Company lists · Data refreshed November 2026

Top 25 A/b testing agencies worldwide

RevenueBase identified 1,058 company matches for a/b testing agencies worldwide as of November 2026 and tracks 10,634 professional contacts across them, including 4,492 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for a/b testing agencies 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 November 6, 2026. Country and city lists for a/b testing agencies 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 Nov 6, 2026 How this list was built
1,058Companies
10,634Contacts tracked
4,492Verified emails
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The 25 largest a/b testing agencies worldwide

Ranked by team size
Top 25 of 1,058 company matches for a/b testing agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchNew York, NY, United StatesHQ recorded Nov 6, 20265,001-10,0002,407 contacts →

Exact match

“KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Nov 6, 2026201-500306 contacts →

Exact match

“AB Tasty started when two founders, Alix de Sagazan and Rémi Aubert, struck out on their own with a simple idea: experimentation and personalization should be faster and easier…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNew Delhi, IndiaHQ recorded Nov 6, 2026201-500288 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchParis, FranceHQ recorded Nov 6, 202651-200247 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026201-500205 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200200 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNottingham, United KingdomHQ recorded Nov 6, 202651-200186 contacts →

Exact match

“We're a performance marketing agency setting the new standard of excellence through our people, our performance and our technology, with offices in Manchester, Nottingham, London…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000183 contacts →

Exact match

“KINESSO UK is the award-winning, tech-driven performance marketing agency delivering actionable growth for direct clients and agency partners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-200147 contacts →

Exact match

“Monetate is the most comprehensive platform for digital personalization, experimentation, and optimization-built for enterprise scale and powered by agentic AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202651-200132 contacts →

Exact match

“Unbounce is the leading landing page platform for building, testing, and optimizing high-converting pages.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 2026201-500132 contacts →

Exact match

“Narrative combines a proprietary A/B video testing platform with experienced in-house producers to create paid social creative at scale for the world’s leading performance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,000116 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200110 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCosta Mesa, CA, United StatesHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“1st & only marketing agency to ever win Glassdoor's #1 Best Place To Work Award (2022) KlientBoost is the performance marketing agency with the most published wins (case studies…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202651-20093 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“Tailor Every Touchpoint.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBoulogne-billancourt, FranceHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Dataventure was born from the merger of two expert companies in digital acquisition, data & performance marketing: the Cardata Group and Adventure Conseil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“ETML is a partner of choice for brands that are chasing sustainable growth in today’s world of go big or go home.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRockaway, NJ, United StatesHQ recorded Nov 6, 202611-5080 contacts →

Exact match

“Companies struggle to validate their marketing effectiveness.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHelsinki, FinlandHQ recorded Nov 6, 202651-20078 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBrooklyn, NY, United StatesHQ recorded Nov 6, 202611-5076 contacts →

Exact match

“Helping e-commerce companies optimize profits and improve margins by providing a suite of tools to run tailored experiments on prices, discounts, shipping rates, content…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchParis, FranceHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Formerly a gaming studio, Addict Mobile is a performance marketing agency specializing in profitable User Acquisition for mobile and web since 2015.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“We are ROAST.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHayward, CA, United StatesHQ recorded Nov 6, 202651-20064 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact match🌍 Worldwide, United StatesHQ recorded Nov 6, 202611-5064 contacts →

Exact match

“Aimers is a B2B SaaS marketing agency helping SaaS and tech companies turn ad spend into qualified pipeline, not just clicks or leads.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,058 a/b testing agencies worldwide

See the full list, filter by size, metro and specialty, and access 4,492 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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A/b testing agencies worldwide at a glance

As of Nov 6, 2026
42.2%Verified-email coverage
10.1Average contacts per company
1-10Median size (employees)
3.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
755
11-50
243
51-200
42
201-500
10
501-1,000
1
1,001-5,000
2
5,001-10,000
2
10001+
3

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 a/b testing agencies are linked below.
What qualifies
Company records worldwide whose business descriptions match “a/b testing agencies” 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 4,492 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 November 6, 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.

A/b testing agencies by location

11 lists · largest first

Every A/b testing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “a/b testing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many a/b testing agencies are there worldwide?

RevenueBase identified 1,058 company matches for a/b testing agencies worldwide as of November 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?

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

Which country has the most a/b testing agencies?

The United States leads with 224 companies, followed by the United Kingdom (78) and India (47). Every a/b testing agencies list by country and city is linked on this page.

Which city has the most a/b testing agencies?

London leads with 41 company records, followed by New York (27) and Paris (16).

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 4,492 professional contacts with verified work emails tracked across these 1,058 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 November 6, 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.