Company lists · Data refreshed September 2026

Top 25 Custom software development agencies based in Paris, France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 9, 2026 431 companies tracked

RevenueBase identified 431 custom software development agencies headquartered in Paris, France as of September 2026 and tracks 2,893 professional contacts across them, including 747 with verified work emails and 98 with mobile numbers. Paris is the largest hub.

This list covers custom software development 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 9, 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 9, 2026 86% judged on-target in blind review

431Companies

2,893Contacts tracked

747Verified emails

98Mobile numbers

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

Ranked by team size

Top 25 of 431 custom software development agencies based in Paris, France, ranked by team size, largest first. Data refreshed Sep 9, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development 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	The Codingmachine	Partial evidence	Paris, FranceHQ checked Sep 9, 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 9, 2026
2	Ipsosenso	Partial evidence	Paris, FranceHQ checked Sep 9, 2026	51-200	64 contacts →
	Partial evidence “Ipsosenso manages from end-to-end (design, development and outsourcing) e-applications projects of large accounts.” Source: RevenueBase Database · checked Sep 9, 2026
3	L'atelier	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	60 contacts →
	Indirect 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 9, 2026
4	Fidesio	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	51-200	50 contacts →
	Indirect 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 9, 2026
5	Steamulo	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	49 contacts →
	Indirect 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 9, 2026
6	YATEO	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	43 contacts →
	Indirect evidence “Depuis plus de 20 ans, Yateo accompagne ses clients sur des solutions innovantes et sur mesure en répondant à tous types de problématiques digitales : visibilité, productivité…” Source: RevenueBase Database · checked Sep 9, 2026
7	BE API	Indirect evidence	Paris, FranceHQ checked Sep 9, 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 9, 2026
8	Kernix	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	38 contacts →
	Indirect 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 9, 2026
9	Ecocea Technologies	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	36 contacts →
	Indirect evidence “Chez Ecocea Technologies, nous mettons notre passion de la technologie au service de vos projets #e-commerce : SOLUTIONS Nous développons des solutions e-commerce et relation…” Source: RevenueBase Database · checked Sep 9, 2026
10	Poyesis	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	36 contacts →
	Indirect 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 9, 2026
11	Énéance	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	31 contacts →
	Indirect evidence “Nous sommes Énéance, spécialiste de la conception et du développement d’applications web et mobiles sur mesure.” Source: RevenueBase Database · checked Sep 9, 2026
12	Aptineo	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	51-200	27 contacts →
	Indirect evidence “APTINEO, cabinet de conseil en SI, accompagne avec succès de grands groupes depuis 2008.” Source: RevenueBase Database · checked Sep 9, 2026
13	Axelites	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	26 contacts →
	Indirect 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 9, 2026
14	Devcorp	Indirect evidence	Paris, FranceHQ checked Sep 9, 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 9, 2026
15	Noesio	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	24 contacts →
	Indirect evidence “Expert des solutions digitales dédiées au grand public et aux professionnels, Noesio est une communauté d’ingénieurs dont la vocation est de répondre à vos enjeux de croissance de…” Source: RevenueBase Database · checked Sep 9, 2026
16	Timsoft	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	23 contacts →
	Indirect evidence “Grand Compte, PME, Start-Up, du secteur industriel, marchand, bancaire, les équipes de Timsoft vous accompagnent.” Source: RevenueBase Database · checked Sep 9, 2026
17	Evodev	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	1-10	22 contacts →
	Indirect 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 9, 2026
18	Feel And Clic	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	21 contacts →
	Indirect 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 9, 2026
19	Gettingapp	Partial evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	21 contacts →
	Partial evidence “We offer high-end full-stack development services at prices tailored to your needs.” Source: RevenueBase Database · checked Sep 9, 2026
20	SLOOP	Indirect evidence	Paris, FranceHQ checked Sep 9, 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 9, 2026
21	MEG Digital	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	20 contacts →
	Indirect evidence “MEG Digital est une ESN innovante qui combine expertise technologique, agilité business et culture entrepreneuriale pour accompagner les entreprises dans leurs projets digitaux…” Source: RevenueBase Database · checked Sep 9, 2026
22	Serum And CO	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 9, 2026
23	ZSOFT	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	19 contacts →
	Indirect evidence “Zsoft Consulting est une société de technologies, spécialisée dans les métiers d'ingénierie de développement logiciel.” Source: RevenueBase Database · checked Sep 9, 2026
24	Softsales Consulting	Strong evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	19 contacts →
	Strong 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 9, 2026
25	Netdevices	Indirect evidence	Paris, FranceHQ checked Sep 9, 2026	11-50	18 contacts →
	Indirect evidence “Chez ND, nous innovons à vos côtés et nous vous accompagnons dans vos projets web, mobile, cloud, data, IA!” Source: RevenueBase Database · checked Sep 9, 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 software development 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 software development agencies.
Partial evidence: Its own public description names part of custom software development agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development 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 431 custom software development agencies based in Paris, France

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

As of Sep 9, 2026

25.8%Verified-email coverage

3.4%Mobile-number coverage

6.7Average contacts per company

1-10Median size (employees)

84.2%Largest-city concentration · Paris

Sep 9, 2026Page data refreshed

Companies by employee count

1-10

306

11-50

108

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

6760–30

6831–60

061–90

090–180

3180+

Company record updated

Median 64.0d

00–30

1,40131–60

1,05761–90

29690–180

139180+

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 software development 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 software development 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 software development 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 software development 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, 747 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 9, 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 software development agencies by metro in France

Custom software development agencies in Paris363
Custom software development agencies in Lyon80
Custom software development agencies in Toulouse52
Custom software development agencies in Bordeaux50
Custom software development agencies in Marseille31
Custom software development agencies in Nantes29
Custom software development agencies in Strasbourg28

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 software development 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 software development agencies are there based in Paris, France?

RevenueBase identified 431 custom software development 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?

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

Which city has the most custom software development agencies?

Paris leads with 363 headquartered companies, followed by Lyon (80) and Toulouse (52).

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 747 verified decision-maker contacts tracked across these 431 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 9, 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.