# The 100 largest Telecommunications companies in Europe

Tamtam tracks 1,294 Telecommunications companies headquartered in Europe. This list ranks the 100 largest by number of employees on LinkedIn, led by Orange, Vodafone and Telefónica. Their median headcount is 4,014. Half of them were founded in 1999 or later. The most common headquarters are London (14), Milan (5) and Paris (5).

These European telecommunications companies are predominantly large, established groups. They offer a broad spectrum of services, including fixed and mobile telephony, digital services, and network infrastructure, catering to millions of customers and businesses globally. Key players include Orange, providing services across 26 countries; Vodafone, connecting people globally and driving social change; Telefónica, offering advanced infrastructure and digital services; and Ericsson, focused on creating connections and pioneering a sustainable future. Nokia, founded in 1865, is a B2B technology innovation leader in digital networks.

A clear pattern among these companies is their global or regional reach. Many, such as Vodafone, Telefónica, and Orange, operate across multiple continents, while others like Telia and KPN concentrate on specific regions such as the Nordics, Baltics, or Benelux, indicating a strategic focus on expanding connectivity and digital solutions across diverse markets.

🌍 Europe · 100 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Orange](https://www.tamtam.ai/c/orange-issy-les-moulineaux) (orange.com)<br>A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries | Telecommunications | 🇫🇷 Issy-les-Moulineaux | 146,935 |  |
| 2 | [Vodafone](https://www.tamtam.ai/c/vodafone) (vodafone.com)<br>Using technology to connect people globally, drive social change, and improve lives while emphasizing the importance of humanity and collaboration | Telecommunications | 🇬🇧 London | 142,740 | 1982 |
| 3 | [Telefónica](https://www.tamtam.ai/c/telefonica) (telefonica.com)<br>Leading global telecommunications company providing advanced infrastructure, innovative digital and data services, focusing on secure, cutting-edge technology and social impact. | Telecommunications | 🇪🇸 Madrid | 121,569 |  |
| 4 | [Ericsson](https://www.tamtam.ai/c/ericsson) (ericsson.com)<br>This company aims to create connections that enable limitless possibilities, improve lives, redefine business, and pioneer a sustainable future | Telecommunications | 🇸🇪 Kista | 107,368 | 1876 |
| 5 | [Nokia](https://www.tamtam.ai/c/nokia) (nokia.com)<br>A B2B technology innovation leader creating digital networks that enable collaboration and drive the future of industry applications and services | Telecommunications | 🇫🇮 Espoo | 101,094 | 1865 |
| 6 | [BT Group](https://www.tamtam.ai/c/bt-group) (bt.com)<br>A global communications services company connecting people through technology to address challenges like the pandemic, climate change, and cyber security | Telecommunications | 🇬🇧 London | 73,712 |  |
| 7 | [Deutsche Telekom](https://www.tamtam.ai/c/deutsche-telekom) (telekom.com)<br>A leading global communications and information technology company with a diverse team of 206,000 colleagues creating innovative solutions for digital transformation | Telecommunications | 🇩🇪 Bonn | 67,270 |  |
| 8 | [Vivo (Telefônica Brasil)](https://www.tamtam.ai/c/vivo-telefonica-brasil) (vivo.com.br)<br>Largest Brazilian telecommunications provider. Offers comprehensive fixed, mobile, and digital services including fiber optic, 4G, 4.5G, and IPTV. Focuses on digital inclusion and education. | Telecommunications | 🇵🇹 São Paulo | 39,219 | 1998 |
| 9 | [Millicom (Tigo)](https://www.tamtam.ai/c/millicom-tigo) (millicom.com)<br>Provides fixed and mobile telecommunication services, offering digital products like financial services, entertainment, TV, data, voice, and business solutions across Latin America. | Telecommunications | 🇱🇺 Luxembourg | 29,944 | 1992 |
| 10 | [Telenor](https://www.tamtam.ai/c/telenor) (telenor.com)<br>A telecommunications company connecting millions of subscribers in the Nordics and Asia, focused on empowering societies and delivering connectivity with integrity | Telecommunications | 🇳🇴 Fornebu | 22,811 |  |
