These Lombardy-based telecommunications companies primarily offer fixed, mobile, and digital services, including network infrastructure, broadband, cybersecurity, and cloud solutions. They range from large established groups like TIM, which provides comprehensive services in Italy and Brazil, to newer entrants such as iliad, focusing on mobile telephony. Other key players include wind tre, offering connections and energy services, and Fastweb, investing in ultra-broadband networks. The list also features specialized firms like Sirti S.p.A., focused on network infrastructures, and SIAE MICROELETTRONICA, a provider of wireless transmission equipment.
A notable pattern is the concentration of headquarters in Milan, indicating the city's role as a central hub for the telecommunications industry in Lombardy. Many companies, such as Fastweb and Retelit, were founded around the turn of the millennium, suggesting a period of significant growth and development in the sector.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
TIMgruppotim.it
Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil. |
22,417 | |||
| 2 |
wind trewindtregroup.it
Provides connections, energy, and insurance services for families and businesses, supporting digital and sustainable transformation with telecommunications, broadband, cybersecurity, and cloud solutions. |
7,136 | |||
| 3 |
Fastwebfastweb.it
A leading Italian telecommunications operator promoting digital transformation for a connected, inclusive, and sustainable future, investing in ultra-broadband networks and innovative services |
4,033 | |||
| 4 |
Sirti S.p.A.sirti.it
A leading Italian technology company specializing in network infrastructures, telecom system integration, with international presence and projects in multiple sectors worldwide |
2,847 | |||
| 5 |
Fastweb + Vodafonefastwebvodafone.it
Integration of fixed and mobile networks to provide innovative, competitive digital services for families, businesses, and national digital transformation. |
2,367 | |||
| 6 | 1,855 | ||||
| 7 |
MTmilanoteleport.com
Specializing in alternative telecommunication solutions, including VSAT, 4G/5G, NOC services, cybersecurity, and IoT integration, with on-site and remote support available 24/7 |
1,384 | |||
| 8 |
TIM Enterprisetimenterprise.it
TIM BUSINESS offers integrated, modular, and flexible telecommunications solutions for professionals, businesses, and enterprises in Italy, with quality service and customized options |
1,359 | |||
| 9 |
Valtellina S.p.A.valtellinaspa.it
The company is a leading Italian operator in building and maintaining technological infrastructures for telecommunications, energy, lighting, transport, offering end-to-end services and digital solutions |
931 | |||
| 10 | 
TRANSCOM WORLDWIDE S.P.A.linkedin.com
Provider of call center services, consulting, market research, and marketing support activities |
861 | |||
| 11 |
Retelitretelit.it
Italian leader in digital transformation projects, offering integrated ICT telco and digitalization services with comprehensive fiber-optic network and nationwide Data Centers |
837 | |||
| 12 |
SIAE MICROELETTRONICAsiaemic.com
Provides wireless transmission equipment including microwave and millimeter wave radios, cell site gateways, and network management systems globally. |
766 | |||
| 13 |
IRIDEOS S.p.A.retelit.it
The company supports digital transformation through fiber optics, cloud, data centers, IT services, and security solutions, forming Italy's largest B2B ICT player |
480 | |||
| 14 |
Soleto SpAsoletospa.it
Since 1992, we specialize in designing, installing, and maintaining telecommunications, electrical, and energy efficiency systems nationwide for industrial, commercial, civil, and residential sectors |
372 | |||
| 15 |
Piramis Grouppiramisgroup.com
A telecommunications company with a strong presence in Italy, providing innovative solutions and excellent customer service in partnership with Vodafone |
357 | |||
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. | |||||
| 16 |
4U Italia srl4uitalia.it
4U Italia srl specializes in Contact Center services, outsourcing to businesses, Business Process Outsourcing, Customer Relationship Management, and outbound activities |
264 | |||
| 17 |
Enterretelit.it
Italian ICT hub providing cloud, data center, fiber optic, security, and innovative solutions for businesses of all sizes, built on a strong technology platform |
258 | |||
| 18 | 250 | ||||
| 19 |
Comtelcomtelitalia.it
An Italian ICT Solution Provider with over 200 employees, offering infrastructure solutions, unified communication, virtual PBX platforms, and global services |
222 | |||
| 20 |
DIGI Italiadigimobil.it
A virtual mobile operator providing innovative mobile phone offers, including international minutes and internet navigation, as part of a telecommunications group |
175 | |||
| 21 | 164 | ||||
| 22 |
INTRED S.p.A.intred.it
INTRED is a telecommunications company based in Milan, offering internet services nationwide with a focus on business users in Northern Italy |
158 | |||
| 23 |
SM-OPTICSsm-optics.com
SM-OPTICS drives innovation in fiber based communication, offering disaggregated platforms, optical domain controllers, and professional services for network modernization worldwide |
154 | |||
| 24 |
FIMO Group - Custom made solutions for Telecom equipmentfimoworld.com
Design and supply of innovative, custom-made components and standard products supporting global telecom infrastructure and digital development. |
150 | |||
| 25 |
EI Towers S.p.A.eitowers.it
A leading independent company in Italy managing TV, Radio, Telecommunications, and IoT infrastructures, offering a wide range of services nationwide |
150 | |||
| 26 | 139 | ||||
| 27 |
Huawei Mobile Italiaconsumer.huawei.com
Global leader in developing, manufacturing, and marketing network and telecommunications products Committed to bridging the digital divide and creating a more connected world |
127 | |||
| 28 | 94 | ||||
| 29 |
MDS Impiantimdsimpianti.com
A company with over a decade of experience in installation and telecommunications sectors, specializing in delivery, maintenance, and network construction services with Telecom Italia contracts |
69 | |||
| 30 |
Comtel Innovation - Internationalcomtelitalia.it
A leading provider of telecom, networking, and cloud services for businesses, offering R&D, software solutions, telecommunications, and energy solutions in Europe |
31 | |||
| 31 |
Satellite Communication Servicessatcs.com
Satellite Communication Services specializes in satellite technologies for Oil&Gas, providing reliable communication systems, network design, and round-the-clock assistance |
12 | |||
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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 Lombardy
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- Manufacturers in Lombardy 512
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- Financial services firms in Lombardy 262
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- Hardware manufacturers in Lombardy 216
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- Transportation, Logistics, Supply Chain and Storage companies in Lombardy 135
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- SaaS companies in Lombardy 125