# Top 27 Telecommunications companies in Grand Est
Tamtam tracks 27 Telecommunications companies headquartered in Grand Est. This list ranks all of them by number of employees on LinkedIn, led by Vantiva, ERT Technologies SAS and CORDON GROUP. Their median headcount is 89. Half of them were founded in 2004 or later. The most common headquarters are Metz (3) and Strasbourg (2).
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.
馃嚝馃嚪 Grand Est 路 27 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Vantiva](https://www.tamtam.ai/c/vantiva) (vantiva.com)
Global technology leader providing broadband, video, and IoT smart systems, connecting people worldwide. Specializes in hardware design and supply chain expertise. | Telecommunications | 馃嚝馃嚪 Paris | 1,380 | |
| 2 | [ERT Technologies SAS](https://www.tamtam.ai/c/ert-technologies-sas) (ert-technologies.fr)
Designs, builds, operates, and maintains multi-technical telecommunications infrastructure and network architectures across France for operators, local authorities, and major accounts. | Telecommunications | 馃嚝馃嚪 Thaon-les-Vosges | 1,186 | 2000 |
| 3 | [CORDON GROUP](https://www.tamtam.ai/c/cordon-group) (cordongroup.com)
Provides electronic product maintenance, repair, logistics, manufacturing, and engineering across 40 sites in 12 countries for various partners. | Telecommunications | 馃嚝馃嚪 Dinan | 907 | 1989 |
| 4 | [Ekinops](https://www.tamtam.ai/c/ekinops) (ekinops.com)
Provides open, trusted, and innovative network connectivity solutions. Delivers high value-added software-driven solutions for optical transport and virtualized managed enterprise services. | Telecommunications | 馃嚝馃嚪 Lannion | 509 | 2003 |
| 5 | [Stelogy](https://www.tamtam.ai/c/stelogy) (stelogy.com)
Operator and Integrator of VoIP and ToIP services, offering telephony solutions specifically designed for small and medium-sized enterprises. | Telecommunications | 馃嚝馃嚪 Paris | 501 | 1999 |
| 6 | [3media](https://www.tamtam.ai/c/3media-pont-sainte-marie) (decouvrez.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 | Telecommunications | 馃嚝馃嚪 Pont-Sainte-Marie | 477 | |
| 7 | [EURO TELE SERVICES](https://www.tamtam.ai/c/euro-tele-services) (euroteleservices.fr)
Providing professional, high-quality customer relationship services across banking, payment solutions, and various sectors using multichannel communication and multilingual support. | Telecommunications | 馃嚝馃嚪 Strasbourg | 453 | 2004 |
| 8 | [Cottel Reseaux](https://www.tamtam.ai/c/cottel-reseaux) (ensio.eu)
Driving transformation for people and communities through innovative services and solutions | Telecommunications | 馃嚝馃嚪 Metz | 362 | 2006 |
| 9 | [COMETZ](https://www.tamtam.ai/c/cometz) (cometz.fr)
Offering outsourced solutions to large organizations looking for new sources of revenue and savings, focusing on customer relationship management and diversity | Telecommunications | 馃嚝馃嚪 Metz | 353 | 2000 |
| 10 | [Son茅o](https://www.tamtam.ai/c/soneo) (soneo.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! | Telecommunications | 馃嚝馃嚪 Max茅ville | 204 | 1999 |
| 11 | [SCT TELECOM](https://www.tamtam.ai/c/sct-telecom) (sct-telecom.fr)
Provider of integrated telecom services including fixed and mobile telephony, IT solutions, and virtual telecom infrastructure through strategic partnerships. | Telecommunications | 馃嚝馃嚪 | 148 | 1997 |
| 12 | [CAP2CALL](https://www.tamtam.ai/c/cap2call) (rejoignez.cap2call.fr)
Contact center based in Chaumont with 210 employees offering customer service, training, and management roles since 2009. | Telecommunications | 馃嚝馃嚪 Chaumont | 103 | 2009 |
| 13 | [Wyplay](https://www.tamtam.ai/c/wyplay) (wyplay.com)
