Most-Used Tag manager by UK Companies (2026)
Detected tag manager usage across 44,918 UK companies, with Google Tag Manager appearing in 97.6% of detected cases.
Among 2,066,481 trading UK companies, 44,918 have a detectable tag manager. Four systems are detected, with Google Tag Manager accounting for 97.6% (43,836 companies).
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Small employers make up most of the visible market: 29,114 companies sit in Under 10 employees, compared with 13,551 in 10–50 employees and 2,253 in Over 50 employees. Google Tag Manager is first in each band, at 97.6%, 97.5% and 97.9% respectively.
Other detected systems form a short tail rather than a broad field. Draftpress HFCM appears at 3.2% (1,425 companies), PixelYourSite at 1.7% (782), and Adobe Dynamic Tag Management at 0.8% (353).
44,918
Companies with detected Tag manager
Of 2,066,481 UK companies
2.2%
Detection rate
2026
4
Systems detected
In this category
97.6%
Leader share
Google Tag Manager
UK companies Tag manager market share
Share of the 44,918 UK companies with a detectable system. As of June 2026.
Tag manager compared
| System | UK companies | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| Google Tag Manager | 43,736 | 97.4% | 6 | 21.6% | Median 6 headcount, 97.6% share |
| Draftpress HFCM | 1,425 | 3.2% | 6 | 23.2% | Median 6 headcount, 3.2% share |
| PixelYourSite | 793 | 1.8% | 6 | 18.3% | Median 6 headcount, 1.7% share |
| Adobe Dynamic Tag Management | 343 | 0.8% | 5 | 26.6% | Median 5 headcount, 0.8% share |
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 Tag manager system shifts with company size: among UK companies with under 10 employees, Google Tag Manager leads at 97.6% of the 29,114 with a detectable system; among UK companies with 10–50 employees, Google Tag Manager leads at 97.5% of the 13,551 with a detectable system; and among UK companies with over 50 employees, Google Tag Manager leads at 97.9% of the 2,253 with a detectable system.
Under 10 employees
97.6% of band
With 29,114 companies, Under 10 employees is the largest detected band. Google Tag Manager is first at 97.6%, leaving Draftpress HFCM, PixelYourSite and Adobe Dynamic Tag Management to compete for a small residual share.
10–50 employees
97.5% of band
The 10–50 employees band contains 13,551 companies and looks almost the same at the front. Google Tag Manager is first at 97.5%, while the other three systems remain minority choices.
Over 50 employees
97.9% of band
Over 50 employees is much smaller at 2,253 companies, but it is not more fragmented. Google Tag Manager is first at 97.9%, the highest leader share across the three bands.
How Tag manager 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 companies by Tag manager
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Frequently asked questions
What is the most-used Tag manager among UK companies?
How many UK companies have a detectable Tag manager?
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How is Tag manager usage detected?
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What is the best Tag manager for UK companies?
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