Company lists · Data refreshed October 2026

Top 25 International bookkeeping services based in the United Kingdom

Name: International bookkeeping services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 2,663 companies tracked

RevenueBase identified 2,663 company matches for international bookkeeping services associated with the United Kingdom as of October 2026 and tracks 14,222 professional contacts across them, including 2,772 with verified work emails. London is the largest hub.

This list covers company matches for international bookkeeping services 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 October 22, 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 Oct 22, 2026 How this list was built

2,663Companies

14,222Contacts tracked

2,772Verified emails

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The 25 largest international bookkeeping services based in the United Kingdom

Ranked by team size

Top 25 of 2,663 company matches for international bookkeeping services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Outbooks	Exact match	Harrow, United KingdomHQ recorded Oct 22, 2026	201-500	478 contacts →
	Exact match “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	Burgess Hodgson	Exact match	Canterbury, United KingdomHQ recorded Oct 22, 2026	51-200	154 contacts →
	Exact match “Burgess Hodgson are a Kent based accountancy firm with the skills and expertise to rival any other accountancy firm in the UK.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3	HSJ Accountants, Business & TAX Advisors	Exact match	Newport, United KingdomHQ recorded Oct 22, 2026	51-200	142 contacts →
	Exact match “Award winning accountants & tax advisors based in Newport, South Wales.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4	SJD Accountancy	Exact match	Hemel Hempstead, United KingdomHQ recorded Oct 22, 2026	501-1,000	108 contacts →
	Exact match “SJD is now Caroola Accountancy!” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	Rayner Essex LLP	Exact match	St Albans, United KingdomHQ recorded Oct 22, 2026	51-200	104 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 · Oct 22, 2026 · View company records in RevenueBase
6	RDP Newmans LLP	Exact match	Harrow, United KingdomHQ recorded Oct 22, 2026	51-200	65 contacts →
	Exact match “Since 1962 RDP Newmans have been providing businesses with accountancy and taxation services, which are tailored to help our clients achieve their financial goals.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7	Affinity Associates Limited	Exact match	Wembley, United KingdomHQ recorded Oct 22, 2026	201-500	65 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 · Oct 22, 2026 · View company records in RevenueBase
8	Artifin Accountants	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	64 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 · Oct 22, 2026 · View company records in RevenueBase
9	Morris Crocker Chartered Accountants	Exact match	Portsmouth, United KingdomHQ recorded Oct 22, 2026	51-200	62 contacts →
	Exact match “If you’re looking for clear, practical financial advice tailored to your needs, you’re in the right place.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	DSL Accounting	Exact match	Leamington Spa, United KingdomHQ recorded Oct 22, 2026	n/a	55 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 · Oct 22, 2026 · View company records in RevenueBase
11	Lawrence Grant LLP	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	54 contacts →
	Exact match “We’ve been around for a while now, celebrating our 50th anniversary in 2020.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	Blinkhorns Accountants	Exact match	London, United KingdomHQ recorded Oct 22, 2026	51-200	53 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13	Adroit Accountax LTD	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	51 contacts →
	Exact match “Empowering Businesses to Thrive Through Financial Clarity \| Adroit Accountax We're a team of passionate and experienced accountants dedicated to your business success.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	Sheltons Group	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	50 contacts →
	Exact match “We provide accounting, business advice and assistance for businesses investing abroad.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	Diacron Group	Exact match	London, United KingdomHQ recorded Oct 22, 2026	51-200	44 contacts →
	Exact match “Diacron Group provides accounting, tax and corporate services.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16	PSB Accountants Limited	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	44 contacts →
	Exact match “At PSB Accountants, we put your goals and aspirations first.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17	Nucleus	Exact match	Newport, United KingdomHQ recorded Oct 22, 2026	51-200	40 contacts →
	Exact match “International expansion should not mean managing a different accountant, lawyer, payroll provider and HR adviser in every country.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18	Johnsons Chartered Accountants	Exact match	London, United KingdomHQ recorded Oct 22, 2026	51-200	38 contacts →
	Exact match “Now part of acumon UK the UK arm of acumon a fiercely independent global audit, accounting and tax firm.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	Glazers Chartered Accountants	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	38 contacts →
	Exact match “Glazers is a well-established and progressive firm of accountants based in North West London.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20	Complete Accounting Solutions	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	36 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 · Oct 22, 2026 · View company records in RevenueBase
21	ICB UK Institute Of Certified Bookkeepers	Exact match	London, United KingdomHQ recorded Oct 22, 2026	11-50	35 contacts →
	Exact match “We're a global body of the very best bookkeepers.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	Jump Accounting	Exact match	London, United KingdomHQ recorded Oct 22, 2026	51-200	34 contacts →
	Exact match “Accounting for Startups.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	Morris Owen	Exact match	Swindon, United KingdomHQ recorded Oct 22, 2026	51-200	32 contacts →
	Exact match “Morris Owen - chartered accountants, business advisers and tax advisers.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	Botham Accounting	Exact match	Nottingham, United KingdomHQ recorded Oct 22, 2026	11-50	29 contacts →
	Exact match “Botham Accounting are a forward thinking team of accountants that provide strategic accounting and tax advice to ambitious businesses.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	Ascendis	Exact match	Manchester, United KingdomHQ recorded Oct 22, 2026	11-50	29 contacts →
	Exact match “At Ascendis, we cover all matters financial.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “international bookkeeping services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,663 international bookkeeping services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,772 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International bookkeeping services based in the United Kingdom at a glance

As of Oct 22, 2026

19.5%Verified-email coverage

5.3Average contacts per company

1-10Median size (employees)

18.6%Largest-city concentration · London

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

2,177

11-50

390

51-200

201-500

501-1,000

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 2,663 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 “international bookkeeping services” 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 2,772 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 October 22, 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.

International bookkeeping services by metro

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

How many international bookkeeping services are there based in the United Kingdom?

RevenueBase identified 2,663 company matches for international bookkeeping services associated with the United Kingdom as of October 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 international bookkeeping services?

London leads with 494 company records, followed by Manchester (48) and Birmingham (33).

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 2,772 professional contacts with verified work emails tracked across these 2,663 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 October 22, 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.