A/B testing Used by UK B2B Companies: Market Share (2026)
Detected A/B testing usage across 2,055 of 112,345 trading UK B2B companies, with Trident AB at 69.0% of detections.
Among 112,345 trading UK B2B companies, 2,055 have a detectable A/B testing system, spread across 8 systems. Trident AB accounts for 69.0% of those companies (1,417), ahead of VWO at 10.7% (220), Zoho PageSense at 9.1% (186) and Google Optimize at 6.2% (127).
Read more
Usage is concentrated among smaller employers. The Under 10 employees band contains 1,361 companies and Trident AB has 69.9%; the 10–50 employees band contains 610 companies and Trident AB has 69.0%.
Larger employers are a smaller and less concentrated group. In the Over 50 employees band, 84 companies have an identifiable system and Trident AB has 53.6%, while the long tail is visible in Optimizely at 2.6% (54), Varify at 2.1% (44), Convert Experiences at 1.6% (32) and AB Tasty at 0.9% (19).
2,055
B2B with detected A/B testing
Of 112,345 UK B2B
1.8%
Detection rate
2026
8
Systems detected
In this category
69%
Leader share
Trident AB
UK B2B A/B testing market share
Share of the 2,055 UK B2B with a detectable system. As of June 2026.
A/B testing compared
| System | UK B2B | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| Trident AB | 1,417 | 69% | 6 | 20.4% | Median headcount 6, 69.0% share |
| VWO | 220 | 10.7% | 7 | 37.3% | Median headcount 7, 10.7% share |
| Zoho PageSense | 186 | 9.1% | 6 | 24.2% | Median headcount 6, 9.1% share |
| Google Optimize | 127 | 6.2% | 6 | 29.9% | Median headcount 6, 6.2% share |
| Optimizely | 54 | 2.6% | 5 | 29.6% | Median headcount 5, 2.6% share |
| Varify | 44 | 2.1% | — | — | Buy these companies as a spreadsheet → |
| Convert Experiences | 32 | 1.6% | — | — | Buy these companies as a spreadsheet → |
| AB Tasty | 19 | 0.9% | — | — | 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 A/B testing system shifts with company size: among UK B2B with under 10 employees, Trident AB leads at 69.9% of the 1,361 with a detectable system; among UK B2B with 10–50 employees, Trident AB leads at 69% of the 610 with a detectable system; and among UK B2B with over 50 employees, Trident AB leads at 53.6% of the 84 with a detectable system.
Under 10 employees
69.9% of band
1,361 companies with an identifiable A/B testing system sit in this band, and Trident AB has the largest share at 69.9%. VWO, Zoho PageSense and Google Optimize are the next largest systems overall at 10.7% (220), 9.1% (186) and 6.2% (127).
10–50 employees
69% of band
The 10–50 employees band contains 610 companies, with Trident AB on 69.0%. Its share is close to the Under 10 employees pattern, while VWO, Zoho PageSense and Google Optimize form the main named alternatives overall.
Over 50 employees
53.6% of band
The Over 50 employees band is smaller at 84 companies, and Trident AB has 53.6%. That is lower than its 69.9% share in Under 10 employees and 69.0% share in 10–50 employees, leaving more room for the other named systems.
How A/B testing 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 B2B by A/B testing
Related directories
Frequently asked questions
What is the most-used A/B testing among UK B2B companies?
How many UK B2B companies have a detectable A/B testing?
What is a A/B testing?
How is A/B testing usage detected?
Which has more UK B2B companies, Trident AB or VWO?
What is the best A/B testing for UK B2B companies?
Buy all 2,055 companies as a spreadsheet.
One Excel/CSV file with company details, websites and key data — yours to download and use.