Company lists · Data refreshed September 2026

Top 25 Telecommunications infrastructure companies based in Italy

Name: Telecommunications infrastructure companies based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 387 companies tracked

RevenueBase identified 387 telecommunications infrastructure companies headquartered in Italy as of September 2026 and tracks 13,951 professional contacts across them, including 4,970 with verified work emails. Roma is the largest hub.

This list covers telecommunications infrastructure companies headquartered in Italy, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

387Companies

13,951Contacts tracked

4,970Verified emails

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The 25 largest telecommunications infrastructure companies based in Italy

Ranked by team size

Top 25 of 387 telecommunications infrastructure companies based in Italy, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications infrastructure companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Wind TRE	Indirect evidence	Milano, ItalyHQ checked Sep 16, 2026	5,001-10,000	3,850 contacts →
	Indirect evidence “WINDTRE è l’operatore italiano che offre connessioni, energia e prodotti assicurativi*.” Source: RevenueBase Database · checked Sep 16, 2026
2	Fastweb Vodafone	Indirect evidence	Milan, ItalyHQ checked Sep 16, 2026	5,001-10,000	1,520 contacts →
	Indirect evidence “A partire dal 1° gennaio 2026 Fastweb S.p.A.” Source: RevenueBase Database · checked Sep 16, 2026
3	Tiscali	Indirect evidence	Cagliari, ItalyHQ checked Sep 16, 2026	1,001-5,000	1,009 contacts →
	Indirect evidence “Tiscali Italia S.p.A.” Source: RevenueBase Database · checked Sep 16, 2026
4	Circet Italia S.P.A	Indirect evidence	San Giovanni Teatino, ItalyHQ checked Sep 16, 2026	1,001-5,000	668 contacts →
	Indirect evidence “Circet Italia opera da oltre 30 anni nel mercato di sistemi e reti di telecomunicazione, energia e trasporti con servizi di progettazione, installazione e manutenzione di grandi…” Source: RevenueBase Database · checked Sep 16, 2026
5	Retelit	Strong evidence	Milano, ItalyHQ checked Sep 16, 2026	501-1,000	623 contacts →
	Strong evidence “Retelit is one of the leaders in Italy in the Telecommunications sector focused on the B2B market, with an offer that integrates infrastructure and digital solutions, and with a…” Source: RevenueBase Database · checked Sep 16, 2026
6	Inwit S.P.A	Partial evidence	Roma, ItalyHQ checked Sep 16, 2026	201-500	272 contacts →
	Partial evidence “INWIT (Italian Wireless Infrastructures) is active in the telco infrastructure business.” Source: RevenueBase Database · checked Sep 16, 2026
7	Intred S.P.A	Indirect evidence	Brescia, ItalyHQ checked Sep 16, 2026	51-200	144 contacts →
	Indirect evidence “INTRED nasce a Milano nel gennaio 1996 con l’obiettivo di fornire servizi di Telecomunicazioni ed Internet.” Source: RevenueBase Database · checked Sep 16, 2026
8	OPNET	Indirect evidence	Milan, ItalyHQ checked Sep 16, 2026	201-500	138 contacts →
	Indirect evidence “OpNet è la Company Wholesale WindTre, partner di operatori TLC e aziende di settori adiacenti, come Multiutilities, Assicurazioni e Grande Distribuzione, che necessitano di…” Source: RevenueBase Database · checked Sep 16, 2026
9	Selektra Italia	Indirect evidence	Pomezia, ItalyHQ checked Sep 16, 2026	51-200	132 contacts →
	Indirect evidence “SELEKTRA ITALIA Srl nasce a fine 2018 dalla fusione societaria di TELEKTRA e SETEL, due società che hanno nei Servizi e Prodotti per Telecomunicazioni il loro Core Business.” Source: RevenueBase Database · checked Sep 16, 2026
10	Milani SPA	Indirect evidence	Osnago, ItalyHQ checked Sep 16, 2026	201-500	128 contacts →
	Indirect evidence “Fondata come una piccola azienda di famiglia nel 1964, oggi la società Milani SpA ha ampliato la natura delle sue attività presentandosi sul mercato per la realizzazione di lavori…” Source: RevenueBase Database · checked Sep 16, 2026
11	TWT	Partial evidence	Milan, ItalyHQ checked Sep 16, 2026	51-200	116 contacts →
	Partial evidence “TWT S.p.A, an independent telecommunications company founded in 1995, addresses the Reseller, Carrier and Corporate markets with a full range of integrated communication services…” Source: RevenueBase Database · checked Sep 16, 2026
12	EI Towers S.P.A	Indirect evidence	Lissone, ItalyHQ checked Sep 16, 2026	501-1,000	110 contacts →
	Indirect evidence “EI TOWERS è l’azienda indipendente leader in Italia nella gestione delle infrastrutture per TV, Radio, Telecomunicazioni ed Internet of Things.” Source: RevenueBase Database · checked Sep 16, 2026
13	Sertori S.P.A	Indirect evidence	Milano, ItalyHQ checked Sep 16, 2026	201-500	107 contacts →
	Indirect evidence “L'AZIENDA Da molti decenni Sertori S.p.A.” Source: RevenueBase Database · checked Sep 16, 2026
14	EXI S.P.A	Partial evidence	Rome, ItalyHQ checked Sep 16, 2026	201-500	105 contacts →
	Partial evidence “EXI is a market leader in the design, roll-out and maintenance of mobile telecommunication services, actively serving all main telecom operators in Italy, with a special focus on…” Source: RevenueBase Database · checked Sep 16, 2026
15	Fimo Group	Partial evidence	Milano, ItalyHQ checked Sep 16, 2026	51-200	103 contacts →
	Partial evidence “Supporting the sustainable development of the world’s Telecom Infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
