Company lists · Data refreshed November 2026

Top 25 Bookkeeping software implementation firms based in the United Kingdom

Name: Bookkeeping software implementation firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 451 companies tracked

RevenueBase identified 451 company matches for bookkeeping software implementation firms associated with the United Kingdom as of November 2026 and tracks 2,809 professional contacts across them, including 674 with verified work emails. London is the largest hub.

This list covers company matches for bookkeeping software implementation firms 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 5, 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 5, 2026 How this list was built

451Companies

2,809Contacts tracked

674Verified emails

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The 25 largest bookkeeping software implementation firms based in the United Kingdom

Ranked by team size

Top 25 of 451 company matches for bookkeeping software implementation firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 Nov 5, 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 5, 2026 · View company records in RevenueBase
2	Adroit Accountax LTD	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	52 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 · Nov 5, 2026 · View company records in RevenueBase
3	Iris Accountancy	Exact match	Slough, United KingdomHQ recorded Nov 5, 2026	1,001-5,000	43 contacts →
	Exact match “IRIS is a long-established industry leader in accounting software and services for accountants and bookkeepers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Bookcheck LTD	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	32 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 · Nov 5, 2026 · View company records in RevenueBase
5	Jump Accounting	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	30 contacts →
	Exact match “Accounting for Startups.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Accounts ETC	Exact match	Cirencester, United KingdomHQ recorded Nov 5, 2026	1-10	30 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 · Nov 5, 2026 · View company records in RevenueBase
7	Ookkee	Exact match	Poole, United KingdomHQ recorded Nov 5, 2026	11-50	21 contacts →
	Exact match “At Ookkee we are aiming to get business owners back in touch with the numbers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Affotax	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	21 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 · Nov 5, 2026 · View company records in RevenueBase
9	UWM Accountants	Exact match	Leeds, United KingdomHQ recorded Nov 5, 2026	11-50	19 contacts →
	Exact match “Leeds cloud accountants that care.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Northern Tonic	Exact match	York, United KingdomHQ recorded Nov 5, 2026	11-50	15 contacts →
	Exact match “Our ethos is to provide the accounting and bookkeeping that your company needs using the best technology available.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Jones & Partners	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “At Jones & Partners we’re a business ally for our clients.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Accord	Exact match	Edenbridge, United KingdomHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “Finance teams come to us when their finance system needs to support more complex reporting, approvals, workflows or business structures.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	BM Connect Limited	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	13 contacts →
	Exact match “As specialist providers of outsourced bookkeeping, management accounts and payroll solutions, we work with clients spanning a range of sectors across the various stages of the…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Spondoo Accountants UK	Exact match	Haslemere, United KingdomHQ recorded Nov 5, 2026	11-50	13 contacts →
	Exact match “Spondoo is made up of a team of Chartered and Certified Accountants and bookkeepers, supported by our in-house software developers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	The Counting House	Exact match	Selby, United KingdomHQ recorded Nov 5, 2026	1-10	13 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Yorkshire Accountancy Limited	Exact match	Hull, United KingdomHQ recorded Nov 5, 2026	11-50	12 contacts →
	Exact match “Small professional firm of accountants.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Cheylesmore Chartered Accountants	Exact match	Coventry, United KingdomHQ recorded Nov 5, 2026	1-10	12 contacts →
	Exact match “We will take the stress out of accounts, tax and bookkeeping so that you have time to work on you and your business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	engager.app	Exact match	Wokingham, United KingdomHQ recorded Nov 5, 2026	1-10	12 contacts →
	Exact match “Transform Your Practice with the award winning Engager.app.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Inform Accounting	Exact match	Sutton Coldfield, United KingdomHQ recorded Nov 5, 2026	11-50	11 contacts →
	Exact match “Centrally located in Sutton Coldfield, Inform Accounting aren’t just your typical accountants.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	IAN J Brown CO	Exact match	Dunbar, United KingdomHQ recorded Nov 5, 2026	11-50	10 contacts →
	Exact match “HMRC have recently introduced a quality review system of accounting records and this could lead to penalties for poor record keeping.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Solutions 4 Caterers	Exact match	Farnborough, United KingdomHQ recorded Nov 5, 2026	11-50	10 contacts →
	Exact match “Part of the Hospitality Solutions Group, we pride ourselves with offering highly skilled and efficient book keeping services to the hospitality industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Steven Burton & CO Limited	Exact match	Earls Colne, United KingdomHQ recorded Nov 5, 2026	1-10	10 contacts →
	Exact match “At Steven Burton & Co, we know how busy running a business can be.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Blue Matrix	Exact match	Guildford, United KingdomHQ recorded Nov 5, 2026	1-10	10 contacts →
	Exact match “Blue Matrix Business Services provides Accounting and Bookkeeping services that are Professional, Friendly and Reliable.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	NO Worries Company Services LTD	Exact match	Esher, United KingdomHQ recorded Nov 5, 2026	11-50	9 contacts →
	Exact match “Accountants for freelancers, self-employed, landlords, partnerships, individuals and SMEs, specialising in contractors since 2005.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	The Modern Firm	Exact match	Cheltenham, United KingdomHQ recorded Nov 5, 2026	11-50	9 contacts →
	Exact match “We take the headache out of process automation, resourcing, and operational efficiency for modern accounting firms.” Recorded in the RevenueBase company graph · Nov 5, 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 “bookkeeping software implementation firms”. 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 451 bookkeeping software implementation firms based in the United Kingdom

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Bookkeeping software implementation firms based in the United Kingdom at a glance

As of Nov 5, 2026

24.0%Verified-email coverage

6.2Average contacts per company

1-10Median size (employees)

16.6%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

374

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 451 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 software implementation firms” 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 674 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 5, 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.

Bookkeeping software implementation firms by metro

Bookkeeping software implementation firms in London75

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 software implementation firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many bookkeeping software implementation firms are there based in the United Kingdom?

RevenueBase identified 451 company matches for bookkeeping software implementation firms 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?

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

Which city has the most bookkeeping software implementation firms?

London leads with 75 company records, followed by Manchester (9) and Bristol (8).

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 674 professional contacts with verified work emails tracked across these 451 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 5, 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.