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CMS Used by UK PV Installation Companies: Market Share (2026)

Detected CMS market share across 1,374 UK PV installation companies, with WordPress first at 73.9% of detected sites.

A CMS can be identified for 1,374 of the 1,666 trading UK PV installation companies in scope, with 27 systems detected. WordPress is the default pattern: 73.9% of companies with a detectable CMS, or 1,016 firms, use it.

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Wix is the next largest system at 12.6% and 173 companies, followed by Squarespace at 5.0% and 69 companies. GoDaddy Website Builder accounts for 2.7% and 37 companies, while Webflow and Duda each account for 1.6% and 22 companies.

WordPress leads every headcount band, from 73.1% among firms with under 10 employees to 96.2% among those with over 50 employees. The long tail is thin: 19 further systems cover 40 companies between them.

1,374

PV installation with detected CMS

Of 1,666 UK PV installation

82.5%

Detection rate

2026

27

Systems detected

In this category

73.9%

Leader share

WordPress

UK PV Installation CMS market share

WordPress
Wix
Squarespace
GoDaddy Website Builder
Webflow
Duda
Joomla
Cornerstone
Other (19 systems)

Share of the 1,374 UK PV Installation with a detectable system. As of June 2026.

CMS compared

SystemUK PV InstallationShareMedian headcountLondon shareTypical profile
WordPress1,01673.9%69.3%Small installers, broad majority
Wix17312.6%613.3%Small installers, secondary option
Squarespace695%84.3%Small installers, smaller share
GoDaddy Website Builder372.7%——View these companies in Firmbase →
Webflow221.6%——View these companies in Firmbase →
Duda221.6%——View these companies in Firmbase →
Joomla110.8%——View these companies in Firmbase →
Cornerstone100.7%——View these companies in Firmbase →
Microsoft SharePoint70.5%——View these companies in Firmbase →
Drupal60.4%——View these companies in Firmbase →
Craft CMS60.4%——View these companies in Firmbase →
Prismic40.3%——View these companies in Firmbase →
ExpressionEngine40.3%——View these companies in Firmbase →
Weebly40.3%——View these companies in Firmbase →
Concrete CMS30.2%——View these companies in Firmbase →
It'seeze30.2%——View these companies in Firmbase →
October CMS30.2%——View these companies in Firmbase →
ProcessWire30.2%——View these companies in Firmbase →
DatoCMS30.2%——View these companies in Firmbase →
Storyblok20.1%——View these companies in Firmbase →
Business Catalyst20.1%——View these companies in Firmbase →
Tridion20.1%——View these companies in Firmbase →
DNN20.1%——View these companies in Firmbase →
Sanity10.1%——View these companies in Firmbase →
Statamic10.1%——View these companies in Firmbase →
Odoo10.1%——View these companies in Firmbase →
Contentful10.1%——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 PV Installation with under 10 employees, WordPress leads at 73.1% of the 994 with a detectable system; among UK PV Installation with 10–50 employees, WordPress leads at 74.6% of the 354 with a detectable system; and among UK PV Installation with over 50 employees, WordPress leads at 96.2% of the 26 with a detectable system.

Under 10 employees

WordPress

73.1% of band

Under 10 employees is the largest band, with 994 companies and a WordPress share of 73.1%. Wix and Squarespace sit behind the main pattern among smaller installation businesses.

10–50 employees

WordPress

74.6% of band

10–50 employees includes 354 companies, and WordPress leads with 74.6% of the band. The market remains concentrated, with the smaller CMS options competing for the remaining quarter.

Over 50 employees

WordPress

96.2% of band

Over 50 employees is a small band of 26 companies, and WordPress accounts for 96.2% of it. Larger PV installation firms therefore show less CMS variation than the smaller bands.

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.

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

UK PV Installation by CMS

PV Installation Companies Using WordPress in the UKPV Installation Companies Using Wix in the UKPV Installation Companies Using Squarespace 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)PV Installation in the UK

Frequently asked questions

What is the most-used CMS among UK PV installation companies?
WordPress is the most-detected CMS among UK PV installation companies, with 73.9% share (1,016 of 1,374 companies with a detectable system), ahead of Wix (12.6%) and Squarespace (5%).
How many UK PV installation companies have a detectable CMS?
1,374 of 1,666 actively-trading UK PV installation companies (82.5%) 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 PV installation company uses to manage and publish its website content. For these firms, it typically supports service pages, project information, contact routes and sales enquiries from households or businesses considering solar installation.
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 PV installation companies, WordPress or Wix?
WordPress: 1,016 detected companies versus 173 for Wix, of the 1,374 UK PV installation companies with a detectable CMS.
What is the best CMS for UK PV installation companies?
This page publishes usage patterns rather than recommendations, so it does not rank the best CMS for UK PV installation companies. WordPress leads every size band: 73.1% of 994 companies under 10 employees, 74.6% of 354 companies with 10–50 employees, and 96.2% of 26 companies over 50 employees.

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