Company lists · Data refreshed September 2026

Top 25 Integrated energy companies based in Italy

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 172 companies tracked

RevenueBase identified 172 integrated energy companies headquartered in Italy as of September 2026 and tracks 41,018 professional contacts across them, including 15,322 with verified work emails. Milano Mi is the largest hub.

This list covers integrated energy 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 17, 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 17, 2026 86% judged on-target in blind review

172Companies

41,018Contacts tracked

15,322Verified emails

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The 25 largest integrated energy companies based in Italy

Ranked by team size

Top 25 of 172 integrated energy companies based in Italy, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to integrated energy 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	ENI	Strong evidence	Rome, ItalyHQ checked Sep 17, 2026	10001+	20,038 contacts →
	Strong evidence “Eni is an integrated energy company, founded in 1953, with 31.376 employees in 69 countries around the world, including Algeria, Angola, Mozambique, Mexico, Indonesia and Italy.” Source: RevenueBase Database · checked Sep 17, 2026
2	Enel Group	Strong evidence	Rome, ItalyHQ checked Sep 17, 2026	10001+	15,726 contacts →
	Strong 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 17, 2026
3	Optima Italia S.P.A	Partial evidence	Napoli, ItalyHQ checked Sep 17, 2026	201-500	872 contacts →
	Partial evidence “L'energia di un gruppo giovane che lavora ogni giorno con la voglia di affrontare nuove sfide, con la consapevolezza che osservare la realtà da punti di vista differenti richiede…” Source: RevenueBase Database · checked Sep 17, 2026
4	Sorgenia	Partial evidence	Milan, ItalyHQ checked Sep 17, 2026	201-500	608 contacts →
	Partial evidence “Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Source: RevenueBase Database · checked Sep 17, 2026
5	SARAS	Strong evidence	Milan, ItalyHQ checked Sep 17, 2026	1,001-5,000	587 contacts →
	Strong 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 17, 2026
6	Unoenergy SPA	Partial evidence	Milano, ItalyHQ checked Sep 17, 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 17, 2026
7	Union GAS E Luce	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	51-200	110 contacts →
	Indirect evidence “Union S.p.A.” Source: RevenueBase Database · checked Sep 17, 2026
8	Chiurlo	Partial evidence	Udine, ItalyHQ checked Sep 17, 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 17, 2026
9	Canarbino SPA	Partial evidence	Sarzana, ItalyHQ checked Sep 17, 2026	501-1,000	80 contacts →
	Partial evidence “Il Gruppo Canarbino è uno dei principali operatori italiani nei settori Energy e TLC, con oltre 1,5 milioni di clienti, più di 80 sedi sul territorio nazionale e un team di oltre…” Source: RevenueBase Database · checked Sep 17, 2026
10	Futurenergy Rinnovabile S.R.L	Partial evidence	Genova, ItalyHQ checked Sep 17, 2026	51-200	63 contacts →
	Partial evidence “Futurenergy è un'azienda di fornitura di luce e gas, ed un punto di riferimento nel settore energetico.” Source: RevenueBase Database · checked Sep 17, 2026
11	Gritti Energia	Partial evidence	San Martino Buon Albergo, ItalyHQ checked Sep 17, 2026	51-200	57 contacts →
	Partial evidence “Gritti Energia dal 1959 ha fatto della fornitura di energia alle famiglie e alle imprese italiane il proprio impegno imprenditoriale.” Source: RevenueBase Database · checked Sep 17, 2026
12	MET Energia Italia	Partial evidence	Milano, ItalyHQ checked Sep 17, 2026	11-50	56 contacts →
	Partial evidence “MET Energia Italia, parte del gruppo svizzero MET Group, è attiva dal 2017 nella fornitura di gas ed elettricità a clienti industriali, commerciali e residenziali.” Source: RevenueBase Database · checked Sep 17, 2026
13	Metamer	Partial evidence	San Salvo, ItalyHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “Metamer nasce nel 2003 dalla scissione del ramo di azienda dell’allora “Metanizzazione Meridionale” srl con l’idea di investire nel Libero Mercato Energetico con forniture rivolte…” Source: RevenueBase Database · checked Sep 17, 2026
14	Ludoil Energy	Strong evidence	Milan, ItalyHQ checked Sep 17, 2026	201-500	52 contacts →
	Strong evidence “We are an integrated energy company with expertise in the exploration, production, storage, logistics and marketing of oil products.” Source: RevenueBase Database · checked Sep 17, 2026
15	Augusta Ratio SPA	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	11-50	50 contacts →
	Indirect evidence “Augusta Ratio S.p.A.” Source: RevenueBase Database · checked Sep 17, 2026
16	Costantin	Partial evidence	Santa Margherita D'adige, ItalyHQ checked Sep 17, 2026	51-200	45 contacts →