| 11 | [TIM](https://www.tamtam.ai/c/tim) (gruppotim.it)<br>Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil. | Telecommunications | 🇮🇹 Milan | 22,417 |  |
| 12 | [KPN](https://www.tamtam.ai/c/kpn) (kpn.com)<br>Innovative technology provider focusing on The New Way of Life & Work, Security & Privacy, ICT infrastructure, transparent services, healthcare efficiency, and sustainability | Telecommunications | 🇳🇱 Rotterdam | 17,917 |  |
| 13 | [Telia](https://www.tamtam.ai/c/telia) (teliacompany.com)<br>Reinventing connected living in the Nordics and Baltics, empowering people, companies, and societies with strong connectivity and digital services | Telecommunications | 🇸🇪 Solna | 17,553 |  |
| 14 | [Openreach](https://www.tamtam.ai/c/openreach) (openreach.com)<br>This company is the UK's digital network business, connecting homes, businesses, and more to the world with a focus on high-quality service | Telecommunications | 🇬🇧 London | 16,885 |  |
| 15 | [Proximus Group](https://www.tamtam.ai/c/proximus-group) (proximus.com)<br>Provider of connectivity and digital services in Benelux and global markets, investing in networks, digital ecosystems, and innovative communication solutions. | Telecommunications | 🇧🇪 Brussels | 13,297 |  |
| 16 | [Free](https://www.tamtam.ai/c/free) (etre-free.fr)<br>Leading European telecommunications group offering fixed and mobile high-speed internet, serving millions of subscribers across France, Italy, and Poland. | Telecommunications | 🇫🇷 Paris | 13,192 | 1999 |
| 17 | [A1 Telekom Austria Group](https://www.tamtam.ai/c/a1-telekom-austria-group) (a1.group)<br>Leading digital services and communications provider in Central and Eastern Europe, enabling connectivity, digital business, and lifestyle for over 24 million users. | Telecommunications | 🇦🇹 Vienna | 12,320 | 1887 |
| 18 | [EE](https://www.tamtam.ai/c/ee) (ee.co.uk)<br>A leading mobile communications company in the UK, offering mobile and fixed services with the largest and fastest network coverage | Telecommunications | 🇬🇧 London | 12,146 | 2012 |
| 19 | [Bouygues Telecom](https://www.tamtam.ai/c/bouygues-telecom) (bouyguestelecom.fr)<br>Connecting people through technology, enhancing human relationships, and providing various telecom, IT, and digital services to foster connections. | Telecommunications | 🇫🇷 Meudon-la-Forêt | 12,092 | 1996 |
| 20 | [SFR](https://www.tamtam.ai/c/sfr) (recrutement.sfr.com)<br>French telecoms operator providing comprehensive range of mobile and broadband services to private and business customers, leading market shares. | Telecommunications | 🇫🇷 Paris | 11,294 | 1987 |
| 21 | [Rohde & Schwarz](https://www.tamtam.ai/c/rohde-and-schwarz) (rohde-schwarz.com)<br>Technology group creates innovations, empowers industrial, regulatory, and military customers with test, measurement, and cybersecurity solutions, pushing boundaries in AI, 6G, cloud. | Telecommunications | 🇩🇪 Munich | 9,600 | 1933 |
| 22 | [DIGI SPAIN TELECOM](https://www.tamtam.ai/c/digi-spain-telecom) (digimobil.es)<br>A mobile virtual operator in Spain, offering affordable rates for calls, internet, and roaming Backed by a strong network and customer support in multiple languages | Telecommunications | 🇪🇸 Alcobendas | 9,000 | 2006 |
| 23 | [NINGUNO](https://www.tamtam.ai/c/ninguno) (siadde.es)<br>A technology company with over 20 years of experience providing comprehensive solutions in security systems, telecommunications, software development, and more for various industries | Telecommunications | 🇪🇸 Madrid | 8,620 | 2026 |
| 24 | [Virgin Media O2](https://www.tamtam.ai/c/virgin-media-o2) (virginmediao2.co.uk)<br>Provides fastest broadband and largest mobile network in the UK, focusing on customer-first connectivity services and network upgrades. | Telecommunications | 🇬🇧 London | 8,272 | 2021 |
| 25 | [Vodafone Business](https://www.tamtam.ai/c/vodafone-business) (vodafone.com)<br>Providing mobile, fixed, unified communications, IoT, cloud, and security services to businesses globally, regionally, and locally. | Telecommunications | 🇬🇧 London | 8,100 |  |
