Company lists · Data refreshed September 2026

Top 25 SaaS companies based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 234 companies tracked

RevenueBase identified 234 SaaS companies headquartered in the United Kingdom as of September 2026 and tracks 2,704 professional contacts across them, including 619 with verified work emails and 225 with mobile numbers. London is the largest hub.

This list covers SaaS 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 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 6, 2026 86% judged on-target in blind review

234Companies

2,704Contacts tracked

619Verified emails

225Mobile numbers

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The 25 largest SaaS companies based in the United Kingdom

Ranked by team size

Top 25 of 234 SaaS companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to SaaS 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	Quantios	Indirect evidence	Fleet, United KingdomHQ checked Sep 6, 2026	201-500	223 contacts →
	Indirect evidence “Quantios powers the digital future of the Wealth, Trust, and Corporate Services industry.” Source: RevenueBase Database · checked Sep 6, 2026
2	Softbrands	Indirect evidence	Farnborough, United KingdomHQ checked Sep 6, 2026	501-1,000	177 contacts →
	Indirect evidence “In 2009 SoftBrands was bought by Infor and is now a part of the Infor Hospitality Suite.” Source: RevenueBase Database · checked Sep 6, 2026
3	Blue Lotus 360	Strong evidence	Gerrards Cross, United KingdomHQ checked Sep 6, 2026	51-200	75 contacts →
	Strong evidence “Blue lotus 360 is SaaS startup backed by corporate accelerator program of John Keells Holdings PLC's which is the largest corporation in Sri Lanka.” Source: RevenueBase Database · checked Sep 6, 2026
4	Workbooks CRM	Strong evidence	Reading, United KingdomHQ checked Sep 6, 2026	51-200	64 contacts →
	Strong evidence “Workbooks is a CRM SaaS platform used by growing companies to run their business and engage effectively with their customers.” Source: RevenueBase Database · checked Sep 6, 2026
5	Capsule	Indirect evidence	Manchester, United KingdomHQ checked Sep 6, 2026	11-50	55 contacts →
	Indirect evidence “Capsule was launched in 2009 following the founders' frustration with existing CRM services that were either overly simplistic or far too complex for most businesses.” Source: RevenueBase Database · checked Sep 6, 2026
6	Sci-Net Business Solutions	Indirect evidence	Chipping Norton, United KingdomHQ checked Sep 6, 2026	11-50	53 contacts →
	Indirect evidence “At Sci-Net Business Solutions (now part of the ANS Group) we are passionate and driven by the success of our customers.” Source: RevenueBase Database · checked Sep 6, 2026
7	Pegasus Software	Indirect evidence	Kettering, United KingdomHQ checked Sep 6, 2026	51-200	41 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 6, 2026
8	Domos FS	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	39 contacts →
	Indirect evidence “Domos FS is part of SimCorp.” Source: RevenueBase Database · checked Sep 6, 2026
9	1st 4 Connect Limited	Strong evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	38 contacts →
	Strong evidence “1ST 4 Connect Limited’s core area of business is SAAS (software as a service also knows as software on demand).” Source: RevenueBase Database · checked Sep 6, 2026
10	EYONA	Strong evidence	London, United KingdomHQ checked Sep 6, 2026	51-200	31 contacts →
	Strong evidence “Eyona is a multi-product company specialising in B2B SaaS products.” Source: RevenueBase Database · checked Sep 6, 2026
11	Saastock	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	29 contacts →
	Indirect evidence “Where AI meets ARR Whether you’re building your first AI feature or rearchitecting your go-to-market, SaaStock gives you the frameworks, relationships, and energy to scale with…” Source: RevenueBase Database · checked Sep 6, 2026
12	MAI India	Strong evidence	Cambourne, United KingdomHQ checked Sep 6, 2026	51-200	26 contacts →
	Strong evidence “MAI Corporation, an IT company based in Ambattur, Chennai, is developing a SAAS product for individuals and SMEs in the service-based industry.” Source: RevenueBase Database · checked Sep 6, 2026
13	Stratos Technologies	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	25 contacts →
	Indirect evidence “STRATOS is a London-based technology company founded in 2022.” Source: RevenueBase Database · checked Sep 6, 2026
14	Gold-Vision CRM	Indirect evidence	Northampton, United KingdomHQ checked Sep 6, 2026	11-50	25 contacts →
	Indirect evidence “Gold-Vision CRM is a highly configurable, user-friendly customer relationship management (CRM) platform designed to unify and streamline sales and marketing processes for…” Source: RevenueBase Database · checked Sep 6, 2026
15	Prospect CRM	Indirect evidence	Loughborough, United KingdomHQ checked Sep 6, 2026	51-200	23 contacts →
	Indirect evidence “ProspectSoft is part of the ERP division at The Access Group, specialising in CRM & eCommerce.” Source: RevenueBase Database · checked Sep 6, 2026
