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30 leading Telecommunications companies in the Hauts-de-Seine department

Tamtam tracks 61 Telecommunications companies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Orange, SAGEMCOM and Alcatel-Lucent Enterprise. Their median headcount is 322. Half of them were founded in 2008 or later. The most common headquarters are Boulogne-Billancourt (5), Courbevoie (5) and Issy-les-Moulineaux (4).

πŸ‡«πŸ‡· Hauts-de-Seine30 companiesUpdated Nov 12, 2026

These telecommunications companies in Hauts-de-Seine largely represent established firms and mid-sized enterprises. Orange is a global operator offering services across 26 countries, while SAGEMCOM provides innovative broadband internet and entertainment solutions. Alcatel-Lucent Enterprise focuses on secure networking and communication solutions, and La Poste Mobile offers affordable mobile telecom services.

The data shows a concentration of companies in specific towns within Hauts-de-Seine. Issy-les-Moulineaux hosts Orange, Sogetrel, and Eutelsat. Bois-Colombes is home to SAGEMCOM and Paritel, while Courbevoie includes SFR DISTRIBUTION and TRANSATEL. This suggests a clustering of telecommunications activity in these areas.

#CompanyIndustryHeadquarters EmployeesFounded
1
Orangeorange.com

A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries

Telecommunications πŸ‡«πŸ‡· Issy-les-Moulineaux 146,935 n/a
2
SAGEMCOMsagemcom.com

Provides innovative broadband internet, entertainment, and managed energy solutions. Designs sustainable technology, leader in its markets, with employee ownership.

Telecommunications πŸ‡«πŸ‡· Bois-Colombes 5,279 2008
3
Alcatel-Lucent Enterpriseal-enterprise.com

Provides secure networking and communication solutions with built-in security, environmental focus, and compliance for organizations worldwide.

Telecommunications πŸ‡«πŸ‡· Colombes 4,055 2014
4
La Poste Mobilelapostemobile.fr

Provides affordable mobile telecom services with low-cost plans, accessible devices, extensive customer support, and promotes responsible digital usage for all ages.

Telecommunications πŸ‡«πŸ‡· Chaville 3,619 2011
5
Sogetrelsogetrel.fr

A leader in digital transformation, specializing in digital infrastructure services and connected devices to enhance citizens' lives, business performance, and sustainable development

Telecommunications πŸ‡«πŸ‡· Issy-les-Moulineaux 2,581 1985
6
Axioneaxione.com

A leading player in public network initiatives, specializing in telecommunications infrastructure deployment, operation, financing, and asset management for rural and urban areas

Telecommunications πŸ‡«πŸ‡· Malakoff 2,488 n/a
7
Eutelsateutelsat.com

Delivers connectivity and broadcast services worldwide. Operates a global fleet of 37 Geostationary satellites and over 600 Low Orbit earth satellites for diverse markets.

Telecommunications πŸ‡«πŸ‡· Issy-les-Moulineaux 1,755 n/a
8
TDFtdf.fr

In the heart of the digital revolution, this company develops innovative solutions for managing and distributing audio, video, and data content through various transmission methods

Telecommunications πŸ‡«πŸ‡· Montrouge 1,741 1975
9
SADE TΓ©lΓ©comensio.eu

Specialized teams deploy digital and energy networks, offering turnkey solutions, services, and maintenance with sustainable and safe practices.

Telecommunications πŸ‡«πŸ‡· Clamart 1,063 2008
10
SFR DISTRIBUTION

National retail subsidiary managing three hundred points of sale and two thousand employees providing telecommunication services, products, and customer support across France.

Telecommunications πŸ‡«πŸ‡· Courbevoie 574 2017
11
Paritelparitel.fr

Paritel, a telecom operator for small businesses, prioritizes performance and individual talent while fostering teamwork and career development for its 700 employees

Telecommunications πŸ‡«πŸ‡· Bois-Colombes 501 1991
12
Linktlinkt.fr

Provides managed services, telecom, and cybersecurity expertise for mid-sized and large companies, and local authorities, to optimize and secure their digital infrastructure.

Telecommunications πŸ‡«πŸ‡· Puteaux 463 2016
13
Itanciaitancia.com

Provides eco-responsible business communication, collaboration, network, and security solutions. Supports partners in adopting responsible practices, balancing technology, economy, and ecology through distribution, services, and product lifecycle management.

