Security Used by UK Construction Companies: Market Share (2026)
Security use is detected across 8,523 UK construction companies, with reCAPTCHA accounting for 89.6% of detections.
Among 241,271 trading UK construction companies, 8,523 have a detectable Security system. The category is concentrated around reCAPTCHA, which is present at 89.6% (7,634) of those companies, followed by Akismet at 5.7% (484), CleanTalk at 2.7% (229) and hCaptcha at 1.9% (164).
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reCAPTCHA takes the largest share in every employment band: 89.6% among 6,008 companies under 10 employees, 89.8% among 2,285 companies with 10–50 employees, and 87.4% among 230 companies over 50 employees. Median headcounts for the profiled systems sit between 5 and 7 employees, so visible adoption is concentrated among smaller construction firms rather than large contractors.
Beyond the first four systems, the named tail is made up of TrustedSite at 1.4% (118), WP Guardian at 1.1% (94), and Wordfence and Sucuri at 1.0% (89) each. A further 10 systems cover 52 companies, leaving 18 systems detected in total.
8,523
construction with detected Security
Of 241,271 UK construction
3.5%
Detection rate
2026
18
Systems detected
In this category
89.6%
Leader share
reCAPTCHA
UK Construction Security market share
Share of the 8,523 UK Construction with a detectable system. As of June 2026.
Security compared
| System | UK Construction | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| reCAPTCHA | 7,634 | 89.6% | 5 | 11.7% | 5-employee firms, 89.6% share |
| Akismet | 484 | 5.7% | 6 | 16.3% | 6-employee firms, 5.7% share |
| CleanTalk | 229 | 2.7% | 5 | 12.2% | 5-employee firms, 2.7% share |
| hCaptcha | 164 | 1.9% | 5 | 6.1% | 5-employee firms, 1.9% share |
| TrustedSite | 118 | 1.4% | 5 | 13.6% | 5-employee firms, 1.4% share |
| WP Guardian | 94 | 1.1% | 5 | 6.4% | 5-employee firms, 1.1% share |
| Wordfence | 89 | 1% | 7 | 7.9% | 7-employee firms, 1.0% share |
| Sucuri | 89 | 1% | 6 | 18% | 6-employee firms, 1.0% share |
| Imperva | 23 | 0.3% | — | — | Buy these companies as a spreadsheet → |
| Akamai Bot Manager | 14 | 0.2% | — | — | Buy these companies as a spreadsheet → |
| Arkose Labs | 12 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| Barracuda Networks | 9 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| DataDome | 6 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| Trustwave | 6 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| FingerprintJS | 5 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| Sectigo TrustLogo | 3 | 0% | — | — | Buy these companies as a spreadsheet → |
| HackerOne | 2 | 0% | — | — | Buy these companies as a spreadsheet → |
| Kiprotect | 1 | 0% | — | — | Buy these companies as a spreadsheet → |
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 Security system shifts with company size: among UK Construction with under 10 employees, reCAPTCHA leads at 89.6% of the 6,008 with a detectable system; among UK Construction with 10–50 employees, reCAPTCHA leads at 89.8% of the 2,285 with a detectable system; and among UK Construction with over 50 employees, reCAPTCHA leads at 87.4% of the 230 with a detectable system.
Under 10 employees
89.6% of band
Under-10-employee companies account for 6,008 of the 8,523 companies with a detectable Security system. reCAPTCHA is present at 89.6%, while the rest of the band is split across lower-share anti-spam, challenge and site-protection tools.
10–50 employees
89.8% of band
The 10–50 employee band contains 2,285 companies with a detectable Security system. reCAPTCHA is present at 89.8%, leaving Akismet, CleanTalk, hCaptcha and the smaller site-security tools to compete for the remaining visible use.
Over 50 employees
87.4% of band
Only 230 companies with over 50 employees have a detectable Security system. reCAPTCHA remains first at 87.4%, but this band is small enough that alternatives such as Akismet, CleanTalk, hCaptcha, TrustedSite, WP Guardian, Wordfence and Sucuri appear in low volumes.
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.
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UK Construction by Security
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Frequently asked questions
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