CMS Used by UK IT Services Companies: Market Share (2026)

Updated June 2026

Detected CMS market share across 4,207 of 121,886 trading UK IT services companies, with WordPress first at 76.8% (3,233 companies).

Among 121,886 trading UK IT services companies, 4,207 have an identifiable CMS. WordPress accounts for 76.8% of that detected market, with 3,233 companies, while Wix follows at 6.6% with 276 companies.

Webflow appears in 199 companies, or 4.7%, and Squarespace in 167 companies, or 4.0%. Drupal, Joomla, Craft CMS and Duda sit below that, at 1.9%, 1.3%, 1.0% and 0.7% respectively.

The long tail is sizeable in count but small in share: 26 further systems cover 171 companies between them. WordPress is the largest system in each employee band, although its share falls to 66.4% among companies with over 50 employees.

4,207

IT services with detected CMS

Of 121,886 UK IT services

3.5%

Detection rate

2026

Systems detected

In this category

76.8%

Leader share

WordPress

UK IT Services CMS market share

Joomla

Other (26 systems)

Share of the 4,207 UK IT Services with a detectable system. As of June 2026.

CMS compared

System	UK IT Services	Share	Median headcount	London share	Typical profile
WordPress	3,233	76.8%	6	23.6%	6-person firms, default CMS
Wix	276	6.6%	6	27.5%	6-person firms, hosted CMS
Webflow	199	4.7%	7	35.2%	7-person firms, London-leaning
Squarespace	167	4%	7	29.3%	7-person firms, London-skewed
Drupal	78	1.9%	5	34.6%	5-person firms, lower-share CMS
Joomla	54	1.3%	6	33.3%	6-person firms, lower-share CMS
Craft CMS	41	1%	—	—	View these companies in Firmbase →
Duda	31	0.7%	—	—	View these companies in Firmbase →
Adobe Experience Manager	29	0.7%	—	—	View these companies in Firmbase →
Sanity	24	0.6%	—	—	View these companies in Firmbase →
Umbraco	23	0.5%	—	—	View these companies in Firmbase →
Contentful	20	0.5%	—	—	View these companies in Firmbase →
Storyblok	14	0.3%	—	—	View these companies in Firmbase →
Statamic	13	0.3%	—	—	View these companies in Firmbase →
Blogger	12	0.3%	—	—	View these companies in Firmbase →
It'seeze	12	0.3%	—	—	View these companies in Firmbase →
Weebly	11	0.3%	—	—	View these companies in Firmbase →
Concrete CMS	11	0.3%	—	—	View these companies in Firmbase →
TYPO3 CMS	8	0.2%	—	—	View these companies in Firmbase →
ProcessWire	6	0.1%	—	—	View these companies in Firmbase →
Kentico	5	0.1%	—	—	View these companies in Firmbase →
October CMS	5	0.1%	—	—	View these companies in Firmbase →
DNN	4	0.1%	—	—	View these companies in Firmbase →
DatoCMS	4	0.1%	—	—	View these companies in Firmbase →
Ghost	4	0.1%	—	—	View these companies in Firmbase →
Business Catalyst	3	0.1%	—	—	View these companies in Firmbase →
Silverstripe	3	0.1%	—	—	View these companies in Firmbase →
Prismic	2	0%	—	—	View these companies in Firmbase →
Sitecore	2	0%	—	—	View these companies in Firmbase →
MODX	2	0%	—	—	View these companies in Firmbase →
ExpressionEngine	2	0%	—	—	View these companies in Firmbase →
Optimizely Content Management	2	0%	—	—	View these companies in Firmbase →
Magnolia CMS	1	0%	—	—	View these companies in Firmbase →
Tridion	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 IT Services with under 10 employees, WordPress leads at 77.1% of the 2,787 with a detectable system; among UK IT Services with 10–50 employees, WordPress leads at 77.3% of the 1,310 with a detectable system; and among UK IT Services with over 50 employees, WordPress leads at 66.4% of the 110 with a detectable system.

Under 10 employees

WordPress

77.1% of band

Among 2,787 companies in this band, WordPress accounts for 77.1%. This is the largest part of the market by company count, with smaller-site systems competing around a sizeable WordPress base.

10–50 employees

WordPress

77.3% of band

Among 1,310 companies in this band, WordPress accounts for 77.3%. Wix, Webflow and Squarespace remain visible alternatives, but the split still looks close to the smallest-company segment.

Over 50 employees

WordPress

66.4% of band

Among 110 companies in this band, WordPress accounts for 66.4%. The share is lower than in smaller bands, leaving more room for systems such as Webflow, Drupal and Joomla.

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 IT Services by CMS

IT Services Companies Using WordPress in the UK IT Services Companies Using Wix in the UK IT Services Companies Using Webflow in the UK IT Services Companies Using Squarespace in the UK IT Services Companies Using Drupal 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)IT Services in the UK

Frequently asked questions

What is the most-used CMS among UK IT services companies?

WordPress is the most-detected CMS among UK IT services companies, with 76.8% share (3,233 of 4,207 companies with a detectable system), ahead of Wix (6.6%) and Webflow (4.7%).

How many UK IT services companies have a detectable CMS?

4,207 of 121,886 actively-trading UK IT services companies (3.5%) 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 UK IT services company uses to create, edit and publish its website content. It usually handles pages, templates, media and basic site administration, giving marketing and operations teams a way to maintain the public website without changing the underlying code each time.

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 IT services companies, WordPress or Wix?

WordPress: 3,233 detected companies versus 276 for Wix, of the 4,207 UK IT services companies with a detectable CMS.

What is the best CMS for UK IT services companies?

This page reports observed CMS usage rather than making recommendations. WordPress has the largest share in every employee band: 77.1% among 2,787 companies under 10 employees, 77.3% among 1,310 companies with 10–50 employees, and 66.4% among 110 companies with over 50 employees.

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