Company lists · Data refreshed September 2026

Top 25 Conversion rate optimization software companies based in France

RevenueBase identified 72 conversion rate optimization software companies headquartered in France as of September 2026 and tracks 370 professional contacts across them, including 161 with verified work emails and 19 with mobile numbers. Paris is the largest hub.

This list covers conversion rate optimization software companies headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
72Companies
370Contacts tracked
161Verified emails
19Mobile numbers
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The 25 largest conversion rate optimization software companies based in France

Ranked by team size
Top 25 of 72 conversion rate optimization software companies based in France, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to conversion rate optimization software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceParis, France11-5040 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 1, 2026
2Indirect evidenceParis, France11-5039 contacts →

Indirect evidence

“At Dataiads, we empower brands to succeed with Shopping ads everywhere.”

Source: RevenueBase Database · checked Sep 1, 2026
3Strong evidenceParis, France11-5036 contacts →

Strong evidence

“BEYABLE's AI-powered solution suite enables E-Commerce and Retailers to maximize the value of their website traffic- Boost conversion rates - Increased margins - Stock clearance -…”

Source: RevenueBase Database · checked Sep 1, 2026
4Partial evidenceLyon, France1-1023 contacts →

Partial evidence

“E-commerce sales increase only 2 ways: 1) Massive ads spend with lesser conversion.”

Source: RevenueBase Database · checked Sep 1, 2026
5Indirect evidenceMetz, France11-5022 contacts →

Indirect evidence

“UX-KEY analyses user behaviour to improve intuitiveness and ergonomics.”

Source: RevenueBase Database · checked Sep 1, 2026
6Indirect evidenceParis, France11-5017 contacts →

Indirect evidence

“Welyft is a data-marketing agency that helps brands deliver an exceptional customer experience through data & experimentation (A/B testing, personalization, user testing, UX…”

Source: RevenueBase Database · checked Sep 1, 2026
7Indirect evidenceParis, France11-5016 contacts →

Indirect evidence

“Intelligent Popups Saas For Online Marketers.”

Source: RevenueBase Database · checked Sep 1, 2026
8Partial evidenceParis, France11-5012 contacts →

Partial evidence

“Nous aidons les marques à multiplier les opportunités de conversion, vente et lead sur leur site internet, sans aucun développement additionnel.”

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceWasquehal, France1-1011 contacts →

Partial evidence

“Optimal Ways is a niche agency specialized in Digital Analytics and Optimization for ecommerce.”

Source: RevenueBase Database · checked Sep 1, 2026
10Indirect evidenceLyon, France1-108 contacts →

Indirect evidence

“Variant Marketing is a French based digital agency that will get your website qualified traffic through SEO and SEA, and make it convert through efficient website and landing page…”

Source: RevenueBase Database · checked Sep 1, 2026
11Indirect evidenceParis, France11-508 contacts →

Indirect evidence

“Depuis 10 ans Altics teste et optimise les sites marchands.”

Source: RevenueBase Database · checked Sep 1, 2026
12Indirect evidenceHerouville-Saint-Clair, France1-107 contacts →

Indirect evidence

“Besoin de nouveaux clients?”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidenceNantes, France1-106 contacts →

Indirect evidence

“Notre mission est de faire grandir les organisations et les équipes.”

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceLille, France1-106 contacts →

Indirect evidence

“Fort de nos 13 années d'expérience, nous avons acquis la certitude que le CRO est un gigantesque générateur de valeur accessible à toutes les organisations.”

Source: RevenueBase Database · checked Sep 1, 2026
15Partial evidenceParis, France1-105 contacts →

Partial evidence

“Welcome to appYuser, the future of digital optimization!”

Source: RevenueBase Database · checked Sep 1, 2026
16Partial evidenceLille, France1-104 contacts →

Partial evidence

“SDLV est une agence UX/CRO spécialisée dans l'optimisation de l'expérience utilisateur et de l'optimisation du taux de conversion pour les sites web.”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceParis, France1-102 contacts →

Indirect evidence

“Les Lutains, ce sont 4 petits robots prêts à tout pour optimiser ta landing page!”

Source: RevenueBase Database · checked Sep 1, 2026
18Indirect evidenceParis, France1-102 contacts →

Indirect evidence

“Cogito, c'est l'agence qui pense à ta place.”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceParis, France1-102 contacts →

Indirect evidence

“Acquérir du trafic ciblé sur votre site et convertir vos visiteurs en clients”

Source: RevenueBase Database · checked Sep 1, 2026
20Indirect evidenceParis, France1-101 contacts →

Indirect evidence

“GreenRed, c’est Votre nouvelle solution pour améliorer votre marketing digital.”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceParis, France1-101 contacts →

Partial evidence

“Growing your Conversion and Customer Life Time Value is vital as the cost of media is booming.”

Source: RevenueBase Database · checked Sep 1, 2026
22Strong evidenceCabestany, France1-101 contacts →

Strong evidence

“Unsatisfied with your website conversion rates?”

Source: RevenueBase Database · checked Sep 1, 2026
23Strong evidenceNice, France1-101 contacts →

Strong evidence

“We are expert in conversion rate optimization.”

Source: RevenueBase Database · checked Sep 1, 2026
24Partial evidenceParis, France1-101 contacts →

Partial evidence

“E-commerçants, exploitez vos données de Search pour plus de conversions et un meilleur coût d'acquisition!”

Source: RevenueBase Database · checked Sep 1, 2026
25Partial evidenceBastia, France1-101 contacts →

Partial evidence

“Agence spécialisée en Acquisition et Conversion.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 72 conversion rate optimization software companies based in France

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Conversion rate optimization software companies based in France at a glance

As of Sep 1, 2026
43.5%Verified-email coverage
5.1%Mobile-number coverage
5.1Average contacts per company
1-10Median size (employees)
41.7%Largest-city concentration · Paris
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
12
51-200
2
1,001-5,000
1

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among conversion rate optimization software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in France whose own description of what they do matches “conversion rate optimization software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names conversion rate optimization software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among conversion rate optimization software companies, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 161 across the full list. 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 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Conversion rate optimization software companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names conversion rate optimization software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many conversion rate optimization software companies are there based in France?

RevenueBase identified 72 conversion rate optimization software companies headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

WEBYN, headquartered in Paris, tops this list with the largest team on record.

Which city has the most conversion rate optimization software companies?

Paris leads with 30 headquartered companies, followed by Lyon (6) and Nantes (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 161 verified decision-maker contacts tracked across these 72 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 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 Smart Search, 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.