Telecommunications πŸ‡«πŸ‡· Nanterre 395 1991
14
Keyyokeyyo.com

Innovative communication solutions with VoIP for businesses, managed through the Cloud Trusted by over 10,000 clients in various industries

Telecommunications πŸ‡«πŸ‡· Clichy 337 1994
15
TRANSATEL (an NTT company)transatel.com

Innovative cellular connectivity solutions provider enabling global IoT connectivity for industries and travelers, part of NTT group with 330,000 employees worldwide

Telecommunications πŸ‡«πŸ‡· Courbevoie 322 2000

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16
TOTEMtotemtowers.com

TOTEM is a TowerCo company offering infrastructure and connectivity solutions in France and Spain, focusing on towers and Distributed Antenna Solutions

Telecommunications πŸ‡«πŸ‡· Puteaux 278 2021
17
XpFibrexpfibre.com

Design, construction, and operation of optical fiber networks across France, maintaining over seven million connections for local communities through private and public partnerships.

Telecommunications πŸ‡«πŸ‡· Courbevoie 263 n/a
18
TISSEO SERVICESrecrutement.tisseo-services.fr

Specializes in FTTH fiber optic connection and repair services for Bouygues Telecom customers, emphasizing employee value and company growth.

Telecommunications πŸ‡«πŸ‡· Gennevilliers 246 2018
19
Thomson Telecommythomson.com

Development, design, and delivery of telecommunication products and services for residential and business markets worldwide, focusing on quality and innovation.

Telecommunications πŸ‡«πŸ‡· Boulogne-Billancourt 243 n/a
20
Cellnex Francecellnex.com

Operating and maintaining mobile towers, fiber optic networks, and data centers for telecommunications operators and organizations requiring large-scale digital connectivity and hosting services.

Telecommunications πŸ‡«πŸ‡· Boulogne-Billancourt 240 2016
21
Prosodie-Capgemini

This company focuses on customer relations and offers a variety of content such as customer experience, articles, and job opportunities

Telecommunications πŸ‡«πŸ‡· Boulogne-Billancourt 233 1986
22
eServGlobalseamless.se

SDS provides software platforms for digital sales and distribution to mobile users in over 50 markets, processing billions of transactions annually

Telecommunications πŸ‡«πŸ‡· Malakoff 230 1983
23
Viaccess-Orcaviaccess-orca.com

Provides premium TV platforms, OTT, and content protection globally, delivering, protecting, and monetizing advanced TV services for operators, broadcasters, and content providers.

Telecommunications πŸ‡«πŸ‡· Courbevoie 226 2012
24
Eurofiber France

Provides extensive fiber optic network and innovative, secure cloud hosting solutions to support business digital transformation and connectivity needs.

Telecommunications πŸ‡«πŸ‡· Issy-les-Moulineaux 161 n/a
25
Alleo de Bouygues Telecomalleo.fr

Provides IT and telecom solutions including cybersecurity, VoIP integration, managed services, and local customer support with certified professionals.

Telecommunications πŸ‡«πŸ‡· Clichy 144 n/a
26
Vitrinemediavitrinemedia.com

Design and retail of innovative, ultra-thin LED display panels with various formats and colors for window merchandising worldwide.

Telecommunications πŸ‡«πŸ‡· Boulogne-Billancourt 140 2007
27
Dstny FRdstny.fr

Provides cloud-based unified communication tools integrating voice, video, chat, mobile, and cybersecurity for businesses across various sectors.

Telecommunications πŸ‡«πŸ‡· Clichy 136 n/a
28
THOMSON BROADCASTthomsonbroadcast.tv

A trusted pioneer in broadcasting technology, specializing in transmission products for terrestrial TV and radio with world-class systems integration services and a global support presence

Telecommunications πŸ‡«πŸ‡· Colombes 100 1918
29
innov8 Groupinnov8.fr

Organizes the adoption of disruptive technology by distributing consumer connected products, renewable energy solutions, and advanced robotics across Europe.

Telecommunications πŸ‡«πŸ‡· Courbevoie 93 2012
30
Bouygues Telecom Business – Distributionbtbd.fr

Provides telecom services to over 2 million clients through various distribution channels, emphasizing human values and entrepreneurial spirit in a dynamic sector.

Telecommunications πŸ‡«πŸ‡· Boulogne-Billancourt 90 n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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