The telecommunications sector in Grand Est features a mix of established and younger companies, many founded around the turn of the millennium. These firms provide a range of services from infrastructure development and maintenance to customer relationship management and specialized software solutions. Companies like Vantiva and Ekinops focus on broadband, video, IoT, and network connectivity, while ERT Technologies SAS builds and maintains telecommunications infrastructure.
Several companies specialize in customer service and telemarketing, such as 3media, EURO TELE SERVICES, and COMETZ, which handle client relations and outsourced solutions. A notable pattern is the prevalence of companies offering outsourced customer relationship management, indicating a strong service-oriented segment within the region's telecommunications industry.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Vantivavantiva.com
Global technology leader providing broadband, video, and IoT smart systems, connecting people worldwide. Specializes in hardware design and supply chain expertise. |
1,380 | |||
| 2 |
ERT Technologies SASert-technologies.fr
Designs, builds, operates, and maintains multi-technical telecommunications infrastructure and network architectures across France for operators, local authorities, and major accounts. |
1,186 | |||
| 3 |
CORDON GROUPcordongroup.com
Provides electronic product maintenance, repair, logistics, manufacturing, and engineering across 40 sites in 12 countries for various partners. |
907 | |||
| 4 |
Ekinopsekinops.com
Provides open, trusted, and innovative network connectivity solutions. Delivers high value-added software-driven solutions for optical transport and virtualized managed enterprise services. |
509 | |||
| 5 |
Stelogystelogy.com
Operator and Integrator of VoIP and ToIP services, offering telephony solutions specifically designed for small and medium-sized enterprises. |
501 | |||
| 6 |
3mediadecouvrez.3media.fr
A local leader in client relations, serving prestigious clients with 750 employees Handling inbound calls through various channels to provide satisfaction and loyalty |
477 | |||
| 7 |
EURO TELE SERVICESeuroteleservices.fr
Providing professional, high-quality customer relationship services across banking, payment solutions, and various sectors using multichannel communication and multilingual support. |
453 | |||
| 8 |
Cottel Reseauxensio.eu
Driving transformation for people and communities through innovative services and solutions |
362 | |||
| 9 | 353 | ||||
| 10 |
Son茅osoneo.spotskills.fr
Since 1999, a leading customer relations company serving prestigious national brands in the public sector, energy, banking, and retail industries with over 250 employees Join us today! |
204 | |||
| 11 |
SCT TELECOMsct-telecom.fr
Provider of integrated telecom services including fixed and mobile telephony, IT solutions, and virtual telecom infrastructure through strategic partnerships. |
148 | |||
| 12 |
CAP2CALLrejoignez.cap2call.fr
Contact center based in Chaumont with 210 employees offering customer service, training, and management roles since 2009. |
103 | |||
| 13 |
Wyplaywyplay.com
Designing video software solutions for operators and broadcasters to manage Android TV, RDK, Linux STBs, mobile devices, legacy upgrades, and OTT platforms. |
96 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 14 |
Quonex Alsatelquonex.fr
Quonex Alsatel designs and integrates tailored software and hardware solutions for operators, voice/data, security, and specific applications, providing comprehensive services for businesses |
89 | |||
| 15 |
DELTA MARKETINGdeltamarketingfrance.com
Delta Marketing is a trusted partner specializing in digitalizing telecommunications and enhancing cybersecurity for businesses, offering solutions for connectivity, 5G, and personalized support |
66 | |||
| 16 | 63 | ||||
| 17 |
3media
3media is a major player in customer relations, specializing in energy and banking for over 11 years with 650+ employees, providing personalized solutions through various channels |
58 | |||
| 18 |
AZ Telecomaztelecom.fr
Offers personalized telecom solutions for businesses, providing expertise, security, unlimited offers, local support, high performance, and simple, comprehensive services. |
36 | |||
| 19 |
Terre d'Appelsterredappels.fr
Expertise in customer relations focusing on managing inbound calls and outbound call campaigns to meet ongoing or occasional client needs. |
32 | |||
| 20 |
OPSops-services.fr
OPS is a specialized company in IT, telephony, and internet networks for professionals, providing flexible solutions in security, telecommunications, hosting, and maintenance |
31 | |||
| 21 | 28 | ||||
| 22 |
EVERLINK SERVICESeverlink-services.fr
Company specializes in installation and maintenance of IT and telecom networks, offering IP solutions like cloud networks, VoIP, video conferencing, and remote backup for businesses. |
26 | |||
| 23 |
Alcatel-Lucentnokia.com
Account closed, now part of Nokia. Updates are on Nokia's main page or Nokia Networks for business information. |
22 | |||
| 24 |
TeleCoop Francetelecoop.fr
This company offers ethical mobile telecom services focused on digital sobriety, human-centric connectivity, and ecological transition for individuals and organizations, with consumption-based billing. |
21 | |||
| 25 |
ERCOGENERercogener.com
Designing and manufacturing innovative MtoM and IoT communication solutions. Constantly improving products and services with new technologies, guaranteeing robustness, innovation, and durability globally. |
18 | |||
| 26 |
SFR Business Estsfrbusiness.fr
SFR Business Distribution is a national distributor of business solutions, offering a range of services from mobile to IoT, supporting growth and digital transformation |
16 | |||
| 27 |
Netalisnetalis.fr
Provides telecommunication services like fiber and radio links, offers hosted services including messaging, virtual hosting, VoIP, mobile telephony, and remote backup. |
11 | |||
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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.
More company lists in Grand Est
- The largest companies in Grand Est 5,706
- Multinational companies in Grand Est 788
- Companies with in-house R&D in Grand Est 640
- Manufacturers in Grand Est 573
- Retail chains in Grand Est 530
- Public sector organisations in Grand Est 427
- Family-owned companies in Grand Est 365
- Hardware manufacturers in Grand Est 342
- Professional services firms in Grand Est 316
- Distributors and wholesalers in Grand Est 307
- Critical infrastructure operators in Grand Est 259
- IT services companies in Grand Est 248
- SaaS companies in Grand Est 216
- Education providers in Grand Est 215
- IT Services and IT Consulting companies in Grand Est 213
- Software Development companies in Grand Est 211
- Healthcare providers in Grand Est 202
- Construction companies in Grand Est 196
- Contract manufacturers in Grand Est 192
- Retail companies in Grand Est 169
- Government Administration companies in Grand Est 168
- Industrial Machinery Manufacturing companies in Grand Est 166
- Consulting firms in Grand Est 165
- Food and beverage companies in Grand Est 161
The same list elsewhere in France
- Telecommunications companies in France 461
- Telecommunications companies in 脦le-de-France 210
- Telecommunications companies in the Hauts-de-Seine department 61
- Telecommunications companies in Auvergne-Rh么ne-Alpes 49
- Telecommunications companies in Provence-Alpes-C么te d'Azur 38
- Telecommunications companies in Occitanie 31
- Telecommunications companies in the Rh么ne department 26
- Telecommunications companies in Paris 77