Company lists · Data refreshed September 2026

Top 25 Energy infrastructure firms based in Italy

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 223 companies tracked

RevenueBase identified 223 energy infrastructure firms headquartered in Italy as of September 2026 and tracks 60,402 professional contacts across them, including 19,926 with verified work emails. Roma is the largest hub.

This list covers energy infrastructure firms 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

223Companies

60,402Contacts tracked

19,926Verified emails

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The 25 largest energy infrastructure firms based in Italy

Ranked by team size

Top 25 of 223 energy infrastructure firms 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 energy infrastructure firms: 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	Saipem	Strong evidence	Milan, ItalyHQ checked Sep 16, 2026	10001+	34,095 contacts →
	Strong evidence “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Source: RevenueBase Database · checked Sep 16, 2026
2	Enel Group	Partial evidence	Rome, ItalyHQ checked Sep 16, 2026	10001+	15,726 contacts →
	Partial evidence “We are a multinational company reshaping the future of energy and one of the world’s leading integrated electricity operators.” Source: RevenueBase Database · checked Sep 16, 2026
3	Ansaldo Energia	Partial evidence	Genova, ItalyHQ checked Sep 16, 2026	1,001-5,000	2,554 contacts →
	Partial evidence “Ansaldo Energia Group is an international leader in the power generation industry and a key player in the energy transition.” Source: RevenueBase Database · checked Sep 16, 2026
4	SICIM	Partial evidence	Busseto, ItalyHQ checked Sep 16, 2026	10001+	2,404 contacts →
	Partial evidence “SICIM is a leading Worldwide EPC Contractor since 1962, offering all kinds of services related to the production, treatment and transportation of traditional energy sources and…” Source: RevenueBase Database · checked Sep 16, 2026
5	Circet Italia S.P.A	Partial evidence	San Giovanni Teatino, ItalyHQ checked Sep 16, 2026	1,001-5,000	668 contacts →
	Partial 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
6	SARAS	Partial evidence	Milan, ItalyHQ checked Sep 16, 2026	1,001-5,000	587 contacts →
	Partial evidence “Saras is a long-established Italian industrial company and a leading player in the energy sector, now fully integrated into Vitol, a global leader in energy and commodities…” Source: RevenueBase Database · checked Sep 16, 2026
7	Unoenergy SPA	Partial evidence	Milano, ItalyHQ checked Sep 16, 2026	501-1,000	377 contacts →
	Partial evidence “Il Gruppo Unoenergy da oltre 20 anni è uno dei primi operatori - a capitale interamente privato - per la fornitura di gas naturale, energia elettrica e servizi di efficientamento…” Source: RevenueBase Database · checked Sep 16, 2026
8	Geko S.P.A	Partial evidence	Roma, ItalyHQ checked Sep 16, 2026	201-500	322 contacts →
	Partial evidence “GEKO opera in tutte le fasi strategiche della filiera energetica, dallo sviluppo, realizzazione, gestione e service di impianti di generazione elettrica alla vendita di energia e…” Source: RevenueBase Database · checked Sep 16, 2026
9	Cebat SPA	Indirect evidence	Rome, ItalyHQ checked Sep 16, 2026	501-1,000	300 contacts →
	Indirect evidence “CEBAT SpA is a leader in utility networks’ development and services.” Source: RevenueBase Database · checked Sep 16, 2026
10	STE Energy	Partial evidence	Padova, ItalyHQ checked Sep 16, 2026	51-200	194 contacts →
	Partial evidence “Since June 2025, STE Energy has been acquired by, becoming part of the world.” Source: RevenueBase Database · checked Sep 16, 2026
11	Fores Engineering	Indirect evidence	Forli, ItalyHQ checked Sep 16, 2026	51-200	172 contacts →
	Indirect evidence “Fores Engineering is an Italian company, part of the Rosetti Marino Group, specialized in the Engineering, Integration and Construction of turnkey systems for offshore and onshore…” Source: RevenueBase Database · checked Sep 16, 2026
12	TSG Italia	Partial evidence	Asti, ItalyHQ checked Sep 16, 2026	501-1,000	128 contacts →
	Partial evidence “TSG è il leader europeo nei servizi tecnici per la mobilità e la distribuzione energetica, impegnato a rendere l’energia più sostenibile, efficiente e sicura.” Source: RevenueBase Database · checked Sep 16, 2026
13	Conexus S.P.A	Indirect evidence	Roma, ItalyHQ checked Sep 16, 2026	501-1,000	109 contacts →
	Indirect evidence “Conexus is a national company that designs, builds and maintains electricity distribution networks, making a tangible contribution to the modernisation of the country's strategic…” Source: RevenueBase Database · checked Sep 16, 2026
14	Chiurlo	Partial evidence	Udine, ItalyHQ checked Sep 16, 2026	201-500	106 contacts →
	Partial evidence “IERI da 125 anni operiamo in FVG nel campo delle energie; da impresa familiare a impresa a forte connotazione manageriale, salvaguardando quel rapporto viscerale con il nostro…” Source: RevenueBase Database · checked Sep 16, 2026
15	BFP	Indirect evidence	Modugno, ItalyHQ checked Sep 16, 2026	11-50	95 contacts →