Designing video software solutions for operators and broadcasters to manage Android TV, RDK, Linux STBs, mobile devices, legacy upgrades, and OTT platforms. | Telecommunications | 馃嚝馃嚪 Allauch | 96 | 2006 |
| 14 | [Quonex Alsatel](https://www.tamtam.ai/c/quonex-alsatel) (quonex.fr)
Quonex Alsatel designs and integrates tailored software and hardware solutions for operators, voice/data, security, and specific applications, providing comprehensive services for businesses | Telecommunications | 馃嚝馃嚪 Holtzheim | 89 | 1947 |
| 15 | [DELTA MARKETING](https://www.tamtam.ai/c/delta-marketing) (deltamarketingfrance.com)
Delta Marketing is a trusted partner specializing in digitalizing telecommunications and enhancing cybersecurity for businesses, offering solutions for connectivity, 5G, and personalized support | Telecommunications | 馃嚝馃嚪 Nancy | 66 | 2017 |
| 16 | [ODY-C](https://www.tamtam.ai/c/ody-c) (ody-c.fr)
Specialist in telecommunications, IT, and cybersecurity providing innovative, personalized digital transformation and connectivity solutions to businesses across France. | Telecommunications | 馃嚝馃嚪 | 63 | 2011 |
| 17 | [3media](https://www.tamtam.ai/c/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 | Telecommunications | 馃嚝馃嚪 Pont-Sainte-Marie | 58 | 2009 |
| 18 | [AZ Telecom](https://www.tamtam.ai/c/az-telecom) (aztelecom.fr)
Offers personalized telecom solutions for businesses, providing expertise, security, unlimited offers, local support, high performance, and simple, comprehensive services. | Telecommunications | 馃嚝馃嚪 Nice | 36 | |
| 19 | [Terre d'Appels](https://www.tamtam.ai/c/terre-d-appels) (terredappels.fr)
Expertise in customer relations focusing on managing inbound calls and outbound call campaigns to meet ongoing or occasional client needs. | Telecommunications | 馃嚝馃嚪 Strasbourg | 32 | 2009 |
| 20 | [OPS](https://www.tamtam.ai/c/ops) (ops-services.fr)
OPS is a specialized company in IT, telephony, and internet networks for professionals, providing flexible solutions in security, telecommunications, hosting, and maintenance | Telecommunications | 馃嚝馃嚪 Saint-Martin-sur-le-Pr茅 | 31 | 2004 |
| 21 | [ENTELA](https://www.tamtam.ai/c/entela) (entela.fr)
Specializes in integrating new communication and information technologies, serving large industries, local authorities, and SMEs in Eastern France. | Telecommunications | 馃嚝馃嚪 Entzheim | 28 | 1993 |
| 22 | [EVERLINK SERVICES](https://www.tamtam.ai/c/everlink-services) (everlink-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. | Telecommunications | 馃嚝馃嚪 | 26 | |
| 23 | [Alcatel-Lucent](https://www.tamtam.ai/c/alcatel-lucent) (nokia.com)
Account closed, now part of Nokia. Updates are on Nokia's main page or Nokia Networks for business information. | Telecommunications | 馃嚝馃嚪 Boulogne-Billancourt | 22 | 2006 |
| 24 | [TeleCoop France](https://www.tamtam.ai/c/telecoop-france) (telecoop.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. | Telecommunications | 馃嚝馃嚪 Paris | 21 | 2020 |
| 25 | [ERCOGENER](https://www.tamtam.ai/c/ercogener) (ercogener.com)
Designing and manufacturing innovative MtoM and IoT communication solutions. Constantly improving products and services with new technologies, guaranteeing robustness, innovation, and durability globally. | Telecommunications | 馃嚝馃嚪 Bellevigne-Les-Ch脿teaux | 18 | 1981 |
| 26 | [SFR Business Est](https://www.tamtam.ai/c/sfr-business-est) (sfrbusiness.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 | Telecommunications | 馃嚝馃嚪 Metz | 16 | 1999 |
| 27 | [Netalis](https://www.tamtam.ai/c/netalis) (netalis.fr)
Provides telecommunication services like fiber and radio links, offers hosted services including messaging, virtual hosting, VoIP, mobile telephony, and remote backup. | Telecommunications | 馃嚝馃嚪 Besan莽on | 11 | 2015 |