16	Sm-Optics	Indirect evidence	Cologno Monzese, ItalyHQ checked Sep 16, 2026	201-500	102 contacts →
	Indirect evidence “SM-OPTICS is company driving innovation in fiber based communication, counting on a proven management and R&D team with 20+ years of experience in the optical domain as well as…” Source: RevenueBase Database · checked Sep 16, 2026
17	A TLC S.R.L.	Indirect evidence	Ancona, ItalyHQ checked Sep 16, 2026	51-200	99 contacts →
	Indirect evidence “In 2009 AB Medica Group, following its long-term strategy regarding business diversification, established A TLC S.R.L, targeting the acquisition of some strategic assets of Aethra…” Source: RevenueBase Database · checked Sep 16, 2026
18	Fibermind S.R.L	Partial evidence	ItalyHQ checked Sep 16, 2026	51-200	89 contacts →
	Partial evidence “Fibermind is an Italian company of excellence in civil engineering and telecommunications, specialized in consulting and engineering design in the field of construction and…” Source: RevenueBase Database · checked Sep 16, 2026
19	Calzavara	Partial evidence	Basiliano, ItalyHQ checked Sep 16, 2026	51-200	82 contacts →
	Partial evidence “Since 1966 we have been reinventing telecommunications structures.” Source: RevenueBase Database · checked Sep 16, 2026
20	B.B.Bell SPA	Indirect evidence	Turin, ItalyHQ checked Sep 16, 2026	51-200	75 contacts →
	Indirect evidence “Costituita nel 2003, è un’azienda specializzata in servizi di banda ultra larga e telecomunicazioni wireless.” Source: RevenueBase Database · checked Sep 16, 2026
21	Elettra TLC	Indirect evidence	Roma, ItalyHQ checked Sep 16, 2026	51-200	71 contacts →
	Indirect evidence “Company operating in the market of submarine cable system and related activities” Source: RevenueBase Database · checked Sep 16, 2026
22	Laboratori Guglielmo Marconi	Indirect evidence	Pontecchio Marconi, ItalyHQ checked Sep 16, 2026	51-200	68 contacts →
	Indirect evidence “Laboratori Guglielmo Marconi (LABS) is an engineering company which provides highly skilled solutions in the design, development and implementation of wire-line and wireless…” Source: RevenueBase Database · checked Sep 16, 2026
23	Reti S.R.L	Partial evidence	Thiene, ItalyHQ checked Sep 16, 2026	11-50	66 contacts →
	Partial evidence “We develop innovative and scalable network infrastructures, we provide advanced ICT services making our mission concrete: to amplify the communication of companies that consider…” Source: RevenueBase Database · checked Sep 16, 2026
24	Sittel S.P.A	Indirect evidence	Roma, ItalyHQ checked Sep 16, 2026	201-500	56 contacts →
	Indirect evidence “Sittel SpA – Soluzioni Infrastrutturali Telefoniche ed Elettriche.” Source: RevenueBase Database · checked Sep 16, 2026
25	Clouditalia Telecomunicazioni	Indirect evidence	Arezzo, ItalyHQ checked Sep 16, 2026	201-500	56 contacts →
	Indirect evidence “Clouditalia nasce dal progetto di acquisizione del ramo di azienda di Eutelia.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: telecommunications infrastructure companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names telecommunications infrastructure companies.
Partial evidence: Its own public description names part of telecommunications infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications infrastructure companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 387 telecommunications infrastructure companies based in Italy

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Telecommunications infrastructure companies based in Italy at a glance

As of Sep 16, 2026

35.6%Verified-email coverage

36.0Average contacts per company

11-50Median size (employees)

6.2%Largest-city concentration · Roma

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

103

11-50

171

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Italy, so it is reported there. Company counts and contact totals on this page are exact for Italy, over 387 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among telecommunications infrastructure companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Italy whose own description of what they do matches “telecommunications infrastructure companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names telecommunications infrastructure companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among telecommunications infrastructure companies, and records with no verified work email. Companies headquartered outside Italy are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 4,970 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names telecommunications infrastructure companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many telecommunications infrastructure companies are there based in Italy?

RevenueBase identified 387 telecommunications infrastructure companies headquartered in Italy as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Wind TRE, headquartered in Milano, tops this list with the largest team on record.

Which city has the most telecommunications infrastructure companies?

Roma leads with 24 headquartered companies, followed by Milano (20) and Napoli (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,970 verified decision-maker contacts tracked across these 387 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.