Company lists · Data refreshed November 2026

Top 20 Custom development agencies based in Paris, France

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 779 companies tracked

RevenueBase identified 779 company matches for custom development agencies associated with Paris, France as of November 2026 and tracks 12,095 professional contacts across them, including 4,242 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers company matches for custom development agencies associated with Paris, France, 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.

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

779Companies

12,095Contacts tracked

4,242Verified emails

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The 20 largest custom development agencies based in Paris, France

Ranked by team size

Top 20 of 779 company matches for custom development agencies based in Paris, France, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Groupe SII	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	5,212 contacts →
	Exact match “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Ouidou	Exact match	Paris, FranceHQ recorded Nov 6, 2026	201-500	289 contacts →
	Exact match “Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	HR Team Group	Exact match	Paris, FranceHQ recorded Nov 6, 2026	501-1,000	136 contacts →
	Exact match “Since 2005, HR Team, Digital Services Company, has been ensuring a digital strategy in line with the ambition of its customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Tritux	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	103 contacts →
	Exact match “Depuis sa création en 2006, TRITUX a développé une expertise et un savoir faire lui permettant de mener à bien tous ses projets de l’amont à l’aval.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Simplébo	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	89 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	MARGO	Exact match	Paris, FranceHQ recorded Nov 6, 2026	201-500	84 contacts →
	Exact match “More than a simple IT consulting group, MARGO is an alchemy of talents with constantly enriched expertise, always encouraged to be dynamic and to flourish.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	KARRÉ	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	80 contacts →
	Exact match “Karré s’est lancée en 2020!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Abbeal	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	74 contacts →
	Exact match “The tech we wished existed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	FWA	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	71 contacts →
	Exact match “Created in 2005, FWA is a software engineering company, specialized in business computing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Ipsosenso	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	65 contacts →
	Exact match “Ipsosenso manages from end-to-end (design, development and outsourcing) e-applications projects of large accounts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Arkeup	Exact match	Paris, FranceHQ recorded Nov 6, 2026	501-1,000	64 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Diggers	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	60 contacts →
	Exact match “Diggers est un cabinet de conseil facilitateur de projets et de transformations, spécialisé dans les métiers de l'IT (développement, data & IA, devops, cloud) et une agence de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Algofi	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	59 contacts →
	Exact match “Algofi est la filiale experte IT & Finance du Groupe HUMADE, groupe multi-sectoriel d’ESN.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Vxplore Technologies	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	53 contacts →
	Exact match “At Vxplore Technologies, innovation remains at the center of our existence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	code.store	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	52 contacts →
	Exact match “code.store designs and builds custom software with AI at every step, from specs to production: ERPs, CMS and media platforms, insurance and mobile apps.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Steamulo	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	50 contacts →
	Exact match “STEAMULO - Digital & IA Factory STEAMULO est une équipe d’experts techniques apportant des solutions innovantes aux problématiques web, mobile & IA de ses clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	YATEO	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	44 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	BE API	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	41 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Fidesio	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	41 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Ecocea Technologies	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	38 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “custom development agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 20 of 779 custom development agencies based in Paris, France

See the full list, filter by size, metro and specialty, and access 4,242 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Custom development agencies based in Paris, France at a glance

As of Nov 6, 2026

35.1%Verified-email coverage

15.5Average contacts per company

1-10Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

560

11-50

178

51-200

201-500

501-1,000

5,001-10,000

10001+

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 779 companies.

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.
What qualifies: Company records associated with Paris, France whose business descriptions match “custom development 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 4,242 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.

Custom development agencies by metro in France

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 “custom development agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom development agencies are there based in Paris, France?

RevenueBase identified 779 company matches for custom development agencies associated with Paris, France 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?

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

Which city in France has the most custom development agencies?

Paris leads France with 779 company records, followed by Lyon (143) and Toulouse (92).

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 4,242 professional contacts with verified work emails tracked across these 779 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.