Most-Used Translation & localisation by UK Companies (2026)
Detected translation and localisation market share across 2,708 UK companies, with WPML the most-used system at 48.5% of detectable installs.
Across 2,066,481 trading UK companies, 2,708 have a detectable Translation & localisation system. Five systems are detected, with WPML accounting for 48.5% (1,314), ahead of Polylang at 21.8% (589) and Weglot at 17.3% (469).
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Smaller employers dominate the detected base: 1,885 companies sit under 10 employees, 701 have 10–50 employees, and 122 have over 50 employees. WPML is first in all three bands, with 49.1% under 10 employees, 46.8% among 10–50 employees, and 50.0% over 50 employees.
The tail is still visible among the five detected systems. Translate WordPress accounts for 8.0% (216), while GTranslate app accounts for 5.1% (138).
2,708
Companies with detected Translation & localisation
Of 2,066,481 UK companies
0.1%
Detection rate
2026
5
Systems detected
In this category
48.5%
Leader share
WPML
UK companies Translation & localisation market share
Translation & localisation compared
| System | UK companies | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| WPML | 1,302 | 48.1% | 5 | 29.2% | Micro-business websites, broadest detected share |
| Polylang | 592 | 21.9% | 5 | 30.2% | Micro-business websites, secondary share |
| Weglot | 470 | 17.4% | 6 | 27.9% | Small-company websites, third-largest share |
| Translate WordPress | 216 | 8% | — | — | Buy these companies as a spreadsheet → |
| GTranslate app | 138 | 5.1% | — | — | 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 Translation & localisation system shifts with company size: among UK companies with under 10 employees, WPML leads at 49.1% of the 1,885 with a detectable system; among UK companies with 10–50 employees, WPML leads at 46.8% of the 701 with a detectable system; and among UK companies with over 50 employees, WPML leads at 50% of the 122 with a detectable system.
Under 10 employees
49.1% of band
This is the largest detected band, with 1,885 companies and a WPML share of 49.1%. Polylang, Weglot, Translate WordPress and GTranslate app make up the named alternatives across a market mostly made up of very small employers.
10–50 employees
46.8% of band
The 10–50 employee band covers 701 companies, and WPML has the largest detected share at 46.8%. Competition remains split across Polylang, Weglot, Translate WordPress and GTranslate app rather than shifting to a separate mid-market system.
Over 50 employees
50% of band
Only 122 detected companies sit above 50 employees, so shares are more exposed to small count changes. WPML accounts for 50.0%, with the remaining detected usage sitting across the same four alternatives named in the overall market.
How Translation & localisation 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 companies by Translation & localisation
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Frequently asked questions
What is the most-used Translation & localisation among UK companies?
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