Company lists · Data refreshed September 2026

Top 25 Multivariate testing firms worldwide

RevenueBase identified 479 company matches for multivariate testing firms worldwide as of September 2026 and tracks 3,985 professional contacts across them, including 1,751 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for multivariate testing firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026. Country and city lists for multivariate testing firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
479Companies
3,985Contacts tracked
1,751Verified emails
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The 25 largest multivariate testing firms worldwide

Ranked by team size
Top 25 of 479 company matches for multivariate testing firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchParis, FranceHQ recorded Sep 20, 2026201-500334 contacts →

Exact match

“At AB Tasty, we’re your partner for pushing great ideas even further through optimization.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchNew Delhi, IndiaHQ recorded Sep 20, 2026201-500306 contacts →

Exact match

“Running an A/B testing program is tricky.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchParis, FranceHQ recorded Sep 20, 202651-200230 contacts →

Exact match

“Kameleoon empowers brands to build better products and digital experiences.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200185 contacts →

Exact match

“EchoLogyx started with a simple idea – provide test development and QA support to the Conversion Rate Optimization teams.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchAtlanta, GA, United StatesHQ recorded Sep 20, 2026201-500180 contacts →

Exact match

“30% conversion lift on your website in 90 days through predictive CRO- Prediction engine scrapes websites to find winning A/B tests from other companies- Full-service team does…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchNew York City, NY, United StatesHQ recorded Sep 20, 20261,001-5,000128 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200112 contacts →

Exact match

“GAIN Conversion is the world's leading CRO agency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchNew Delhi, IndiaHQ recorded Sep 20, 202651-20094 contacts →

Exact match

“One of the first Conversion Rate Optimization Agencies out of India.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20091 contacts →

Exact match

“Tailor Every Touchpoint.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchHelsinki, FinlandHQ recorded Sep 20, 202651-20082 contacts →

Exact match

“Leadoo Marketing Technologies was founded with a mission to make websites convert more effectively.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchHayward, CA, United StatesHQ recorded Sep 20, 202651-20061 contacts →

Exact match

“High-Velocity A/B Test Development & CRO Support Agency BrillMark delivers seamless A/B test development, CRO support, and custom web development, integrating with your team to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchClaymont, DE, United StatesHQ recorded Sep 20, 202611-5061 contacts →

Exact match

“Convert Experiences delivers enterprise-grade experimentation - without the baggage.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchLa Mirada, CA, United StatesHQ recorded Sep 20, 202611-5059 contacts →

Exact match

“Make the Most of Every Visitor!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchÖstermalm, SwedenHQ recorded Sep 20, 202651-20056 contacts →

Exact match

“We are Conversionista, the #1 CRO & Growth consultancy in the Nordics since 2010.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20050 contacts →

Exact match

“Swayable | Persuasion Intelligence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“Established in 2006, Invesp is the 2nd agency to specialize in conversion rate optimization in North America.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchNew York, United StatesHQ recorded Sep 20, 202611-5042 contacts →

Exact match

“At Omniconvert, we are the the specialized data-driven solution for experimentation in eCommerce and retail, empowering companies to improve the conversion rate and customer…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchParis, FranceHQ recorded Sep 20, 202611-5041 contacts →

Exact match

“Webyn is the AI co-pilot dedicated to online conversions optimization, offering a complete solution to propel your website to success.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchAustin, TX, United StatesHQ recorded Sep 20, 202611-5039 contacts →

Exact match

“Speero is an experimentation agency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchEgham, United KingdomHQ recorded Sep 20, 202611-5037 contacts →

Exact match

“Webtrends Optimize is an unrestricted, full-stack Conversion Rate Optimisation (CRO) solution with an ‘all-inclusive’ model - all tools and features are available to all users.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchPoznań, PolandHQ recorded Sep 20, 202611-5035 contacts →

Exact match

“Webmetric is an SEO and UX agency based in Poznań, helping companies effectively grow their online business.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchLondon, UkraineHQ recorded Sep 20, 202611-5033 contacts →

Exact match

“Turum-burum is a UX/UI and CRO company with 16 years of experience, primarily focused on eCommerce, SaaS, Web3, and B2B Tech projects.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchWarsaw, PolandHQ recorded Sep 20, 202611-5032 contacts →

Exact match

“Conversion to pierwsza w Polsce firma, która koncentruje się na optymalizacji konwersji w sklepach internetowych.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchKnoxville, TN, United StatesHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“At QualPro, results are everything.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchAuburndale, MA, United StatesHQ recorded Sep 20, 202651-20030 contacts →

Exact match

“SiteSpect is the enterprise-grade optimization and experimentation engine, now part of Monetate, the industry’s most comprehensive platform for personalization, experimentation…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 479 multivariate testing firms worldwide

See the full list, filter by size, metro and specialty, and access 1,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Multivariate testing firms worldwide at a glance

As of Sep 20, 2026
43.9%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
4.0%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
359
11-50
95
51-200
17
201-500
4
1,001-5,000
2
5,001-10,000
1
10001+
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for multivariate testing firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “multivariate testing firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 1,751 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Multivariate testing firms by location

3 lists · largest first

Every Multivariate testing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “multivariate testing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many multivariate testing firms are there worldwide?

RevenueBase identified 479 company matches for multivariate testing firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AB Tasty tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most multivariate testing firms?

The United States leads with 94 companies, followed by the United Kingdom (46) and the Netherlands (28). Every multivariate testing firms list by country and city is linked on this page.

Which city has the most multivariate testing firms?

London leads with 19 company records, followed by Paris (11) and San Francisco (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,751 professional contacts with verified work emails tracked across these 479 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.