| 26 | [Virgin Media](https://www.tamtam.ai/c/virgin-media) (jobs.virginmediao2.co.uk)<br>Providing ultrafast broadband and fibre optic network services to connect millions of homes and businesses with reliable internet access. | Telecommunications | 🇬🇧 Reading | 7,691 |  |
| 27 | [OTE Group of Companies (HTO)](https://www.tamtam.ai/c/ote-group-of-companies-hto) (cosmote.gr)<br>A leading technology company in Greece, part of Deutsche Telekom Group, providing a wide range of telecom services and ICT solutions for digital transformation and growth | Telecommunications | 🇬🇷 Athens | 7,648 |  |
| 28 | [wind tre](https://www.tamtam.ai/c/wind-tre) (windtregroup.it)<br>Provides connections, energy, and insurance services for families and businesses, supporting digital and sustainable transformation with telecommunications, broadband, cybersecurity, and cloud solutions. | Telecommunications | 🇮🇹 Milan | 7,136 |  |
| 29 | [SES Satellites](https://www.tamtam.ai/c/ses-satellites) (ses.com)<br>Delivering global content connectivity solutions through a vast network of satellites to enrich personal stories and connect more people worldwide | Telecommunications | 🇱🇺 Betzdorf | 6,903 |  |
| 30 | [Hi](https://www.tamtam.ai/c/hi) (kpn.com)<br>A leading mobile youth brand in the Netherlands, offering prepaid, contracts, mobile internet, and services to over 2 million customers for seamless communication with friends | Telecommunications | 🇳🇱 The Hague | 6,563 | 1996 |
| 31 | [Three UK](https://www.tamtam.ai/c/three-uk) (threev1-1481200-gb-engb.sr-attrax.com)<br>Provides mobile network services, including 3G, 4G, and 5G, covering 99% of the UK outdoor population and sponsoring Chelsea FC. | Telecommunications | 🇬🇧 Reading | 6,239 | 2003 |
| 32 | [Altice Portugal](https://www.tamtam.ai/c/altice-portugal) (altice.pt)<br>A global telecommunications and multimedia operator in Portugal, offering fixed line, mobile, multimedia, data, and business solutions to meet digital consumer needs | Telecommunications | 🇵🇹 Lisbon | 5,800 |  |
| 33 | [VodafoneZiggo](https://www.tamtam.ai/c/vodafoneziggo) (vodafoneziggo.com)<br>VodafoneZiggo is a communication-provider offering entertainment, mobile, fixed phone, and internet services, inspiring individuals and businesses to connect and innovate | Telecommunications | 🇳🇱 Utrecht | 5,632 | 2017 |
| 34 | [MEO](https://www.tamtam.ai/c/meo) (meo.pt)<br>Partnering with businesses to innovate, overcome challenges, and enhance competitiveness, supporting economic growth across all sectors and locations. | Telecommunications | 🇵🇹 Lisbon | 5,389 |  |
| 35 | [O2 (Telefónica UK)](https://www.tamtam.ai/c/o2-telefonica-uk) (o2.co.uk)<br>Leading UK mobile network operator providing 2G to 5G services, retail stores, WiFi, and partnerships with Tesco Mobile and entertainment venues. | Telecommunications | 🇬🇧 Reading | 5,371 |  |
| 36 | [Circet](https://www.tamtam.ai/c/circet) (circet.com)<br>A global provider of telecom and energy infrastructure services, offering integrated solutions worldwide, recognized for agility, flexibility, and turnkey solutions | Telecommunications | 🇫🇷 Paris | 5,301 | 1993 |
| 37 | [SAGEMCOM](https://www.tamtam.ai/c/sagemcom) (sagemcom.com)<br>Provides innovative broadband internet, entertainment, and managed energy solutions. Designs sustainable technology, leader in its markets, with employee ownership. | Telecommunications | 🇫🇷 Bois-Colombes | 5,279 | 2008 |
| 38 | [Tele2](https://www.tamtam.ai/c/tele2) (tele2.com)<br>Enabling a wide range of connectivity solutions, including mobile, fixed, telephony, data networks, TV, streaming, and global IoT services | Telecommunications | 🇸🇪 Kista | 5,248 | 1993 |
| 39 | [Sunrise](https://www.tamtam.ai/c/sunrise-glattpark-opfikon) (sunrise.ch)<br>A telecommunications company in Switzerland offering mobile, Internet, TV, and fixed network services with leading gigabit fiber optic and 5G networks | Telecommunications | 🇨🇭 Glattpark (Opfikon) | 5,145 | 2021 |
| 40 | [Colt Technology Services](https://www.tamtam.ai/c/colt-technology-services) (colt.net)<br>Global digital infrastructure provider connecting businesses across 40+ countries with extensive networks, customer-focused innovation, and reliable connectivity solutions. | Telecommunications | 🇬🇧 London | 5,107 | 1992 |
