Company lists · Data refreshed September 2026

Top 25 Accounting process automation companies based in London, United Kingdom

Name: Accounting process automation companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 67 companies tracked

RevenueBase identified 67 accounting process automation companies headquartered in London, United Kingdom as of September 2026 and tracks 1,499 professional contacts across them, including 689 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers accounting process automation companies headquartered in London, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

67Companies

1,499Contacts tracked

689Verified emails

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The 25 largest accounting process automation companies based in London, United Kingdom

Ranked by team size

Top 25 of 67 accounting process automation companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to accounting process automation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DEXT	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	201-500	381 contacts →
	Partial evidence “Say hello to Dext, the advanced bookkeeping automation platform that eliminates much of the manual work that slows you down.” Source: RevenueBase Database · checked Sep 30, 2026
2	Aptitude Software	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	501-1,000	304 contacts →
	Indirect evidence “Here at Aptitude, we provide software solutions to enable deliver fully autonomous finance so our customers can drive growth, efficiency and sustainability.” Source: RevenueBase Database · checked Sep 30, 2026
3	ARKK	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	103 contacts →
	Partial evidence “ARKK began amid the 2009 financial crisis with a vision that technology and automation could enhance the finance function.” Source: RevenueBase Database · checked Sep 30, 2026
4	kpi.com	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	87 contacts →
	Partial evidence “KPI is an all-in-one business solution providing: Accounting, Payroll, Sales, Human Resources, Project Management, Report and Document applications all in one platform according…” Source: RevenueBase Database · checked Sep 30, 2026
5	LIGHT	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	56 contacts →
	Indirect evidence “Light is the new way to run multinational finances for modern technology companies.” Source: RevenueBase Database · checked Sep 30, 2026
6	MIMO	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	52 contacts →
	Strong evidence “Mimo fixes accounting delivery by automating repetitive work and removing the admin that slows firms down, so accountants can focus on advisory and clients can get clarity when it…” Source: RevenueBase Database · checked Sep 30, 2026
7	Equisys	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	37 contacts →
	Partial evidence “Equisys produce Zetadocs: AP automation, expense management and document management solutions for Microsoft Dynamics 365 Business Central (with expense management available for…” Source: RevenueBase Database · checked Sep 30, 2026
8	Acting Office	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	35 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 30, 2026
9	Kolleno	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	34 contacts →
	Indirect evidence “Kolleno is a financial operations platform that brings together receivables, payments and reconciliation - all in one place.” Source: RevenueBase Database · checked Sep 30, 2026
10	EMBER	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	32 contacts →
	Partial evidence “Ember is a specialist accounting and tax software platform and was acquired by Starling Bank in 2025.” Source: RevenueBase Database · checked Sep 30, 2026
11	Addition	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	27 contacts →
	Indirect evidence “At Addition Finance, we're revolutionising the landscape of business finance on a global scale.” Source: RevenueBase Database · checked Sep 30, 2026
12	Aqilla	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	26 contacts →
	Partial evidence “Cloud-native finance and accounting software for multi-entity and multi-currency organisations.” Source: RevenueBase Database · checked Sep 30, 2026
13	ADSUM	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	24 contacts →
	Partial evidence “Adsum builds AI agents that run core accounting workflows for UK practices.” Source: RevenueBase Database · checked Sep 30, 2026
14	Stratas	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	23 contacts →
	Strong evidence “Stratas helps businesses cut manual admin by automating the document-driven processes that slow down finance, procurement, and compliance teams - from AP and supplier onboarding…” Source: RevenueBase Database · checked Sep 30, 2026
15	Zmartly	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	18 contacts →
	Partial evidence “What would your ideal accounting service give you?” Source: RevenueBase Database · checked Sep 30, 2026
16	Mayday	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	16 contacts →
	Partial evidence “Mayday mends month end for in-house finance teams at complex businesses scaling with Xero or Quickbooks Online as their core accounting system, including those managing multiple…” Source: RevenueBase Database · checked Sep 30, 2026
17	Jenesys AI	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “Jenesys closed in March 2026.” Source: RevenueBase Database · checked Sep 30, 2026
18	Finance BOX	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “You didn't start your business to do paperwork, receipt filing and number crunching - no one does (ok.we did).” Source: RevenueBase Database · checked Sep 30, 2026
19	Fiskl.ai The Accounting Intelligence Platform	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	14 contacts →
	Partial evidence “Fiskl is AI-native accounting for SMEs that need their numbers to stay accurate as the business runs.” Source: RevenueBase Database · checked Sep 30, 2026
20	Hibooks	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “At hibooks, we believe that the true potential of any business lies in the ability to focus on its core vision without being bogged down by the intricacies of financial management.” Source: RevenueBase Database · checked Sep 30, 2026
21	Datamolino	Partial evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	11 contacts →
	Partial evidence “Datamolino removes the pain of manual data entry for accountants, bookkeepers and SMEs by automatically capturing data including line items from invoices, bills, receipts, and…” Source: RevenueBase Database · checked Sep 30, 2026
22	Technology Business Partners	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	11 contacts →
	Strong evidence “We offer process, system and data automation expertise, solely specialising in delivery of Point of Sale (POS) to ERP integrations for the Entertainment, Hospitality and Retail…” Source: RevenueBase Database · checked Sep 30, 2026
23	Appian UK	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	n/a	10 contacts →
	Strong evidence “Appian provides process automation.” Source: RevenueBase Database · checked Sep 30, 2026
24	Kanbina	Strong evidence	London, United KingdomHQ checked Sep 30, 2026	51-200	9 contacts →
	Strong evidence “Kanbina is an AI software company focused on automating processes, decisions and fraud checks in Finance and Accounting.” Source: RevenueBase Database · checked Sep 30, 2026
25	Accountagility	Indirect evidence	London, United KingdomHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Accountagility is a fast growing business offering a range of solutions specifically designed to meet the demanding and exacting standards required by best-in-class Finance…” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: accounting process automation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names accounting process automation companies.
Partial evidence: Its own public description names part of accounting process automation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting process automation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 67 accounting process automation companies based in London, United Kingdom

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Accounting process automation companies based in London, United Kingdom at a glance

As of Sep 30, 2026

46.0%Verified-email coverage

22.4Average contacts per company

11-50Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 67 companies.

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 process automation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “accounting process automation companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names accounting process automation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among accounting process automation companies, and records with no verified work email. Companies headquartered outside London 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 its RevenueBase Smart Search 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, 689 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 September 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names accounting process automation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many accounting process automation companies are there based in London, United Kingdom?

RevenueBase identified 67 accounting process automation companies headquartered in London, United Kingdom as of September 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?

DEXT, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most accounting process automation companies?

London leads the United Kingdom with 67 headquartered companies, followed by Birmingham (6) and Manchester (4).

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 689 verified decision-maker contacts tracked across these 67 companies.

How current is this list?

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