	Partial evidence “COSTANTIN SPA is an Oil and Energy company located in Via Canareggio 1823/1, Santa Margherita D Adige, Veneto, Italy.” Source: RevenueBase Database · checked Sep 17, 2026
17	Heracomm - Agenzie	Partial evidence	Imola, ItalyHQ checked Sep 17, 2026	201-500	43 contacts →
	Partial evidence “Hera Comm è la società di vendita di energia elettrica e gas naturale del Gruppo Hera che ha sede a Bologna.” Source: RevenueBase Database · checked Sep 17, 2026
18	Esserenergia S.P.A	Indirect evidence	Pontedera, ItalyHQ checked Sep 17, 2026	11-50	40 contacts →
	Indirect evidence “Esserenergia S.p.A è un’azienda giovane e piena di entusiasmo che fa parte di un gruppo industriale solido e di successo.” Source: RevenueBase Database · checked Sep 17, 2026
19	Gesam GAS & Luce	Partial evidence	Lucca, ItalyHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “Ti diamo il benvenuto nel mondo di GESAM Gas & Luce, da cinquant’anni, prima con Ge.SA.AM, poi con GESAM S.p.A.(attuale GESAM Reti S.p.A.), il principale brand energetico della…” Source: RevenueBase Database · checked Sep 17, 2026
20	CGI Holding	Indirect evidence	Alseno, ItalyHQ checked Sep 17, 2026	201-500	19 contacts →
	Indirect evidence “Parte negli anni ’70 l’avventura imprenditoriale di Gianfranco Curti che con la costituzione di Metanfriuli è stato uno dei pionieri nella progettazione, realizzazione e gestione…” Source: RevenueBase Database · checked Sep 17, 2026
21	Eredi Campidonico SPA	Partial evidence	Grugliasco, ItalyHQ checked Sep 17, 2026	51-200	19 contacts →
	Partial evidence “Commercializzazione di prodotti petroliferi, tra cui: gasolio autotrazione e riscaldamento Vendita di gas ed energia elettrica da fonti rinnovabili Servizi energia e…” Source: RevenueBase Database · checked Sep 17, 2026
22	Polisenergia S.R.L	Partial evidence	Milano, ItalyHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “PolisEnergia è una società di vendita di energia elettrica e gas naturale che opera nel mercato dal 2012 ci impegniamo a fornire soluzioni energetiche affidabili, convenienti e…” Source: RevenueBase Database · checked Sep 17, 2026
23	Società Energia Italia	Partial evidence	Andria, ItalyHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Società Energia Italia è un marchio del Gruppo CIP Energia S.r.l, una realtà con oltre 40 anni di esperienza nel settore energetico nazionale, attiva nella vendita di gas…” Source: RevenueBase Database · checked Sep 17, 2026
24	Onda PIÙ	Partial evidence	Siracusa, ItalyHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Onda Più è il tuo operatore di fiducia per la fornitura di energia elettrica e gas naturale Vicini alle famiglie e alle imprese creiamo valore aggiunto per la comunità siciliana…” Source: RevenueBase Database · checked Sep 17, 2026
25	Gruppo Camer	Partial evidence	Galatina, ItalyHQ checked Sep 17, 2026	51-200	15 contacts →
	Partial evidence “Il gruppo CAMER è tra i protagonisti dei mercati energetici in Puglia, attivo dal 1971 nella commercializzazione di prodotti oil, è oggi una realtà nel mercato elettrico e del gas…” Source: RevenueBase Database · checked Sep 17, 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: integrated energy 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 integrated energy companies.
Partial evidence: Its own public description names part of integrated energy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name integrated energy 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 172 integrated energy companies based in Italy

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Integrated energy companies based in Italy at a glance

As of Sep 17, 2026

37.4%Verified-email coverage

238.5Average contacts per company

11-50Median size (employees)

5.2%Largest-city concentration · Milano Mi

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 172 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 integrated energy 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 “integrated energy 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 integrated energy 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 integrated energy 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, 15,322 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 17, 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 integrated energy 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 integrated energy companies are there based in Italy?

RevenueBase identified 172 integrated energy 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?

ENI, headquartered in Italy, tops this list with the largest team on record.

Which city has the most integrated energy companies?

Milano Mi leads with 9 headquartered companies, followed by Roma (9) and Milan (8).

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 15,322 verified decision-maker contacts tracked across these 172 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 17, 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.