| 41 | [Elisa](https://www.tamtam.ai/c/elisa) (elisa.fi)<br>A pioneer in telecommunications, digital services, and 5G, providing sustainable solutions to millions of customers globally with a focus on Finland and Estonia | Telecommunications | 🇫🇮 Helsinki | 4,786 | 1882 |
| 42 | [Orange Polska](https://www.tamtam.ai/c/orange-polska) (orange.pl)<br>Leading provider of telecommunications services in Poland, offering fixed-line voice, internet, VoIP, mobile services, data transmission, multimedia, and internet services to millions of customers | Telecommunications | 🇵🇱 Warsaw | 4,777 | 1991 |
| 43 | [Telefónica Tech](https://www.tamtam.ai/c/telefonica-tech) (telefonicatech.com)<br>Accelerating tech adoption through services in Cyber Security, Cloud, IoT, Big Data, AI, and Blockchain, with a strong presence on social media platforms | Telecommunications | 🇪🇸 Madrid | 4,392 |  |
| 44 | [Telenet group](https://www.tamtam.ai/c/telenet-group) (telenet.be)<br>A leading provider of media, telecommunications, and entertainment services in Belgium, offering seamless connectivity, innovative products, and superior customer experiences across three main brands | Telecommunications | 🇧🇪 Mechelen | 4,238 | 1996 |
| 45 | [A1 Telekom Austria AG](https://www.tamtam.ai/c/a1-telekom-austria-ag) (jobs.a1.com)<br>Provider of internet, voice, TV, and IT services in Austria, with a focus on sustainability and a range of digital solutions Part of a larger telecommunications group in Central and Eastern Europe | Telecommunications | 🇦🇹 Vienna | 4,226 | 1881 |
| 46 | [SE](https://www.tamtam.ai/c/se-silkeborg) (norlys.dk)<br>A leading energy and telecommunications company providing electricity, energy efficiency, broadband, and cable TV services to over 725,000 customersểm | Telecommunications | 🇩🇰 Silkeborg | 4,116 |  |
| 47 | [Telefónica Germany](https://www.tamtam.ai/c/telefonica-germany) (telefonica.de)<br>The company enables digital experiences anytime, anywhere, supporting customers with innovative products and services to accelerate digital transformation | Telecommunications | 🇩🇪 Munich | 4,055 | 1995 |
| 48 | [Alcatel-Lucent Enterprise](https://www.tamtam.ai/c/alcatel-lucent-enterprise) (al-enterprise.com)<br>Provides secure networking and communication solutions with built-in security, environmental focus, and compliance for organizations worldwide. | Telecommunications | 🇫🇷 Colombes | 4,055 | 2014 |
| 49 | [Fastweb](https://www.tamtam.ai/c/fastweb) (fastweb.it)<br>A leading Italian telecommunications operator promoting digital transformation for a connected, inclusive, and sustainable future, investing in ultra-broadband networks and innovative services | Telecommunications | 🇮🇹 Milan | 4,033 | 1999 |
| 50 | [NOS SGPS](https://www.tamtam.ai/c/nos-sgps) (nos.pt)<br>A forward-thinking organization providing cutting-edge fixed and mobile solutions for television, internet, voice, and data, leading in cinema distribution in Portugal | Telecommunications | 🇵🇹 Lisbon | 4,014 | 2014 |
| 51 | [PLAY](https://www.tamtam.ai/c/play) (play.pl)<br>A leading telecommunications company in Poland focused on innovative solutions and rapid growth, with over 16 million customers and a strong 4G LTE network | Telecommunications | 🇵🇱 Warsaw | 3,945 |  |
| 52 | [La Poste Mobile](https://www.tamtam.ai/c/la-poste-mobile) (lapostemobile.fr)<br>Provides affordable mobile telecom services with low-cost plans, accessible devices, extensive customer support, and promotes responsible digital usage for all ages. | Telecommunications | 🇫🇷 Chaville | 3,619 | 2011 |
| 53 | [SFR Business](https://www.tamtam.ai/c/sfr-business) (sfrbusiness.fr)<br>Provides innovative services supporting company growth and digital transformation. Offers high-performance fixed and mobile connectivity and ICT solutions to businesses and public administrations. | Telecommunications | 🇫🇷 Paris | 3,520 | 2008 |
| 54 | [IHS Towers](https://www.tamtam.ai/c/ihs-towers) (ihstowers.com)<br>A leading tower infrastructure company with over 40,000 towers in emerging markets, specializing in hybrid energy solutions and network monitoring | Telecommunications | 🇬🇧 London | 3,497 | 2001 |
