Security Used by UK construction: Market Share (2026)
Security systems are detectable at 8,166 UK construction companies, with reCAPTCHA leading the detected market at 93.4% (7,628 companies).
Among 238,559 trading UK construction companies, 8,166 have a detectable Security system. reCAPTCHA accounts for 93.4% of detected companies, with 7,628 instances, while the next largest systems are CleanTalk at 2.8% (227) and hCaptcha at 2.0% (165).
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The pattern is similar across company size bands. reCAPTCHA leads among Under 10 employees companies with 93.4%, 10–50 employees companies with 93.6%, and Over 50 employees companies with 91.4%.
The remaining market is fragmented. WP Guardian, Sucuri and Wordfence each sit close to 1%, while 9 further systems cover 35 companies between them.
8,166
construction with detected Security
Of 238,559 UK construction
3.4%
Detection rate
2026
17
Systems detected
In this category
93.4%
Leader share
reCAPTCHA
UK construction Security market share
Security compared
| System | UK construction | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| reCAPTCHA | 7,628 | 93.4% | 5 | 11.6% | Five-person firms, market default |
| CleanTalk | 227 | 2.8% | 5 | 12.3% | Five-person firms, small-site filtering |
| hCaptcha | 165 | 2% | 6 | 5.5% | Six-person firms, alternative verification |
| WP Guardian | 95 | 1.2% | 6 | 6.3% | Six-person firms, website protection |
| Sucuri | 90 | 1.1% | 6 | 17.8% | Six-person firms, London-skewed security |
| Wordfence | 88 | 1.1% | 6 | 9.1% | Six-person firms, website firewall |
| ClickCease | 29 | 0.4% | — | — | View these companies in Firmbase → |
| Imperva | 24 | 0.3% | — | — | View these companies in Firmbase → |
| Akamai Bot Manager | 14 | 0.2% | — | — | View these companies in Firmbase → |
| Arkose Labs | 13 | 0.2% | — | — | View these companies in Firmbase → |
| Barracuda Networks | 9 | 0.1% | — | — | View these companies in Firmbase → |
| DataDome | 6 | 0.1% | — | — | View these companies in Firmbase → |
| Trustwave | 6 | 0.1% | — | — | View these companies in Firmbase → |
| Sectigo TrustLogo | 3 | 0% | — | — | View these companies in Firmbase → |
| HackerOne | 2 | 0% | — | — | View these companies in Firmbase → |
| F5 | 2 | 0% | — | — | View these companies in Firmbase → |
| Kiprotect | 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
Under 10 employees
93.4% of band
This is the largest detected band, with 5,740 companies. reCAPTCHA leads with 93.4%, leaving smaller anti-spam and website security tools to divide a narrow remainder.
10–50 employees
93.6% of band
This band covers 2,204 detected companies and looks much like the micro-business market. reCAPTCHA leads with 93.6%, with CleanTalk, hCaptcha and WordPress-oriented security tools taking small shares.
Over 50 employees
91.4% of band
There are 222 detected companies in this band. reCAPTCHA still leads with 91.4%, though the slightly lower share leaves more room for specialist security and bot-management systems.
How Security 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.
All product names are trademarks of their respective owners. Firmbase is not affiliated with, sponsored by, or endorsed by any trademark owner.
UK construction by Security
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Frequently asked questions
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