Company lists · Data refreshed October 2026

Top 25 Network design and engineering firms based in France

Name: Network design and engineering firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 522 companies tracked

RevenueBase identified 522 company matches for network design and engineering firms associated with France as of October 2026 and tracks 6,587 professional contacts across them, including 1,561 with verified work emails. Paris is the largest hub.

This list covers company matches for network design and engineering firms associated with 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 October 18, 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 Oct 18, 2026 How this list was built

522Companies

6,587Contacts tracked

1,561Verified emails

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

The 25 largest network design and engineering firms based in France

Ranked by team size

Top 25 of 522 company matches for network design and engineering firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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	Cyllene	Exact match	Paris, FranceHQ recorded Oct 18, 2026	201-500	274 contacts →
	Exact match “Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2	CNS Communications	Exact match	Lyon, FranceHQ recorded Oct 18, 2026	51-200	221 contacts →
	Exact match “We are independent experts in networking and telecommunications.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3	H-Tech Supports	Exact match	Saint-leu-la-forêt, FranceHQ recorded Oct 18, 2026	51-200	103 contacts →
	Exact match “We at HTS provide the modern day IT and network solutions to the enterprise markets through an extensive range of managed IT support services to its worldwide clientele.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4	Sys1	Exact match	Saint-jean-d'illac, FranceHQ recorded Oct 18, 2026	51-200	102 contacts →
	Exact match “SYS1 est présent à Bordeaux en Nouvelle Aquitaine ainsi qu'en Occitanie et PACA avec son agence de Montpellier pour adresser les sujets ci dessous : ACTIVITÉS PRINCIPALES Étude…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5	Isitix	Exact match	FranceHQ recorded Oct 18, 2026	n/a	85 contacts →
	Exact match “Depuis 20 ans, Isitix accompagne vos projets informatiques et numériques.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6	Synapse Construction	Exact match	Écully, FranceHQ recorded Oct 18, 2026	51-200	72 contacts →
	Exact match “SYNAPSE Construction, société d'ingénierie bureau d'études techniques (BET) dans les métiers du bâtiment, répond aux besoins des donneurs d'ordres publics et privés.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7	AMD Blue	Exact match	Paris, FranceHQ recorded Oct 18, 2026	51-200	65 contacts →
	Exact match “La société AMD BLUE est née de l’intention de son président, Michel Delouya, de fonder une ESN (anciennement SSII) dans laquelle la qualité et l’accompagnement assidus du service…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8	Ambition Télécom & Réseaux	Exact match	Saint-priest, FranceHQ recorded Oct 18, 2026	11-50	61 contacts →
	Exact match “Ambition Telecom & Réseaux (AT & R) est un Bureau d’Etudes et de Maîtrise d’œuvre Telecom spécialisé dans la fibre optique fondé en 2007.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9	Lahocy	Exact match	Plérin, FranceHQ recorded Oct 18, 2026	51-200	59 contacts →
	Exact match “Bureau d'étude indépendant spécialiste des réseaux et infrastructures, des solutions sur-mesure, de l'Ingénierie sur tous terrains de jeu.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10	EPDC	Exact match	Ivry-sur-seine, FranceHQ recorded Oct 18, 2026	11-50	51 contacts →
	Exact match “Bienvenue chez EPDC, expertise pluridisciplinaire et indépendante en ingénierie et études techniques, où le savoir-faire et l'innovation élaborent des solutions uniques.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11	Atémis	Exact match	La Chapelle Sur Erdre, FranceHQ recorded Oct 18, 2026	11-50	51 contacts →
	Exact match “Depuis plus de 25 ans, ATÉMIS accompagne les entreprises dans la conception, le déploiement et la sécurisation de leurs infrastructures informatiques.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12	Critical Building	Exact match	Fontenay-aux-roses, FranceHQ recorded Oct 18, 2026	11-50	48 contacts →
	Exact match “CRITICAL BUILDING is an engineering company specialized in consulting, studies, audit, design, construction and commissioning of data centers.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13	Naitways	Exact match	Boulogne-billancourt, FranceHQ recorded Oct 18, 2026	51-200	47 contacts →
	Exact match “IT infrastructures expert, Naitways is a French tailored IT solutions company, with value-added services and high levels of contractual services.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14	Redopus	Exact match	Paris, FranceHQ recorded Oct 18, 2026	11-50	45 contacts →
	Exact match “Créé en 2017, REDOPUS est spécialisée en sécurité, réseaux des systèmes d'informations.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15	Setec IS	Exact match	Paris, FranceHQ recorded Oct 18, 2026	11-50	44 contacts →
	Exact match “setec is est une filiale du Groupe setec, spécialisée dans le conseil et l’ingénierie dans le domaine des infrastructures IT, télécom, réseaux et cybersécurité.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16	By The WAY	Exact match	Vendeville, FranceHQ recorded Oct 18, 2026	11-50	41 contacts →
