CMS Used by UK SaaS Companies: Market Share (2026)

Updated June 2026

Detected CMS usage across 3,894 of 39,624 trading UK SaaS companies, with WordPress ahead at 60.2% of detections.

Among 39,624 trading UK SaaS companies, 3,894 have a detectable CMS. WordPress accounts for 60.2% of detected use, with 2,343 companies, while Webflow is the main second system at 15.8%, or 615 companies.

Smaller SaaS firms make up most detected CMS use: the under-10-employee band contains 2,543 companies, compared with 1,236 in the 10–50 band and 115 above 50 employees. WordPress leads all three bands, with 58.0% under 10 employees, 64.6% at 10–50 employees and 61.7% over 50 employees.

The market then fragments. Wix has 5.8% with 227 companies, Squarespace 5.5% with 215 and Weebly 4.3% with 169; Drupal, Sanity and Contentful sit between 1.6% and 1.8%, while 26 further systems cover 243 companies.

3,809

SaaS with detected CMS

Of 39,965 UK SaaS

9.5%

Detection rate

2026

Systems detected

In this category

60.5%

Leader share

WordPress

UK SaaS CMS market share

Other (23 systems)

Share of the 3,809 UK SaaS with a detectable system. As of June 2026.

CMS compared

System	UK SaaS	Share	Median headcount	London share	Typical profile
WordPress	2,303	60.5%	6	34.5%	Small SaaS teams, broad adoption
Webflow	597	15.7%	7	51.6%	Small SaaS teams, London-skewed
Wix	222	5.8%	5	32.4%	Very small SaaS teams
Squarespace	218	5.7%	6	33.9%	Small SaaS teams, generalist sites
Weebly	170	4.5%	1	25.9%	Micro SaaS teams
Drupal	71	1.9%	5	46.5%	Small teams, London-skewed
Sanity	68	1.8%	7	54.4%	Small teams, London-heavy
Contentful	62	1.6%	7	50%	Small teams, London-skewed
Craft CMS	37	1%	—	—	View these companies in Firmbase →
Prismic	32	0.8%	—	—	View these companies in Firmbase →
Adobe Experience Manager	26	0.7%	—	—	View these companies in Firmbase →
Duda	26	0.7%	—	—	View these companies in Firmbase →
Joomla	26	0.7%	—	—	View these companies in Firmbase →
Storyblok	24	0.6%	—	—	View these companies in Firmbase →
Ghost	20	0.5%	—	—	View these companies in Firmbase →
DNN	14	0.4%	—	—	View these companies in Firmbase →
TYPO3 CMS	10	0.3%	—	—	View these companies in Firmbase →
DatoCMS	10	0.3%	—	—	View these companies in Firmbase →
Concrete CMS	9	0.2%	—	—	View these companies in Firmbase →
Statamic	9	0.2%	—	—	View these companies in Firmbase →
Blogger	7	0.2%	—	—	View these companies in Firmbase →
Sitecore	6	0.2%	—	—	View these companies in Firmbase →
ExpressionEngine	5	0.1%	—	—	View these companies in Firmbase →
Umbraco	4	0.1%	—	—	View these companies in Firmbase →
October CMS	4	0.1%	—	—	View these companies in Firmbase →
Optimizely Content Management	2	0.1%	—	—	View these companies in Firmbase →
Silverstripe	2	0.1%	—	—	View these companies in Firmbase →
Kentico	2	0.1%	—	—	View these companies in Firmbase →
Business Catalyst	2	0.1%	—	—	View these companies in Firmbase →
ProcessWire	2	0.1%	—	—	View these companies in Firmbase →
Magnolia CMS	1	0%	—	—	View these companies in Firmbase →

Systems detected below the page threshold appear with counts only; their full lists are available in the Firmbase app.

Market leader by size

The leading CMS system shifts with company size: among UK SaaS with under 10 employees, WordPress leads at 58.4% of the 2,508 with a detectable system; among UK SaaS with 10–50 employees, WordPress leads at 65% of the 1,188 with a detectable system; and among UK SaaS with over 50 employees, WordPress leads at 59.3% of the 113 with a detectable system.

Under 10 employees

WordPress

58.4% of band

The under-10-employee band contains 2,543 SaaS companies with a detected CMS. WordPress leads with 58.0%, while smaller-site systems and the long tail compete for the remaining share.

10–50 employees

WordPress

65% of band

The 10–50-employee band contains 1,236 companies and is the most WordPress-skewed segment, at 64.6%. Webflow and the smaller CMS groups are present, but the category remains concentrated around WordPress.

Over 50 employees

WordPress

59.3% of band

The over-50-employee band is much smaller, with 115 companies. WordPress still leads at 61.7%, although enterprise-leaning and headless systems appear more relevant in this part of the market.

How CMS usage is detected

Methodology

Company data

Detected companies are joined to UK Companies House records and XBRL accounts data. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.

Detection

Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling.

Freshness

Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.

Sources

All product names are trademarks of their respective owners. Firmbase is not affiliated with, sponsored by, or endorsed by any trademark owner.

UK SaaS by CMS

SaaS Companies Using WordPress in the UK SaaS Companies Using Webflow in the UK SaaS Companies Using Wix in the UK SaaS Companies Using Squarespace in the UK SaaS Companies Using Weebly in the UK SaaS Companies Using Sanity in the UK SaaS Companies Using Drupal in the UK SaaS Companies Using Contentful in the UK

Related directories

Most-Used CMS by UK Companies (2026)CMS Used by UK B2B Companies: Market Share (2026)CMS Used by UK B2C Companies: Market Share (2026)CMS Used by UK Field Services Companies: Market Share (2026)CMS Used by UK Construction Companies: Market Share (2026)SaaS in the UK

Frequently asked questions

What is the most-used CMS among UK SaaS companies?

WordPress is the most-detected CMS among UK SaaS companies, with 60.5% share (2,303 of 3,809 companies with a detectable system), ahead of Webflow (15.7%) and Wix (5.8%).

How many UK SaaS companies have a detectable CMS?

3,809 of 39,965 actively-trading UK SaaS companies (9.5%) have a CMS detectable from their public website. The remainder either run systems with no public web footprint or none at all, so detected share figures are a conservative floor.

What is a CMS?

A CMS is the system a SaaS company uses to manage website pages, marketing content and publishing workflows. For UK SaaS companies, it usually supports the public website rather than the application itself, covering content editing, landing pages, documentation or campaign pages.

How is CMS usage detected?

Firmbase crawls the public website of every actively-trading company in this scope and fingerprints the technologies present — scripts, widgets, booking and checkout flows. A company is attributed to a system when that system's signatures are found; systems with no public web footprint are not attributable, which is why every share figure on this page means share of companies with a detectable system.

Which has more UK SaaS companies, WordPress or Webflow?

WordPress: 2,303 detected companies versus 597 for Webflow, of the 3,809 UK SaaS companies with a detectable CMS.

What is the best CMS for UK SaaS companies?

This page reports observed CMS usage rather than recommendations. WordPress leads every employee band: 58.0% among 2,543 under-10-employee companies, 64.6% among 1,236 companies with 10–50 employees and 61.7% among 115 companies with over 50 employees; overall, WordPress has 60.2% of detected use, followed by Webflow at 15.8%.

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