| 55 | [Київстар](https://www.tamtam.ai/c/company-kyiv) (kyivstar.ua)<br>Leading Ukrainian provider of electronic communications, offering a wide range of mobile and fixed technologies, digital services, cyber security, and humanitarian aid | Telecommunications | 🇺🇦 Kyiv | 3,446 | 1994 |
| 56 | [Telekom HU](https://www.tamtam.ai/c/telekom-hu) (telekom.hu)<br>company focuses on digital technology as a driver of progress, encouraging continuous renewal and integration of work and personal life. | Telecommunications | 🇭🇺 Budapest | 3,403 | 1991 |
| 57 | [Polkomtel](https://www.tamtam.ai/c/polkomtel) (grupapolsatplus.pl)<br>Operator of a mobile network with 135 million users, offering voice, data, location-based services, mobile payments, supporting safety, health, education, and sports projects | Telecommunications | 🇵🇱 Warsaw | 3,330 | 1996 |
| 58 | [Telekom Romania Mobile](https://www.tamtam.ai/c/telekom-romania-mobile) (mobile.telekom.ro)<br>Telekom Romania Mobile offers mobile services focused on connecting people's worlds seamlessly and simply, without any fixed ideas | Telecommunications | 🇷🇴 Bucharest | 3,306 | 2014 |
| 59 | [Ukrtelecom](https://www.tamtam.ai/c/ukrtelecom) (ukrtelecom.ua)<br>The largest fixed-line telephony operator and internet provider in Ukraine, also owning a 3G/UMTS mobile operator, serving millions of subscribers | Telecommunications | 🇺🇦 Київ | 3,262 | 1993 |
| 60 | [O2 Czech Republic](https://www.tamtam.ai/c/o2-czech-republic) (o2.cz)<br>Leading integrated telecommunications provider in Czech Republic with millions of mobile and fixed accesses, cutting-edge technology, data centers, and IP TV services | Telecommunications | 🇨🇿 Prague | 3,122 | 2006 |
| 61 | [Sielte Spa](https://www.tamtam.ai/c/sielte-spa) (sielte.it)<br>A team of over 2000 professionals across Italy who install, test, manage, and engineer solutions in Telecom, Transportation, and Technology sectors with professionalism and customer trust | Telecommunications | 🇮🇹 Rome | 3,019 | 1925 |
| 62 | [Nova](https://www.tamtam.ai/c/nova-athens) (nova.gr)<br>Innovative provider of bundled home entertainment, communication, internet, telephony, and electric power services with a focus on employee development and growth | Telecommunications | 🇬🇷 Athens | 2,894 |  |
| 63 | [Sirti S.p.A.](https://www.tamtam.ai/c/sirti-s-p-a) (sirti.it)<br>A leading Italian technology company specializing in network infrastructures, telecom system integration, with international presence and projects in multiple sectors worldwide | Telecommunications | 🇮🇹 Sesto San Giovanni (MI) | 2,847 | 1921 |
| 64 | [Liberty Global](https://www.tamtam.ai/c/liberty-global) (libertyglobal.com)<br>Global provider of broadband, mobile communications, and infrastructure investing in fibre, 5G networks, content, technology, and innovation. | Telecommunications | 🇬🇧 London | 2,833 | 2005 |
| 65 | [TDC Brands](https://www.tamtam.ai/c/tdc-brands) (tdcbrands.dk)<br>Provides digital services, cloud solutions, and entertainment to millions of customers. Focuses on technology, privacy, and security in its operations across Denmark. | Telecommunications | 🇩🇰 Copenhagen | 2,824 |  |
| 66 | [Portugal Telecom](https://www.tamtam.ai/c/portugal-telecom) (telecom.pt)<br>A telecommunications and multimedia operator in Portugal, focused on innovation and customer experience, now part of a multinational company | Telecommunications | 🇵🇹 Lisbon | 2,823 |  |
| 67 | [U Mobile](https://www.tamtam.ai/c/u-mobile) (u.com.my)<br>This company provides mobile data and digital services, including fintech solutions like e-wallets and payment acceptance, with a focus on a modern network. | Telecommunications | 🇫🇷 Kuala Lumpur | 2,681 | 2006 |
| 68 | [Telent Technology Services Ltd](https://www.tamtam.ai/c/telent-technology-services-ltd) (telent.com)<br>Leading technology company specializing in designing, building, operating, and maintaining critical digital infrastructure for public sector, transport, emergency services, and network providers | Telecommunications | 🇬🇧 Warwick | 2,675 |  |
| 69 | [Gamma](https://www.tamtam.ai/c/gamma) (gammagroup.co)<br>Gamma is a leading supplier of Unified Communications services in the UK, Germany, Spain, and Benelux, offering robust solutions for communication and collaboration | Telecommunications | 🇬🇧 London | 2,588 | 2002 |