	Exact match “Services aux entreprises dans différents domaines des infrastructures informatique.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17	IDNA	Exact match	Paris, FranceHQ recorded Oct 18, 2026	11-50	40 contacts →
	Exact match “Cabinet de conseil à taille humaine spécialisé dans les infrastructures Datacenters, réseaux et sécurité.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18	Groupe Cetab	Exact match	Bordeaux, FranceHQ recorded Oct 18, 2026	51-200	39 contacts →
	Exact match “Le Groupe CETAB développe son savoir-faire avec une équipe de plus de 70 collaborateurs et ses filiales spécialisées, C-3E pour l’environnement, C-TECH pour le Génie électrique…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19	Topo Etudes	Exact match	Lisieux, FranceHQ recorded Oct 18, 2026	51-200	36 contacts →
	Exact match “TOPO-ETUDES Est un bureau d'études spécialisé dans la conception des réseaux aériens et souterrains de Distribution d'Energie, la société a été créée en 1990 et a développé des…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20	AGC Cabling	Exact match	Thieux, FranceHQ recorded Oct 18, 2026	51-200	35 contacts →
	Exact match “Créé en 2014, AGC Cabling est spécialisé dans les travaux électriques, le balisage aéroportuaire, la fibre optique et les réseaux de télécommunication.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21	Fonvieille Ingenierie	Exact match	Prigonrieux, FranceHQ recorded Oct 18, 2026	11-50	34 contacts →
	Exact match “FONVIEILLE INGENIERIE par l’ensemble de ses 35 techniciens géomètres et ingénieurs, et de ses 35 ans d’expérience s’engage dans une démarche qualitative de service, tout en…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22	Finelec IDF	Exact match	Sevres, FranceHQ recorded Oct 18, 2026	51-200	34 contacts →
	Exact match “L'entreprise FINELEC IDF est experte dans le domaine des installations Courants Forts et Courants Faibles, elle conçoit et réalise des projets pour répondre aux exigences de ses…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23	Reseaux Environnement	Exact match	Breaute, FranceHQ recorded Oct 18, 2026	51-200	33 contacts →
	Exact match “Créée en 2006, RESEAUX ENVIRONNEMENT est spécialisée dans l'étude et la conception de réseaux divers (EP, AEP, BT, HTA, télécommunication, FFTH.).” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24	Neywork	Exact match	Paris La Défense, FranceHQ recorded Oct 18, 2026	11-50	33 contacts →
	Exact match “Nous sommes : Neywork est un cabinet de conseil spécialisé en réseau et sécurité Fondé en 2018 par un architecte spécialisé en réseau et sécurité, Neywork apporte des solutions…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25	Laglasse & Omhovere L Fayat Énergie Services	Exact match	Marly, FranceHQ recorded Oct 18, 2026	11-50	33 contacts →
	Exact match “LAGLASSE & OMHOVERE, créée en 1986, est un bureau d’études spécialisé dans la conception et l’optimisation des réseaux électriques aériens et souterrains à Haute et Très Haute…” Recorded in the RevenueBase company graph · Oct 18, 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 “network design and engineering firms”. 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 25 of 522 network design and engineering firms based in France

See the full list, filter by size, metro and specialty, and access 1,561 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Network design and engineering firms based in France at a glance

As of Oct 18, 2026

23.7%Verified-email coverage

12.6Average contacts per company

1-10Median size (employees)

14.0%Largest-city concentration · Paris

Oct 18, 2026Page data refreshed

Companies by employee count

1-10

320

11-50

158

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 522 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 France whose business descriptions match “network design and engineering firms” 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 1,561 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 October 18, 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.

Network design and engineering firms by metro

Network design and engineering firms in Paris73

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 “network design and engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many network design and engineering firms are there based in France?

RevenueBase identified 522 company matches for network design and engineering firms associated with France as of October 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?

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

Which city has the most network design and engineering firms?

Paris leads with 73 company records, followed by Lyon (14) and Boulogne-Billancourt (7).

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 1,561 professional contacts with verified work emails tracked across these 522 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 October 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 522 network design and engineering firms based in France. Start with a free account, no credit card.

Download this list →

Related lists

Network design and engineering firms 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 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.