Company lists · Data refreshed September 2026
Top 25 SaaS companies based in the United Kingdom
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, how directly it supports the match, 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 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.
The 25 largest SaaS companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | QuantiosIndirect evidence | 223 | |||
“Quantios powers the digital future of the Wealth, Trust, and Corporate Services industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 177 | ||||
“In 2009 SoftBrands was bought by Infor and is now a part of the Infor Hospitality Suite.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 75 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 64 | ||||
“Workbooks is a CRM SaaS platform used by growing companies to run their business and engage effectively with their customers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 55 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 53 | ||||
“At Sci-Net Business Solutions (now part of the ANS Group) we are passionate and driven by the success of our customers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 39 | ||||
“Domos FS is part of SimCorp.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 38 | ||||
“1ST 4 Connect Limited’s core area of business is SAAS (software as a service also knows as software on demand).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 31 | ||||
“Eyona is a multi-product company specialising in B2B SaaS products.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | SaastockIndirect evidence | 29 | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | MAI IndiaStrong evidence | 26 | |||
“MAI Corporation, an IT company based in Ambattur, Chennai, is developing a SAAS product for individuals and SMEs in the service-based industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 25 | ||||
“STRATOS is a London-based technology company founded in 2022.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 25 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 23 | ||||
“ProspectSoft is part of the ERP division at The Access Group, specialising in CRM & eCommerce.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 | ||||
“iTouchVision is one of the world's leading cloud-based service providers with innovation & excellence at its base.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 | ||||
“Kinde is a fully-integrated developer platform, providing SaaS and AI app infrastructure to thousands of businesses globally.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Invincible Software Holdings ISHStrong evidence | 18 | |||
“Invincible Software Holdings ("ISH”) is the natural home for young and robust SaaS companies focusing on the B2B market.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 18 | ||||
“Zumzum helps you transform your Lead-2-Cash process and the way your people work to become a real time business.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 | ||||
“Moneypex is a pioneering SAAS company at the forefront of transforming the way businesses manage their financial operations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | ScribeStrong evidence | 15 | |||
“Scribe is the fastest-growing SaaS (Software as a Service) company operating in the local government sector.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 | ||||
“Robosme - CRM to Win Easy to use cloud CRM that automates your business and benefits every process you touch the customer.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 | ||||
“With over 30 years’ experience under our belt in helping our valued clients to work smarter, we find business solutions to your problems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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 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 “SaaS 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 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 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, 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
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 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.