Company lists · Data refreshed August 2026

Top 25 Accounting and bookkeeping software companies based in the United Kingdom

Name: Accounting and bookkeeping software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 759 companies tracked

RevenueBase identified 759 accounting and bookkeeping software companies headquartered in the United Kingdom as of August 2026 and tracks 4,059 professional contacts across them, including 1,471 with verified work emails and 270 with mobile numbers. London is the largest hub.

This list covers accounting and bookkeeping software 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, how directly it supports the match, and when it was last checked. Data refreshed August 30, 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 Match evidence on every row Refreshed Aug 30, 2026 86% judged on-target in blind review

759Companies

4,059Contacts tracked

1,471Verified emails

270Mobile numbers

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The 25 largest accounting and bookkeeping software companies based in the United Kingdom

Ranked by team size

Top 25 of 759 accounting and bookkeeping software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting and bookkeeping software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	OutbooksStrong evidence	London, United Kingdom	201-500	475
	“Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Source: company website · checked Aug 30, 2026
2	DEXTPartial evidence	London, United Kingdom	201-500	388
	“Say hello to Dext, the advanced bookkeeping automation platform that eliminates much of the manual work that slows you down.” Source: company website · checked Aug 30, 2026
3	FreeagentIndirect evidence	Edinburgh, United Kingdom	51-200	324
	“One product.🤳 17 years.” Source: company website · checked Aug 30, 2026
4	BrightPartial evidence	Warwick, United Kingdom	201-500	275
	“Bright provides a suite of industry-leading software solutions designed for accountants and bookkeepers across the UK and Ireland.” Source: company website · checked Aug 30, 2026
5	CrunchStrong evidence	Hove, United Kingdom	51-200	124
	“We provide accounting software, services & solutions that have a big impact on small UK businesses.” Source: company website · checked Aug 30, 2026
6	TaxcalcPartial evidence	Wokingham, United Kingdom	51-200	105
	“The complete tax and accountancy practice software suite, powered by a single database.” Source: company website · checked Aug 30, 2026
7	DebitamStrong evidence	London, United Kingdom	51-200	103
	“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…” Source: company website · checked Aug 30, 2026
8	CapiumStrong evidence	London, United Kingdom	11-50	81
	“Capium is an online accounting & practice management software, tailored specifically for accounting practices.” Source: company website · checked Aug 30, 2026
9	NOMIPartial evidence	London, United Kingdom	11-50	61
	“Nomi is the ultimate cloud accounting suite built for accountants and bookkeepers.” Source: company website · checked Aug 30, 2026
10	Iris AccountancyStrong evidence	Slough, United Kingdom	1,001-5,000	44
	“IRIS is a long-established industry leader in accounting software and services for accountants and bookkeepers.” Source: company website · checked Aug 30, 2026
11	Pegasus SoftwareStrong evidence	Kettering, United Kingdom	51-200	41
	“Pegasus Software is one of the UK's leading suppliers of accounting software, cloud accounting software, business solutions and payroll software and has been for over 30 years.” Source: company website · checked Aug 30, 2026
12	Jump AccountingPartial evidence	London, United Kingdom	51-200	34
	“Accounting for Startups.” Source: company website · checked Aug 30, 2026
13	Acting OfficePartial evidence	London, United Kingdom	51-200	34
	“At Acting Office we deliver a fully integrated software platform designed for modern accountancy practices that want precision, efficiency and complete visibility across their…” Source: company website · checked Aug 30, 2026
14	Complete Accounting SolutionsStrong evidence	London, United Kingdom	11-50	33
	“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: company website · checked Aug 30, 2026
15	EMBERStrong evidence	London, United Kingdom	11-50	30
	“Ember is a specialist accounting and tax software platform and was acquired by Starling Bank in 2025.” Source: company website · checked Aug 30, 2026
16	Bookcheck LTDIndirect evidence	London, United Kingdom	51-200	29
	“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.” Source: company website · checked Aug 30, 2026
17	AdditionIndirect evidence	London, United Kingdom	11-50	27
	“At Addition Finance, we're revolutionising the landscape of business finance on a global scale.” Source: company website · checked Aug 30, 2026
18	Clever Accounts LTDIndirect evidence	Leeds, United Kingdom	11-50	27
	“More and more services have moved to an online or digital environment, as the easiest and best way of accessing them, allowing individuals and businesses greater control over…” Source: company website · checked Aug 30, 2026
19	Accnet Solutions LTDStrong evidence	London, United Kingdom	11-50	20
	“AccNet Solutions was formed in November 2010 by Damitha Ukuwela as a firm providing accounting and bookkeeping solutions.” Source: company website · checked Aug 30, 2026
20	MyworkpapersPartial evidence	Milton Keynes, United Kingdom	11-50	19
	“At MyWorkpapers we specialise in providing simple, but intelligent, cloud based software solutions to businesses, accountants, auditors and students.” Source: company website · checked Aug 30, 2026
21	Best AccountancyIndirect evidence	Plymouth, United Kingdom	11-50	17
	“Welcome to Best Accountancy, Plymouth.” Source: company website · checked Aug 30, 2026
22	OutserveIndirect evidence	Stafford, United Kingdom	11-50	15
	“Grow your profits and make your business better with Outserve.” Source: company website · checked Aug 30, 2026
23	Onpoint Accounting LTDStrong evidence	Edinburgh, United Kingdom	11-50	10
	“OnPoint Accounting Group, acquiring Accounting and Bookkeeping firms across the UK to help them grow and develop into client first firms that embrace the latest technology and…” Source: company website · checked Aug 30, 2026
24	Obox Accounting LTDPartial evidence	London, United Kingdom	11-50	10
	“OBOX ACCOUNTING LTD is a consumer services company based out of UNIT 8 DOCK OFFICES SURREY QUAYS ROAD, LONDON, United Kingdom.” Source: company website · checked Aug 30, 2026
25	Liquid AccountsStrong evidence	Oldham, United Kingdom	11-50	8
	“One of the originators of cloud accounting in the UK, the multi-award winning Liquid Accounts is a leader in online accounting software for SME businesses, bookkeepers, and…” Source: company website · checked Aug 30, 2026

Showing 25 of 759 accounting and bookkeeping software companies based in the United Kingdom

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Accounting and bookkeeping software companies based in the United Kingdom at a glance

As of Aug 30, 2026

1-10Median size (employees)

LondonLargest hub · 134 HQs

270Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

628

11-50

51-200

201-500

1,001-5,000

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 accounting and bookkeeping software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “accounting and bookkeeping software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among accounting and bookkeeping software 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 an evidence 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, 1,471 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 August 30, 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.

Accounting and bookkeeping software companies by metro

Accounting and bookkeeping software companies in London134

Frequently asked

How many accounting and bookkeeping software companies are there based in the United Kingdom?

RevenueBase identified 759 accounting and bookkeeping software companies headquartered in the United Kingdom as of August 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 accounting and bookkeeping software companies?

London leads with 134 headquartered companies, followed by Bristol (17) and Manchester (16).

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 1,471 verified decision-maker contacts tracked across these 759 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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.