| 70 | [Sogetrel](https://www.tamtam.ai/c/sogetrel) (sogetrel.fr)<br>A leader in digital transformation, specializing in digital infrastructure services and connected devices to enhance citizens' lives, business performance, and sustainable development | Telecommunications | 🇫🇷 Issy-les-Moulineaux | 2,581 | 1985 |
| 71 | [Cellnex Telecom](https://www.tamtam.ai/c/cellnex-telecom) (cellnex.com)<br>The company is a leading provider of wireless telecommunications and broadcasting infrastructure across Europe, with a focus on shared-use services | Telecommunications | 🇪🇸 Barcelona | 2,542 |  |
| 72 | [Norlys](https://www.tamtam.ai/c/norlys) (norlys.dk)<br>Largest Danish integrated energy and telecom company providing electricity, fiber internet, mobile services, and green energy solutions across Denmark. | Telecommunications | 🇩🇰 Silkeborg | 2,533 |  |
| 73 | [Axione](https://www.tamtam.ai/c/axione) (axione.com)<br>A leading player in public network initiatives, specializing in telecommunications infrastructure deployment, operation, financing, and asset management for rural and urban areas | Telecommunications | 🇫🇷 Malakoff | 2,488 |  |
| 74 | [Telecom Jobs](https://www.tamtam.ai/c/telecom-jobs) (telecomjobs.uk)<br>The company aims to be the top resource for telecom jobs in the UK by connecting jobseekers and employers in the industry | Telecommunications | 🇬🇧 London | 2,468 | 2021 |
| 75 | [Camusat](https://www.tamtam.ai/c/camusat) (camusat.com)<br>A market leader in telecom infrastructure implementation, Camusat integrates traditional and innovative technologies to optimize network development, prioritize employee well-being, and minimize environmental impact | Telecommunications | 🇫🇷 Paris | 2,439 |  |
| 76 | [Hrvatski Telekom](https://www.tamtam.ai/c/hrvatski-telekom) (hrvatskitelekom.hr)<br>Leading Croatian telecommunications company offering fixed, mobile, internet, and international communication services with focus on innovation and customer satisfaction. | Telecommunications | 🇭🇷 Zagreb | 2,426 |  |
| 77 | [DELTA Fiber](https://www.tamtam.ai/c/delta-fiber) (deltafiber.nl)<br>Provides broadband, television, and telephony services to consumers and businesses in the Netherlands under DELTA and Caiway brands. | Telecommunications | 🇳🇱 Schiedam | 2,398 |  |
| 78 | [A1 Bulgaria](https://www.tamtam.ai/c/a1-bulgaria) (a1.bg)<br>Leading provider of communication, payment, and entertainment services with mobile and fixed services, high-speed internet, TV channels, financial services, and ICT solutions | Telecommunications | 🇧🇬 Sofia | 2,382 | 1994 |
| 79 | [Fastweb + Vodafone](https://www.tamtam.ai/c/fastweb-vodafone) (fastwebvodafone.it)<br>Integration of fixed and mobile networks to provide innovative, competitive digital services for families, businesses, and national digital transformation. | Telecommunications | 🇮🇹 Milan | 2,367 | 2025 |
| 80 | [Odido Nederland](https://www.tamtam.ai/c/odido-nederland) (odido.nl)<br>Odido is a telecom provider focused on making technology accessible, inclusive, and sustainable, offering mobile, fiber, and TV services with a human touch | Telecommunications | 🇳🇱 The Hague | 2,360 | 2023 |
| 81 | [Vivacom](https://www.tamtam.ai/c/vivacom) (vivacom.bg)<br>Innovative digital telecom company in Southeast Europe offering a wide range of telecommunications solutions, including 5G network, IoT, cloud services, and more | Telecommunications | 🇧🇬 Sofia | 2,322 |  |
| 82 | [JNT](https://www.tamtam.ai/c/jnt) (jnt.fi)<br>A dynamic telecom company offering a range of services including data, voice, internet, landline, mobile, fiber, cable TV, communication packages, and security solutions | Telecommunications | 🇫🇮 Jakobstad | 2,314 |  |
| 83 | [DIGI](https://www.tamtam.ai/c/digi) (one.hu)<br>A leading provider in Hungary offering cable television and high-speed technology solutions with a focus on quality customer experience and modern content services | Telecommunications | 🇭🇺 Budapest | 2,172 |  |
| 84 | [T-Mobile Polska](https://www.tamtam.ai/c/t-mobile-polska) (magentateam.pl)<br>Provider of telecommunications and technology solutions focused on innovation, serving individual and business customers with agile, diverse team culture. | Telecommunications | 🇵🇱 Warsaw | 2,157 |  |