## 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.
## More company lists in Grand Est
- [The largest companies in Grand Est](https://www.tamtam.ai/l/largest-companies-grand-est) (5,706)
- [Multinational companies in Grand Est](https://www.tamtam.ai/l/multinational-companies-grand-est) (788)
- [Companies with in-house R&D in Grand Est](https://www.tamtam.ai/l/r-and-d-companies-grand-est) (640)
- [Manufacturers in Grand Est](https://www.tamtam.ai/l/manufacturers-grand-est) (573)
- [Retail chains in Grand Est](https://www.tamtam.ai/l/retail-chains-grand-est) (530)
- [Public sector organisations in Grand Est](https://www.tamtam.ai/l/public-sector-organisations-grand-est) (427)
- [Family-owned companies in Grand Est](https://www.tamtam.ai/l/family-owned-companies-grand-est) (365)
- [Hardware manufacturers in Grand Est](https://www.tamtam.ai/l/hardware-companies-grand-est) (342)
- [Professional services firms in Grand Est](https://www.tamtam.ai/l/professional-services-firms-grand-est) (316)
- [Distributors and wholesalers in Grand Est](https://www.tamtam.ai/l/distributors-and-wholesalers-grand-est) (307)
- [Critical infrastructure operators in Grand Est](https://www.tamtam.ai/l/critical-infrastructure-operators-grand-est) (259)
- [IT services companies in Grand Est](https://www.tamtam.ai/l/it-services-companies-grand-est) (248)
- [SaaS companies in Grand Est](https://www.tamtam.ai/l/saas-companies-grand-est) (216)
- [Education providers in Grand Est](https://www.tamtam.ai/l/education-companies-grand-est) (215)
- [IT Services and IT Consulting companies in Grand Est](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-grand-est) (213)
- [Software Development companies in Grand Est](https://www.tamtam.ai/l/software-development-companies-grand-est) (211)
- [Healthcare providers in Grand Est](https://www.tamtam.ai/l/healthcare-providers-grand-est) (202)
- [Construction companies in Grand Est](https://www.tamtam.ai/l/construction-companies-grand-est) (196)
- [Contract manufacturers in Grand Est](https://www.tamtam.ai/l/contract-manufacturers-grand-est) (192)
- [Retail companies in Grand Est](https://www.tamtam.ai/l/retail-companies-grand-est) (169)
- [Government Administration companies in Grand Est](https://www.tamtam.ai/l/government-administration-companies-grand-est) (168)
- [Industrial Machinery Manufacturing companies in Grand Est](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-grand-est) (166)
- [Consulting firms in Grand Est](https://www.tamtam.ai/l/consulting-firms-grand-est) (165)
- [Food and beverage companies in Grand Est](https://www.tamtam.ai/l/food-and-beverage-companies-grand-est) (161)
## The same list elsewhere in France
- [Telecommunications companies in France](https://www.tamtam.ai/l/telecommunications-companies-france) (461)
- [Telecommunications companies in 脦le-de-France](https://www.tamtam.ai/l/telecommunications-companies-ile-de-france) (210)
- [Telecommunications companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/telecommunications-companies-hauts-de-seine) (61)
- [Telecommunications companies in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/telecommunications-companies-auvergne-rhone-alpes) (49)
- [Telecommunications companies in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/telecommunications-companies-provence-alpes-cote-dazur) (38)
- [Telecommunications companies in Occitanie](https://www.tamtam.ai/l/telecommunications-companies-occitanie) (31)
- [Telecommunications companies in the Rh么ne department](https://www.tamtam.ai/l/telecommunications-companies-rhone) (26)
- [Telecommunications companies in Paris](https://www.tamtam.ai/l/telecommunications-companies-paris) (77)
## The same list elsewhere
- [Telecommunications companies in the world](https://www.tamtam.ai/l/telecommunications-companies-in-the-world) (3,307)
- [Telecommunications companies in Europe](https://www.tamtam.ai/l/telecommunications-companies-in-europe) (1,294)
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Source: https://www.tamtam.ai/l/telecommunications-companies-grand-est