Company lists · Data refreshed September 2026

Top 25 Telecom engineering contractors based in Italy

Name: Telecom engineering contractors based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 542 companies tracked

RevenueBase identified 542 company matches for telecom engineering contractors associated with Italy as of September 2026 and tracks 11,245 professional contacts across them, including 4,143 with verified work emails. Rome is the largest hub.

This list covers company matches for telecom engineering contractors associated with Italy, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

542Companies

11,245Contacts tracked

4,143Verified emails

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The 25 largest telecom engineering contractors based in Italy

Ranked by team size

Top 25 of 542 company matches for telecom engineering contractors based in Italy, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Sielte SPA	Exact match	Rome, ItalyHQ recorded Sep 19, 2026	1,001-5,000	2,448 contacts →
	Exact match “Oltre Persone, distribuite su 21 Centri Operativi in tutta Italia, che ogni giorno installano, collaudano, gestiscono il commissioning e le manutenzioni, progettano, implementano…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Sirti S.P.A	Exact match	Sesto San Giovanni (mi), ItalyHQ recorded Sep 19, 2026	1,001-5,000	2,332 contacts →
	Exact match “Sirti is Italy's leading technology company in the design and production of network infrastructures and telecoms system integration.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Circet Italia S.P.A	Exact match	San Giovanni Teatino, ItalyHQ recorded Sep 19, 2026	1,001-5,000	668 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Siat Installazioni S.P.A	Exact match	Ariccia, ItalyHQ recorded Sep 19, 2026	501-1,000	235 contacts →
	Exact match “Siamo presenti sul mercato nazionale fin dal 1979.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Coemi S.P.A	Exact match	Priolo Gargallo, ItalyHQ recorded Sep 19, 2026	201-500	184 contacts →
	Exact match “COEMI was established in 1974 as part of the Firm Prestigiacomo, which had already been operating for a long time in the business of maintaining electrical systems.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Milani SPA	Exact match	Osnago, ItalyHQ recorded Sep 19, 2026	201-500	128 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	LA SIA SPA	Exact match	ItalyHQ recorded Sep 19, 2026	51-200	112 contacts →
	Exact match “LA SIA è una società di progettazione e management che opera in ambito ingegneria e servizi di ingegneria.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Sertori S.P.A	Exact match	Milan, ItalyHQ recorded Sep 19, 2026	201-500	107 contacts →
	Exact match “L'AZIENDA Da molti decenni Sertori S.p.A.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Fimo Group	Exact match	Milan, ItalyHQ recorded Sep 19, 2026	51-200	103 contacts →
	Exact match “Supporting the sustainable development of the world’s Telecom Infrastructure.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Sm-Optics	Exact match	Cologno Monzese, ItalyHQ recorded Sep 19, 2026	201-500	102 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Fibermind S.R.L	Exact match	ItalyHQ recorded Sep 19, 2026	51-200	89 contacts →
	Exact match “Fibermind is an Italian company of excellence in civil engineering and telecommunications, specialized in consulting and engineering design in the field of construction and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Be-On SRL	Exact match	Rome, ItalyHQ recorded Sep 19, 2026	51-200	68 contacts →
	Exact match “Siamo una società di servizi con una lunga esperienza nella progettazione specializzata di infrastrutture, telecomunicazioni, impianti speciali e tecnologie dell’informazione e…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Laboratori Guglielmo Marconi	Exact match	Pontecchio Marconi, ItalyHQ recorded Sep 19, 2026	51-200	68 contacts →
	Exact match “Laboratori Guglielmo Marconi (LABS) is an engineering company which provides highly skilled solutions in the design, development and implementation of wire-line and wireless…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Ac2 SRL	Exact match	Zafferana Etnea, ItalyHQ recorded Sep 19, 2026	11-50	57 contacts →
	Exact match “AC2 è un’azienda specializzata nell’erogazione di servizi di Ingegneria, Project Management e soluzioni ICT a supporto della gestione del ciclo di vita di opere e infrastrutture…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Sittel S.P.A	Exact match	Rome, ItalyHQ recorded Sep 19, 2026	201-500	56 contacts →
	Exact match “Sittel SpA – Soluzioni Infrastrutturali Telefoniche ed Elettriche.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Todos.It S.R.L. Telecomunicazioni	Exact match	Pisogne, ItalyHQ recorded Sep 19, 2026	51-200	54 contacts →
	Exact match “Todos.it S.r.l.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	MDS Impianti	Exact match	Colico, ItalyHQ recorded Sep 19, 2026	51-200	54 contacts →
	Exact match “MDS Impianti vanta un’esperienza decennale nei settori dell’impiantistica e delle telecomunicazioni.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Resi S.P.A	Exact match	Rome, ItalyHQ recorded Sep 19, 2026	51-200	48 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	LA Telefonica S.R.L	Exact match	Rome, ItalyHQ recorded Sep 19, 2026	51-200	45 contacts →
	Exact match “Costituita nel 1974, La Telefonica, da oltre 30 anni, fornisce sistemi di telecomunicazione apprezzati per qualità, affidabilità e performance.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Inpowergroup Scpa	Exact match	Naples, ItalyHQ recorded Sep 19, 2026	51-200	42 contacts →
	Exact match “InPowerGroup è un consorzio italiano nato nel 2009 che opera con una altissima specializzazione nel settore delle Infrastrutture e Impianti ad Alta Tecnologia.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Sinora SRL	Exact match	Riccione, ItalyHQ recorded Sep 19, 2026	51-200	40 contacts →
	Exact match “A player in the market of telecommunications, Sinora is a truly Italian company resulting from the merger of Eurocom Telecomunicazioni and Saitel Telecomunicazioni, which have…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Novasistemi	Exact match	Monteforte Irpino, ItalyHQ recorded Sep 19, 2026	201-500	35 contacts →
	Exact match “Novasistemi nasce all’inizio degli anni ’90 come azienda di impiantistica elettrica nei settori dell’energia civile e industriale.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	polomarconi.it	Exact match	Osio Sotto, ItalyHQ recorded Sep 19, 2026	51-200	34 contacts →
	Exact match “POLOMARCONI.IT SPA is a leading company in Critical Communications.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	NTS Italy	Exact match	Bolzano, ItalyHQ recorded Sep 19, 2026	501-1,000	30 contacts →
	Exact match “Siamo un’azienda che crea valore sostenibile per clienti e partner grazie alla massima qualità, a soluzioni innovative e a una forte attenzione alla sicurezza.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Gruppo Mediatel	Exact match	Florence, ItalyHQ recorded Sep 19, 2026	51-200	29 contacts →
	Exact match “Gruppo Mediatel è un punto di riferimento consolidato nell'ambito della Consulenza Aziendale.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “telecom engineering contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 542 telecom engineering contractors based in Italy

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Telecom engineering contractors based in Italy at a glance

As of Sep 19, 2026

36.8%Verified-email coverage

20.7Average contacts per company

11-50Median size (employees)

8.7%Largest-city concentration · Rome

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

136

11-50

275

51-200

101

201-500

501-1,000

1,001-5,000

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 542 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Italy whose business descriptions match “telecom engineering contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,143 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “telecom engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom engineering contractors are there based in Italy?

RevenueBase identified 542 company matches for telecom engineering contractors associated with Italy as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sielte SPA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom engineering contractors?

Rome leads with 47 company records, followed by Milan (25) and Naples (14).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,143 professional contacts with verified work emails tracked across these 542 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 SmartSearch, 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.