| 85 | [Senture, LLC](https://www.tamtam.ai/c/senture-llc) (senture.com)<br>A premier domestic contact center solutions company providing comprehensive service support nationally, focused on delivering excellent customer experiences and award-winning support services | Telecommunications | 🇬🇧 London | 2,129 | 2003 |
| 86 | [TalkTalk](https://www.tamtam.ai/c/talktalk) (talktalkgroup.com)<br>A dynamic company welcoming innovative thinkers and problem-solvers who challenge the status quo, offering a fun, flexible, and rewarding work environment | Telecommunications | 🇬🇧 Salford | 2,100 | 2002 |
| 87 | [Open Fiber](https://www.tamtam.ai/c/open-fiber) (openfiber.it)<br>Open Fiber is an Italian company building ultra-fast fiber optic networks to bridge the digital divide and provide innovative digital services for all citizens | Telecommunications | 🇮🇹 Rome | 2,085 | 2016 |
| 88 | [DNA Oyj](https://www.tamtam.ai/c/dna-oyj) (corporate.dna.fi)<br>provides telecommunications connections, services, and devices for homes and workplaces, supporting digitalisation and simplifying daily life | Telecommunications | 🇫🇮 Helsinki | 2,081 | 2001 |
| 89 | [T-Mobile Czech Republic a.s.](https://www.tamtam.ai/c/t-mobile-czech-republic-a-s) (t-mobile.cz)<br>Providing reliable and accessible mobile communication services with a human approach, focusing on quality, teamwork, and social responsibility. | Telecommunications | 🇨🇿 Prague | 2,016 | 1996 |
| 90 | [GlobalConnect](https://www.tamtam.ai/c/globalconnect) (globalconnectgroup.com)<br>A leading digital infrastructure provider in Northern Europe offering Fiber-To-The-Home services to households and connectivity solutions to enterprises | Telecommunications | 🇸🇪 Stockholm | 1,996 |  |
| 91 | [TDC NET](https://www.tamtam.ai/c/tdc-net) (tdcnet.dk)<br>Connecting Denmark through a century of telecommunications, TDC NET continues to build the next generation of digital infrastructure for a connected future | Telecommunications | 🇩🇰 Copenhagen | 1,862 |  |
| 92 | [iliad](https://www.tamtam.ai/c/iliad) (iliad.it)<br>A new player in the Italian mobile telephony market, iliad offers transparent and advantageous services nationwide, targeting those disillusioned with traditional operators | Telecommunications | 🇮🇹 Milan | 1,855 | 2017 |
| 93 | [CityFibre](https://www.tamtam.ai/c/cityfibre) (cityfibre.com)<br>We build open-access fiber networks across the UK, providing fast and reliable broadband, Ethernet, and mobile connections to homes, businesses, and institutions | Telecommunications | 🇬🇧 London | 1,800 | 2011 |
| 94 | [Grupo MASMOVIL](https://www.tamtam.ai/c/grupo-masmovil) (grupomasmovil.com)<br>An Iberian Telecom operator providing fixed, mobile, broadband Internet services, green energy, telemedicine, security, with a focus on customer satisfaction and sustainability | Telecommunications | 🇪🇸 Alcobendas | 1,772 | 2006 |
| 95 | [Eutelsat](https://www.tamtam.ai/c/eutelsat-group) (eutelsat.com)<br>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 | 🇫🇷 Issy-les-Moulineaux | 1,755 |  |
| 96 | [TDF](https://www.tamtam.ai/c/tdf) (tdf.fr)<br>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 | 🇫🇷 Montrouge | 1,741 | 1975 |
| 97 | [ASN](https://www.tamtam.ai/c/asn) (asn.com)<br>Designs, installs, and maintains global optical submarine cable systems for telecom, content providers, and offshore oil and gas industries. | Telecommunications | 🇫🇷 Les Ulis | 1,717 | 1994 |
| 98 | [Ofcom](https://www.tamtam.ai/c/ofcom) (ofcom.org.uk)<br>Regulating UK communications, ensuring fair home phone and mobile services, overseeing TV, radio, and content, protecting consumers, promoting access to technology | Telecommunications | 🇬🇧 London | 1,700 | 2003 |
| 99 | [ANOVO](https://www.tamtam.ai/c/anovo) (anovo.com)<br>It provides after-sales support solutions for technology products, including repair, refurbishment, and eco-friendly disposal, enhancing customer satisfaction and efficiency. | Telecommunications | 🇫🇷 France | 1,667 | 1987 |