16	Ascendx	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	1-10	22 contacts →
	Indirect evidence “An enterprise cloud software company that helps teams solve their problems by boosting productivity and transforming tech stacks on CRM platforms such as Salesforce, Dynamics 365…” Source: RevenueBase Database · checked Sep 6, 2026
17	Itouchvision	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	22 contacts →
	Indirect evidence “iTouchVision is one of the world's leading cloud-based service providers with innovation & excellence at its base.” Source: RevenueBase Database · checked Sep 6, 2026
18	KINDE	Strong evidence	Sydney, United KingdomHQ checked Sep 6, 2026	11-50	21 contacts →
	Strong evidence “Kinde is a fully-integrated developer platform, providing SaaS and AI app infrastructure to thousands of businesses globally.” Source: RevenueBase Database · checked Sep 6, 2026
19	Blue Sheep	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 6, 2026	1-10	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
20	Invincible Software Holdings ISH	Strong evidence	Oxford, United KingdomHQ checked Sep 6, 2026	1-10	18 contacts →
	Strong evidence “Invincible Software Holdings ("ISH”) is the natural home for young and robust SaaS companies focusing on the B2B market.” Source: RevenueBase Database · checked Sep 6, 2026
21	Zumzum	Indirect evidence	Stockport, United KingdomHQ checked Sep 6, 2026	11-50	18 contacts →
	Indirect evidence “Zumzum helps you transform your Lead-2-Cash process and the way your people work to become a real time business.” Source: RevenueBase Database · checked Sep 6, 2026
22	Moneypex	Strong evidence	Birmingham, United KingdomHQ checked Sep 6, 2026	11-50	17 contacts →
	Strong evidence “Moneypex is a pioneering SAAS company at the forefront of transforming the way businesses manage their financial operations.” Source: RevenueBase Database · checked Sep 6, 2026
23	Scribe	Strong evidence	North Walsham, United KingdomHQ checked Sep 6, 2026	11-50	15 contacts →
	Strong evidence “Scribe is the fastest-growing SaaS (Software as a Service) company operating in the local government sector.” Source: RevenueBase Database · checked Sep 6, 2026
24	Robosme	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	11-50	15 contacts →
	Indirect evidence “Robosme - CRM to Win Easy to use cloud CRM that automates your business and benefits every process you touch the customer.” Source: RevenueBase Database · checked Sep 6, 2026
25	Humony	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 6, 2026	11-50	15 contacts →
	Indirect evidence “With over 30 years’ experience under our belt in helping our valued clients to work smarter, we find business solutions to your problems.” Source: RevenueBase Database · checked Sep 6, 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: SaaS 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 SaaS companies.
Partial evidence: Its own public description names part of SaaS companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name SaaS 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 234 SaaS companies based in the United Kingdom

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SaaS companies based in the United Kingdom at a glance

As of Sep 6, 2026

22.9%Verified-email coverage

8.3%Mobile-number coverage

11.6Average contacts per company

1-10Median size (employees)

38.9%Largest-city concentration · London

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

139

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

5770–30

4131–60

061–90

090–180

1180+

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 SaaS 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 the United Kingdom whose own description of what they do matches “SaaS 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 SaaS 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 SaaS 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 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, 619 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 6, 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.

SaaS companies by metro

SaaS companies in London91

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 SaaS 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 SaaS companies are there based in the United Kingdom?

RevenueBase identified 234 SaaS companies headquartered in the 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?

Quantios, headquartered in Fleet, tops this list with the largest team on record.

Which city has the most SaaS companies?

London leads with 91 headquartered companies, followed by Bristol (7) and Reading (5).

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 619 verified decision-maker contacts tracked across these 234 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 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 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.