	Indirect evidence “BFP Group is an engineering & consultancy firm with international offices, applying ten years of experience to offer services worldwide across various sectors, including civil and…” Source: RevenueBase Database · checked Sep 16, 2026
16	Almacis SRL	Indirect evidence	Chieti Scalo, ItalyHQ checked Sep 16, 2026	201-500	93 contacts →
	Indirect evidence “L'Almacis trae origine dall'impresa Marramiero che, a partire dagli anni '50, ha avviato la realizzazione di reti e di impianti acquedottistici, di irrigazione e fognari, oltre…” Source: RevenueBase Database · checked Sep 16, 2026
17	Comis S.R.L	Indirect evidence	Pesaro, ItalyHQ checked Sep 16, 2026	51-200	85 contacts →
	Indirect evidence “Creata nel 1994, Comis s.r.l.” Source: RevenueBase Database · checked Sep 16, 2026
18	Gala S.P.A	Partial evidence	Rome, ItalyHQ checked Sep 16, 2026	11-50	61 contacts →
	Partial evidence “GALA is a private group, leading within the energy sector, with Italian roots and strongly oriented to internationalization Following the market liberalization, GALA’s main…” Source: RevenueBase Database · checked Sep 16, 2026
19	TEN Project	Partial evidence	San Martino Sannita, ItalyHQ checked Sep 16, 2026	11-50	52 contacts →
	Partial evidence “L’ambito principale di attività riguarda la progettazione, la realizzazione e la gestione di infrastrutture elettriche e di impianti di produzione di energia da fonti rinnovabili…” Source: RevenueBase Database · checked Sep 16, 2026
20	Green Horse Advisory	Partial evidence	Milan, ItalyHQ checked Sep 16, 2026	11-50	45 contacts →
	Partial evidence “Green Horse, acronym for GREEN HORizon for a Sustainable Economy, is an advisory project dedicated exclusively to the energy transition industry with particular attention to…” Source: RevenueBase Database · checked Sep 16, 2026
21	SIMET	Partial evidence	Albignasego, ItalyHQ checked Sep 16, 2026	51-200	40 contacts →
	Partial evidence “SIMET è attiva dal 1950 nella realizzazione e manutenzione di infrastrutture energetiche e oggi fa parte del Gruppo Enercom, una delle maggiori realtà italiane private del settore…” Source: RevenueBase Database · checked Sep 16, 2026
22	Electrade	Partial evidence	Milano, ItalyHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “Electrade is a global player in the energy sector with 70 employees, a turnover of €995M and €53.6M in net assets.” Source: RevenueBase Database · checked Sep 16, 2026
23	V-Reti	Partial evidence	Vicenza, ItalyHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “V-Reti è la società del Gruppo AGSM AIM che si occupa della distribuzione e misura del gas e dell'energia elettrica nelle città di Verona e Vicenza e in altri comuni del Nordest…” Source: RevenueBase Database · checked Sep 16, 2026
24	Ambrogio Moro S.P.A	Partial evidence	Meda, ItalyHQ checked Sep 16, 2026	51-200	33 contacts →
	Partial evidence “Il gruppo AMBROGIO MORO è una realtà presente da oltre 70 anni nel campo dell’ ENERGIA.” Source: RevenueBase Database · checked Sep 16, 2026
25	Gopower GAS & Light	Partial evidence	Livorno, ItalyHQ checked Sep 16, 2026	n/a	33 contacts →
	Partial evidence “L'Azienda Gopower, società toscana accreditata presso il MSE, opera nel settore energetico nazionale come fornitore di gas naturale ed energia elettrica, coprendo tutte le fasi…” 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: energy infrastructure firms. 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 energy infrastructure firms.
Partial evidence: Its own public description names part of energy infrastructure firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure firms. 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 223 energy infrastructure firms based in Italy

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Energy infrastructure firms based in Italy at a glance

As of Sep 16, 2026

33.0%Verified-email coverage

270.9Average contacts per company

11-50Median size (employees)

5.4%Largest-city concentration · Roma

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

112

51-200

201-500

501-1,000

1,001-5,000

10001+

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 223 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 energy infrastructure firms, 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 “energy infrastructure firms”. 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 energy infrastructure firms), 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 energy infrastructure firms, 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, 19,926 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 energy infrastructure firms, 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 energy infrastructure firms are there based in Italy?

RevenueBase identified 223 energy infrastructure firms 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?

Saipem, headquartered in Milan, tops this list with the largest team on record.

Which city has the most energy infrastructure firms?

Roma leads with 12 headquartered companies, followed by Milan (10) and Milano (7).

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 19,926 verified decision-maker contacts tracked across these 223 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.