| 100 | [Fractalia](https://www.tamtam.ai/c/fractalia) (fractaliasystems.com)<br>Specialized in remote management of connected infrastructures: digital homes, retail and hospitality networks, corporate infrastructure networks. Offers specific solutions in wifi, digital signage, in-store analytics. | Telecommunications | 🇪🇸 Tres Cantos | 1,639 | 1999 |

## 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 Europe

- [The largest companies in Europe](https://www.tamtam.ai/l/largest-companies-in-europe) (213,553)
- [Multinational companies in Europe](https://www.tamtam.ai/l/multinational-companies-in-europe) (42,025)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)
- [Retail chains in Europe](https://www.tamtam.ai/l/retail-chains-in-europe) (19,259)
- [Manufacturers in Europe](https://www.tamtam.ai/l/manufacturers-in-europe) (18,156)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,698)
- [SaaS companies in Europe](https://www.tamtam.ai/l/saas-companies-in-europe) (13,682)
- [Software Development companies in Europe](https://www.tamtam.ai/l/software-development-companies-in-europe) (12,950)
- [Financial services firms in Europe](https://www.tamtam.ai/l/financial-services-firms-in-europe) (12,943)
- [IT Services and IT Consulting companies in Europe](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-europe) (11,705)
- [IT services companies in Europe](https://www.tamtam.ai/l/it-services-companies-in-europe) (11,376)
- [Hardware manufacturers in Europe](https://www.tamtam.ai/l/hardware-companies-in-europe) (10,565)
- [Family-owned companies in Europe](https://www.tamtam.ai/l/family-owned-companies-in-europe) (9,878)
- [Critical infrastructure operators in Europe](https://www.tamtam.ai/l/critical-infrastructure-operators-in-europe) (9,815)
- [Financial Services companies in Europe](https://www.tamtam.ai/l/financial-services-companies-in-europe) (9,480)
- [Consulting firms in Europe](https://www.tamtam.ai/l/consulting-firms-in-europe) (8,900)
- [Public sector organisations in Europe](https://www.tamtam.ai/l/public-sector-organisations-in-europe) (8,568)
- [Education providers in Europe](https://www.tamtam.ai/l/education-companies-in-europe) (7,925)
- [Companies with a mobile app in Europe](https://www.tamtam.ai/l/companies-with-mobile-app-in-europe) (7,898)
- [Distributors and wholesalers in Europe](https://www.tamtam.ai/l/distributors-and-wholesalers-in-europe) (7,573)
- [Retail companies in Europe](https://www.tamtam.ai/l/retail-companies-in-europe) (6,240)
- [Healthcare providers in Europe](https://www.tamtam.ai/l/healthcare-providers-in-europe) (6,132)
- [E-commerce companies in Europe](https://www.tamtam.ai/l/ecommerce-companies-in-europe) (5,864)
- [Hotel and hospitality groups in Europe](https://www.tamtam.ai/l/hospitality-groups-in-europe) (5,741)

## The same list elsewhere

- [Telecommunications companies in the world](https://www.tamtam.ai/l/telecommunications-companies-in-the-world) (3,307)
- [Telecommunications companies in France](https://www.tamtam.ai/l/telecommunications-companies-france) (461)
- [Telecommunications companies in the United Kingdom](https://www.tamtam.ai/l/telecommunications-companies-united-kingdom) (216)
- [Telecommunications companies in Spain](https://www.tamtam.ai/l/telecommunications-companies-spain) (114)
- [Telecommunications companies in Italy](https://www.tamtam.ai/l/telecommunications-companies-italy) (85)
- [Telecommunications companies in Germany](https://www.tamtam.ai/l/telecommunications-companies-germany) (80)
- [Telecommunications companies in Sweden](https://www.tamtam.ai/l/telecommunications-companies-sweden) (39)
- [Telecommunications companies in Belgium](https://www.tamtam.ai/l/telecommunications-companies-belgium) (36)
- [Telecommunications companies in the Netherlands](https://www.tamtam.ai/l/telecommunications-companies-netherlands) (31)
- [Telecommunications companies in Switzerland](https://www.tamtam.ai/l/telecommunications-companies-switzerland) (29)
- [Telecommunications companies in Poland](https://www.tamtam.ai/l/telecommunications-companies-poland) (25)
- [Telecommunications companies in Portugal](https://www.tamtam.ai/l/telecommunications-companies-portugal) (25)

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Source: https://www.tamtam.ai/l/telecommunications-companies-in-europe