Company lists · Data refreshed September 2026

Top 25 Custom web software agencies based in Paris, France

Name: Custom web software agencies based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 564 companies tracked

RevenueBase identified 564 custom web software agencies headquartered in Paris, France as of September 2026 and tracks 3,468 professional contacts across them, including 796 with verified work emails. Paris is the largest hub.

This list covers custom web software agencies headquartered in Paris, 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 24, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

564Companies

3,468Contacts tracked

796Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest custom web software agencies based in Paris, France

Ranked by team size

Top 25 of 564 custom web software agencies based in Paris, France, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom web software agencies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Simplébo	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	51-200	99 contacts →
	Partial evidence “Agence web la mieux notée de France sur Google et Trustpilot, Simplébo aide des milliers de professionnels, à travers toute la France, à développer leur activité en ligne via un…” Source: RevenueBase Database · checked Sep 24, 2026
2	The Codingmachine	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	51-200	93 contacts →
	Partial evidence “The Coding Machine is an IT company that provides bespoke web & mobile development.” Source: RevenueBase Database · checked Sep 24, 2026
3	Arkeup	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	501-1,000	64 contacts →
	Partial evidence “Arkeup conçoit et met en œuvre pour ses clients des applications et des sites webs innovants, notamment dans les domaines du commerce électronique, de la mobilité et du…” Source: RevenueBase Database · checked Sep 24, 2026
4	L'atelier	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	60 contacts →
	Partial evidence “L’Atelier est une société de conseil tech au service des entreprises pour la création de produits web et mobiles.” Source: RevenueBase Database · checked Sep 24, 2026
5	Fidesio	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	51-200	50 contacts →
	Partial evidence “Located in the heart of Paris, our team puts all its expertise to their clients, to facilitate the implementation and sustainability of their projects to create websites and web…” Source: RevenueBase Database · checked Sep 24, 2026
6	Steamulo	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	49 contacts →
	Partial evidence “STEAMULO - Digital & IA Factory STEAMULO est une équipe d’experts techniques apportant des solutions innovantes aux problématiques web, mobile & IA de ses clients.” Source: RevenueBase Database · checked Sep 24, 2026
7	BE API	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	40 contacts →
	Indirect evidence “Since its creation, the agency has been a pioneer in industrialized WordPress projects and worked hard to democratize the professional use of WordPress in France.” Source: RevenueBase Database · checked Sep 24, 2026
8	Kernix	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	38 contacts →
	Partial evidence “Kernix est une agence digitale experte en développement d'applications web et mobile : Kernix propose des solutions sur mesure et accompagne ses clients tout au long de leur…” Source: RevenueBase Database · checked Sep 24, 2026
9	Poyesis	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	36 contacts →
	Partial evidence “Poyesis est une agence digitale spécialisée dans la conception et le développement de solutions web, mobiles et IA sur mesure.” Source: RevenueBase Database · checked Sep 24, 2026
10	Maecia	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	32 contacts →
	Indirect evidence “A propos de Maecia : Avec une trentaine de collaborateurs, Maecia est une agence digitale qui se caractérise par la performance et l'innovation digitales.” Source: RevenueBase Database · checked Sep 24, 2026
11	Énéance	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	31 contacts →
	Partial evidence “Nous sommes Énéance, spécialiste de la conception et du développement d’applications web et mobiles sur mesure.” Source: RevenueBase Database · checked Sep 24, 2026
12	Axelites	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	26 contacts →
	Partial evidence “Nous sommes une société spécialisée dans le développement de sites web et de logiciels sur mesure pour tout type d'entreprise.” Source: RevenueBase Database · checked Sep 24, 2026
13	Devcorp	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	25 contacts →
	Indirect evidence “Devcorp est une agence de développement informatique et de marketing digital, dont les capacités larges et diversifiées dans le secteur du multimédia et d'Internet permettent de…” Source: RevenueBase Database · checked Sep 24, 2026
14	Jolicode	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	22 contacts →
	Partial evidence “JoliCode is a Web expertise agency.” Source: RevenueBase Database · checked Sep 24, 2026
15	Whodunit Agence Wordpress	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “La qualité de service d’une grande agence, la réactivité et la souplesse d’une structure à taille humaine.” Source: RevenueBase Database · checked Sep 24, 2026
16	Evodev	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	1-10	22 contacts →
	Partial evidence “L’équipe Evodev vous aide à passer de l'idée à la web-app en un Que vous ayez un projet de marketplace, CRM, SaaS ou encore de réseau social, nous le développons pour vous en 6…” Source: RevenueBase Database · checked Sep 24, 2026
17	Feel And Clic	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	21 contacts →
	Partial evidence “Feel & Clic a pour mission d'accompagner ses clients PME et Grands Groupes dans le choix et la réalisation de solutions applicatives Web et mobiles adaptées à leurs besoins…” Source: RevenueBase Database · checked Sep 24, 2026
18	SLOOP	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence “Implanté à Nantes et à Paris, SLOOP est une agence digitale qui offre à ses clients un accompagnement global, de la stratégie à la création, du contenu au développement, du…” Source: RevenueBase Database · checked Sep 24, 2026
19	Softsales Consulting	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	19 contacts →
	Partial evidence “Founded on a passion for solving complex challenges, Softsales Consulting works with its clients through each and every step of the software development process, from…” Source: RevenueBase Database · checked Sep 24, 2026
20	Scroll	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	18 contacts →
	Partial evidence “Nous développons des sites internet et des applications web et mobile, sur mesure et en un temps record!” Source: RevenueBase Database · checked Sep 24, 2026
21	Agitex	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	18 contacts →
	Indirect evidence “AGITEX : L’excellence numérique, un modèle hybride au service de votre réussite.” Source: RevenueBase Database · checked Sep 24, 2026
22	Improba	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	17 contacts →
	Partial evidence “Atelier digital : nous concevons, développons et faisons évoluer des applications (mobile, Web, système), pour nos clients industriels, associatifs et dans les services.” Source: RevenueBase Database · checked Sep 24, 2026
23	Ingenius	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	16 contacts →
	Indirect evidence “Faites appel à Ingenius pour concevoir et construire des sites de haute qualité durables qui performent dans l’acquisition de clients Ingenius est une agence digitale spécialisée…” Source: RevenueBase Database · checked Sep 24, 2026
24	Varjak	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	15 contacts →
	Partial evidence “Varjak - Solutions Digitales Innovantes Nous transformons votre présence numérique avec des sites web et applications e-commerce sur-mesure.” Source: RevenueBase Database · checked Sep 24, 2026
25	Sooyoos	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	11-50	14 contacts →
	Partial evidence “Nous sommes une équipe d’experts en développement web.” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: custom web software agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names custom web software agencies.
Partial evidence: Its own public description names part of custom web software agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom web software agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 564 custom web software agencies based in Paris, France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 796 reachable decision-makers.

