WordPress plugins Used by UK SaaS Companies: Market Share (2026)

Updated June 2026

Detected WordPress plugin market share across 698 UK SaaS companies, with Site Kit the largest system at 32.5% (227 companies).

Among 39,965 trading UK SaaS companies, 698 have a detectable WordPress plugin footprint across 23 systems. Site Kit is the largest named system at 32.5% (227), followed by Max Mega Menu at 17.9% (125), Jetpack at 13.0% (91) and Essential Addons for Elementor at 12.2% (85).

Site Kit leads each employee band: 31.4% of the 424 companies under 10 employees, 34.6% of the 257 companies with 10–50 employees, and 29.4% of the 17 companies over 50 employees. That consistency suggests the category is shaped more by common website operating needs than by company size, at least within detected SaaS sites.

After the first five systems, share falls quickly: Smush has 8.2% (57), Autoptimize 6.0% (42), JetEngine 5.9% (41) and EWWW Image Optimizer 4.7% (33). A further 15 systems cover 80 companies, so the tail remains fragmented even though the first system accounts for nearly a third of detected use.

698

SaaS with detected WordPress plugins

Of 39,965 UK SaaS

1.7%

Detection rate

2026

Systems detected

In this category

32.5%

Leader share

Site Kit

UK SaaS WordPress plugins market share

Site Kit

Max Mega Menu

Jetpack

Essential Addons for Elementor

Other (15 systems)

Share of the 698 UK SaaS with a detectable system. As of June 2026.

WordPress plugins compared

System	UK SaaS	Share	Median headcount	London share	Typical profile
Site Kit	227	32.5%	7	31.3%	Median 7-person SaaS, 32.5% share
Max Mega Menu	125	17.9%	6	36.8%	Median 6-person SaaS, 17.9% share
Jetpack	91	13%	6	41.8%	Median 6-person SaaS, 13.0% share
Essential Addons for Elementor	85	12.2%	8	25.9%	Median 8-person SaaS, 12.2% share
Smush	57	8.2%	10	24.6%	Median 10-person SaaS, 8.2% share
Autoptimize	42	6%	—	—	View these companies in Firmbase →
JetEngine	41	5.9%	—	—	View these companies in Firmbase →
EWWW Image Optimizer	33	4.7%	—	—	View these companies in Firmbase →
Perfmatters	21	3%	—	—	View these companies in Firmbase →
Essential Blocks	20	2.9%	—	—	View these companies in Firmbase →
GoDaddy CoBlocks	15	2.1%	—	—	View these companies in Firmbase →
Elementor Addon Elements	12	1.7%	—	—	View these companies in Firmbase →
GenerateBlocks	11	1.6%	—	—	View these companies in Firmbase →
a3 Lazy Load	9	1.3%	—	—	View these companies in Firmbase →
Advanced Custom Fields	8	1.1%	—	—	View these companies in Firmbase →
iThemes	7	1%	—	—	View these companies in Firmbase →
Animate It	7	1%	—	—	View these companies in Firmbase →
Breadcrumb NavXT	4	0.6%	—	—	View these companies in Firmbase →
ContentViews	3	0.4%	—	—	View these companies in Firmbase →
Flying Pages	2	0.3%	—	—	View these companies in Firmbase →
HT Mega	2	0.3%	—	—	View these companies in Firmbase →
WP Portfolio	2	0.3%	—	—	View these companies in Firmbase →
Shortcodes Ultimate	1	0.1%	—	—	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 WordPress plugins system shifts with company size: among UK SaaS with under 10 employees, Site Kit leads at 31.4% of the 424 with a detectable system; among UK SaaS with 10–50 employees, Site Kit leads at 34.6% of the 257 with a detectable system; and among UK SaaS with over 50 employees, Site Kit leads at 29.4% of the 17 with a detectable system.

Under 10 employees

Site Kit

31.4% of band

The smallest band contains 424 companies, with Site Kit on 31.4%. The remainder is split across the other detected systems, including Max Mega Menu and Jetpack.

10–50 employees

Site Kit

34.6% of band

This band covers 257 companies and still has Site Kit ahead at 34.6%. Usage remains split across the wider 23-system category, with menu, analytics, content and optimisation plugins all visible among the named systems.

Over 50 employees

Site Kit

29.4% of band

Only 17 detected companies sit in this band, so small changes can move shares. Site Kit still leads at 29.4%, while the rest of the band is spread across the remaining systems.

How WordPress plugins 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 WordPress plugins

SaaS Companies Using Site Kit in the UK SaaS Companies Using Max Mega Menu in the UK SaaS Companies Using Jetpack in the UK SaaS Companies Using Essential Addons for Elementor in the UK SaaS Companies Using Smush in the UK

Related directories

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

Frequently asked questions

What is the most-used WordPress plugins among UK SaaS companies?

Site Kit is the most-detected WordPress plugins among UK SaaS companies, with 32.5% share (227 of 698 companies with a detectable system), ahead of Max Mega Menu (17.9%) and Jetpack (13%).

How many UK SaaS companies have a detectable WordPress plugins?

698 of 39,965 actively-trading UK SaaS companies (1.7%) have a WordPress plugins 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 WordPress plugins?

A WordPress plugin is an add-on used to extend a WordPress site with functions such as analytics, menus, page components, image handling or performance work. For UK SaaS companies, the job is usually to support the marketing site and web operations around the product, rather than to define the SaaS product itself.

How is WordPress plugins 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, Site Kit or Max Mega Menu?

Site Kit: 227 detected companies versus 125 for Max Mega Menu, of the 698 UK SaaS companies with a detectable WordPress plugins.

What is the best WordPress plugins for UK SaaS companies?

This page publishes observed usage rather than recommendations, so the best WordPress plugin depends on the site task and operating context. Site Kit leads every employee band shown: 31.4% among 424 companies under 10 employees, 34.6% among 257 companies with 10–50 employees, and 29.4% among 17 companies over 50 employees. Across 698 detected companies, Site Kit has 32.5% (227), ahead of Max Mega Menu at 17.9% (125), Jetpack at 13.0% (91) and Essential Addons for Elementor at 12.2% (85).

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