailored accountancy package.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchPoole, United KingdomHQ recorded Sep 19, 20261-1018 contacts →

Exact match

“At Ookkee we are aiming to get business owners back in touch with the numbers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5018 contacts →

Exact match

“Dirench & Co was founded in 2008 and has grown steadily over the past years to become a leading supplier of accountancy services in London, UK.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5017 contacts →

Exact match

“Boobooks offers expert accounting, tax, and business support services tailored for small businesses.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchPlymouth, United KingdomHQ recorded Sep 19, 202611-5017 contacts →

Exact match

“Welcome to Best Accountancy, Plymouth.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 1,960 bookkeeping service providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,808 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Bookkeeping service providers based in the United Kingdom at a glance

As of Sep 19, 2026
25.8%Verified-email coverage
3.6Average contacts per company
1-10Median size (employees)
14.8%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,734
11-50
175
51-200
18
201-500
7
501-1,000
1
1,001-5,000
1

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 1,960 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “bookkeeping service providers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,808 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 19, 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.

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 “bookkeeping service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many bookkeeping service providers are there based in the United Kingdom?

RevenueBase identified 1,960 company matches for bookkeeping service providers associated with the United Kingdom 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?

Outbooks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most bookkeeping service providers?

London leads with 290 company records, followed by Bristol (28) and Manchester (25).

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 1,808 professional contacts with verified work emails tracked across these 1,960 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 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 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.