Free signup · no credit card

View the full list →

Custom web software agencies based in Paris, France at a glance

As of Sep 24, 2026

23.0%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Paris

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

445

11-50

105

51-200

201-500

501-1,000

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 564 companies.

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 custom web software agencies, 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 Paris, France whose own description of what they do matches “custom web software agencies”. 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 custom web software agencies), 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 custom web software agencies, and records with no verified work email. Companies headquartered outside Paris 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, 796 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 24, 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.

Custom web software agencies by metro in France

Custom web software agencies in Paris564
Custom web software agencies in Lyon127
Custom web software agencies in Bordeaux89
Custom web software agencies in Toulouse75
Custom web software agencies in Marseille65
Custom web software agencies in Montpellier49
Custom web software agencies in Lille48
Custom web software agencies in Nantes48
Custom web software agencies in Strasbourg35
Custom web software agencies in Rennes33

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 custom web software agencies, 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 custom web software agencies are there based in Paris, France?

RevenueBase identified 564 custom web software agencies headquartered in Paris, 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?

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

Which city has the most custom web software agencies?

Paris leads with 564 headquartered companies, followed by Lyon (127) and Bordeaux (89).

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 796 verified decision-maker contacts tracked across these 564 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 564 custom web software agencies based in Paris, France. Start with a free account, no credit card.

Download this list →

Related lists

Custom web software agencies by geography

Browse the directory

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.