Company lists · Data refreshed November 2026

Top 24 Outsourcing accountants based in the United Kingdom

Name: Outsourcing accountants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,168 companies tracked

RevenueBase identified 5,168 company matches for outsourcing accountants associated with the United Kingdom as of November 2026 and tracks 31,767 professional contacts across them, including 9,637 with verified work emails. London is the largest hub.

This list covers company matches for outsourcing accountants 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 November 6, 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 Nov 6, 2026 How this list was built

5,168Companies

31,767Contacts tracked

9,637Verified emails

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The 24 largest outsourcing accountants based in the United Kingdom

Ranked by team size

Top 24 of 5,168 company matches for outsourcing accountants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	AAB	Exact match	Uk And Ireland, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,267 contacts →
	Exact match “We provide services that help businesses at every stage of the lifecycle.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Outbooks	Exact match	Harrow, United KingdomHQ recorded Nov 6, 2026	201-500	490 contacts →
	Exact match “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Corient Business Solutions Limited	Exact match	Coventry, United KingdomHQ recorded Nov 6, 2026	501-1,000	460 contacts →
	Exact match “Corient is a specialist outsourced accounting and bookkeeping partner, built exclusively for UK accountancy practices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Gravita	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	412 contacts →
	Exact match “Welcome to the new era of accountancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	GI Outsourcing	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	327 contacts →
	Exact match “GI Outsourcing is a UK-based accountants outsourcing firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Looking For NEW Opportunities	Exact match	Stapleford, United KingdomHQ recorded Nov 6, 2026	n/a	299 contacts →
	Exact match “Accounting services for sole traders and SME’s.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Aims Accountants For Business	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	247 contacts →
	Exact match “AIMS Accountants for Business is the largest network of independent qualified accountants throughout the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Galloways Accounting	Exact match	Brighton, United KingdomHQ recorded Nov 6, 2026	201-500	203 contacts →
	Exact match “Galloways is the fastest growing accounting services firm in Sussex.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	SKS Business Services	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	184 contacts →
	Exact match “At SKS, we pride ourselves on being different.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Finance & Accounting For Business	Exact match	Rushden, United KingdomHQ recorded Nov 6, 2026	n/a	165 contacts →
	Exact match “For your business to succeed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Ormerod Rutter Chartered Accountants	Exact match	Droitwich, United KingdomHQ recorded Nov 6, 2026	51-200	154 contacts →
	Exact match “For 40 years, Ormerod Rutter have offered the specialist hands-on support that clients need to handle all of their tax, business and financial affairs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Burgess Hodgson	Exact match	Canterbury, United KingdomHQ recorded Nov 6, 2026	51-200	152 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 · Nov 6, 2026 · View company records in RevenueBase
13	HSJ Accountants, Business & TAX Advisors	Exact match	Newport, United KingdomHQ recorded Nov 6, 2026	51-200	146 contacts →
	Exact match “Award winning accountants & tax advisors based in Newport, South Wales.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Accounts And Legal	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	141 contacts →
	Exact match “Traditional accountants do a great job of the numbers, but that's often as far as the service goes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Debitam	Exact match	42-44 Bishopsgate, United KingdomHQ recorded Nov 6, 2026	51-200	113 contacts →
	Exact match “Online Accounting Service \| Bookkeeping \| Payroll \| Personal Tax Return Filing to HMRC \| Corporation Tax Filing \| HMRC ONLINE FILING: Our aim is to help small business owners` tax…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	SJD Accountancy	Exact match	Hemel Hempstead, United KingdomHQ recorded Nov 6, 2026	501-1,000	109 contacts →
	Exact match “SJD is now Caroola Accountancy!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Rayner Essex LLP	Exact match	St Albans, United KingdomHQ recorded Nov 6, 2026	51-200	104 contacts →
	Exact match “Rayner Essex is a progressive, client-focused firm of Chartered Accountants and business advisers, with offices in Central London and St Albans.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Azets Previously Tait Walker	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	104 contacts →
	Exact match “Azets can help you achieve your business ambitions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	More Than Accountants	Exact match	Bolton, United KingdomHQ recorded Nov 6, 2026	51-200	104 contacts →
	Exact match “More Than Accountants is an industry leader when it comes to cutting edge accountancy services and business growth, we utilise the latest technology to help us achieve both our…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Affinity Outsourcing Limited	Exact match	Wembley, United KingdomHQ recorded Nov 6, 2026	51-200	100 contacts →
	Exact match “Affinity Outsourcing is an accountancy outsourcing company that specialises in outsourcing for Accounting Practices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Paperchase Business Services LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	100 contacts →
	Exact match “Paperchase Business Services Ltd (PBSL) is a firm of accountants, taxation and business advisors based in South London.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Intelligent Outsourcing	Exact match	Tunbridge Wells, United KingdomHQ recorded Nov 6, 2026	51-200	90 contacts →
	Exact match “Intelligent Outsourcing (iO) is an offshoring company in the Philippines dedicated to supporting UK accounting practices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Base Practice Support LTD Baseline Practice Support Smc-Pvt LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	77 contacts →
	Exact match “Base Practice Support Ltd is the UK's fastest-growing Accountancy Practice Support company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Acenteus Accounting	Exact match	Plus X Innovation, United KingdomHQ recorded Nov 6, 2026	51-200	72 contacts →
	Exact match “Acenteus Accounting, legally known as Acenteus CCA Global Ltd is a UK-registered outsourced accounting and finance partner delivering secure, cloud-enabled support for…” Recorded in the RevenueBase company graph · Nov 6, 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 “outsourcing accountants”. 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 24 of 5,168 outsourcing accountants based in the United Kingdom

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Outsourcing accountants based in the United Kingdom at a glance

As of Nov 6, 2026

30.3%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

18.1%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,950

11-50

846

51-200

104

201-500

501-1,000

1,001-5,000

5,001-10,000

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 5,168 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 “outsourcing accountants” 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 9,637 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 November 6, 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.

Outsourcing accountants 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 “outsourcing accountants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourcing accountants are there based in the United Kingdom?

RevenueBase identified 5,168 company matches for outsourcing accountants associated with the United Kingdom as of November 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?

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

Which city has the most outsourcing accountants?

London leads with 935 company records, followed by Manchester (109) and Bristol (68).

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 9,637 professional contacts with verified work emails tracked across these 5,168 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 November 6, 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.