CMS Used by UK E-Commerce Companies: Market Share (2026)
Detected CMS market share across 2,749 of 61,187 trading UK e-commerce companies, led by WordPress at 76.4%.
CMS choice is identifiable for 2,749 of 61,187 trading UK e-commerce companies, with 30 systems detected. WordPress accounts for 76.4% (2,101), so the market is concentrated around one CMS before the remaining systems begin to matter.
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Wix follows at 7.9% (216), Squarespace at 5.0% (137) and Webflow at 2.5% (68). Drupal, Contentful, Sanity and Duda each sit between 1.1% and 1.4%, while 22 further systems cover 129 companies.
WordPress also leads by employee band: 76.8% of the 1,939 companies under 10 employees, 75.4% of the 775 companies with 10–50 employees, and 80.0% of the 35 companies over 50 employees. The larger-company band is small, so the size split mainly confirms that WordPress usage is not confined to micro-businesses.
2,749
e-commerce with detected CMS
Of 61,187 UK e-commerce
4.5%
Detection rate
2026
30
Systems detected
In this category
76.4%
Leader share
WordPress
UK E-Commerce CMS market share
Share of the 2,749 UK E-Commerce with a detectable system. As of June 2026.
CMS compared
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 E-Commerce with under 10 employees, WordPress leads at 76.8% of the 1,939 with a detectable system; among UK E-Commerce with 10–50 employees, WordPress leads at 75.4% of the 775 with a detectable system; and among UK E-Commerce with over 50 employees, WordPress leads at 80% of the 35 with a detectable system.
Under 10 employees
76.8% of band
At 1,939 companies, this is the largest employee band among UK e-commerce companies with a detectable CMS. WordPress leads with 76.8%; across the wider market, Wix, Squarespace and Webflow are the next named challengers.
10–50 employees
75.4% of band
The 10–50 employees band has 775 companies and remains WordPress-led at 75.4%. Wix, Squarespace and Webflow are the main named alternatives in the wider market, with 22 further systems sharing 129 companies.
Over 50 employees
80% of band
Only 35 companies sit in the Over 50 employees band, so small count changes can move shares. WordPress leads with 80.0%, while competition is thin in company-count terms.
How CMS usage is detected
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.
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UK E-Commerce by CMS
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Frequently asked questions
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