Company lists · Data refreshed September 2026

Top 10 Telecommunications companies based in Milano, Italy

RevenueBase identified 26 telecommunications companies headquartered in Milano, Italy as of September 2026 and tracks 25,250 professional contacts across them, including 5,514 with verified work emails and 778 with mobile numbers. Roma is the largest hub.

This list covers telecommunications companies headquartered in Milano, 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 13, 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 13, 2026 86% judged on-target in blind review
26Companies
25,250Contacts tracked
5,514Verified emails
778Mobile numbers
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The 10 largest telecommunications companies based in Milano, Italy

Ranked by team size
Top 10 of 26 telecommunications companies based in Milano, Italy, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMilano, ItalyHQ checked Sep 13, 202610001+19,263 contacts →

Indirect evidence

“We are driving the digital transition of Italy and Brazil with innovative technologies and services because we want to contribute to accelerating the sustainable growth of the…”

Source: RevenueBase Database · checked Sep 13, 2026
2Indirect evidenceMilano, ItalyHQ checked Sep 13, 20265,001-10,0003,850 contacts →

Indirect evidence

“WINDTRE è l’operatore italiano che offre connessioni, energia e prodotti assicurativi*.”

Source: RevenueBase Database · checked Sep 13, 2026
3Indirect evidenceMilano, ItalyHQ checked Sep 13, 2026501-1,000181 contacts →

Indirect evidence

“Dal 1° agosto 2024 Irideos S.p.A è diventata Retelit, leader in Italia nel settore delle Telecomunicazioni focalizzato sul mercato B2B, con un'offerta che integra infrastrutture e…”

Source: RevenueBase Database · checked Sep 13, 2026
4Indirect evidenceMilano, ItalyHQ checked Sep 13, 202611-5047 contacts →

Indirect evidence

“KMD è unico Master Dealer Nazionale per Fastweb, Sky, Eolo, Tiscali, Linkem e ho.”

Source: RevenueBase Database · checked Sep 13, 2026
5Indirect evidenceMilano, ItalyHQ checked Sep 13, 202611-5029 contacts →

Indirect evidence

“Nel mercato ICT trovi sempre qualcuno che ha la soluzione pronta.”

Source: RevenueBase Database · checked Sep 13, 2026
6Indirect evidenceMilano, ItalyHQ checked Sep 13, 202611-5016 contacts →

Indirect evidence

“La mission di OlimonTel è quella di connettere ogni singolo cliente alla rete globale offrendo servizi affidabili, innovativi ed economicamente vantaggiosi.”

Source: RevenueBase Database · checked Sep 13, 2026
7Indirect evidenceMilano, ItalyHQ checked Sep 13, 202611-508 contacts →

Indirect evidence

“Ultranet S.r.l.”

Source: RevenueBase Database · checked Sep 13, 2026
8Indirect evidenceMilano, ItalyHQ checked Sep 13, 202611-507 contacts →

Indirect evidence

“ReteTel Italia, ramo della Holding Gruppo Vertex, è specializzata nella fornitura di servizi di telecomunicazioni ed accessi ad internet su tutto il territorio nazionale, dedicata…”

Source: RevenueBase Database · checked Sep 13, 2026
9Indirect evidenceMilano, ItalyHQ checked Sep 13, 20261-106 contacts →

Indirect evidence

“A Different Company since 2010 provides global telecom services to operators, wholesale carriers, aggregators, and resellers.”

Source: RevenueBase Database · checked Sep 13, 2026
10Indirect evidenceMilano, ItalyHQ checked Sep 13, 202611-505 contacts →

Indirect evidence

“N4COM S.r.l.”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 10 of 26 telecommunications companies based in Milano, Italy

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Telecommunications companies based in Milano, Italy at a glance

As of Sep 13, 2026
21.8%Verified-email coverage
3.1%Mobile-number coverage
971.2Average contacts per company
11-50Median size (employees)
169.2%Largest-city concentration · Roma
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
6
11-50
13
51-200
2
501-1,000
2
5,001-10,000
2
10001+
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

Company record updated

Median 79.0d

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 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 Milano, Italy whose own description of what they do matches “telecommunications 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 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 companies, and records with no verified work email. Companies headquartered outside Milano 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, 5,514 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 13, 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.

Telecommunications companies by metro in Italy

  • Telecommunications companies in Roma44
  • Telecommunications companies in Milano27

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 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 companies are there based in Milano, Italy?

RevenueBase identified 26 telecommunications companies headquartered in Milano, 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?

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

Which city has the most telecommunications companies?

Roma leads with 44 headquartered companies, followed by Milano (27) and Milan (18).

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 5,514 verified decision-maker contacts tracked across these 26 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 13, 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.