Company lists · Data refreshed September 2026

Top 17 Blue energy companies based in Italy

RevenueBase identified 52 blue energy companies headquartered in Italy as of September 2026 and tracks 1,301 professional contacts across them, including 613 with verified work emails. Milan is the largest hub.

This list covers blue 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 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
52Companies
1,301Contacts tracked
613Verified emails
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The 17 largest blue energy companies based in Italy

Ranked by team size
Top 17 of 52 blue energy 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 blue 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMilan, ItalyHQ checked Sep 16, 2026201-500608 contacts →

Indirect evidence

“Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceRoncadelle (bs), ItalyHQ checked Sep 16, 202651-20099 contacts →

Partial evidence

“VIVI energia è tra i principali operatori indipendenti italiani nel mercato dell’energia.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceFoligno, ItalyHQ checked Sep 16, 202651-20052 contacts →

Partial evidence

energia s.p.a, Società con esperienza decennale nel mercato energetico è presente in modo capillare su tutto il territorio nazionale.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceMilano, ItalyHQ checked Sep 16, 202651-20047 contacts →

Indirect evidence

“NatPower is an independent company founded in 2019, led by accomplished managers with more than 25 years of expertise in the global green industry.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidencePontedera, ItalyHQ checked Sep 16, 202611-5040 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 16, 2026
6Partial evidenceZumpano, ItalyHQ checked Sep 16, 202651-20031 contacts →

Partial evidence

“Omnia Energia è la più importante Energy Company del Sud Italia specializzata nella vendita di energia elettrica, impianti fotovoltaici e servizi di efficienza energetica.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5029 contacts →

Partial evidence

“ReFeel is an independent, integrated network of energy companies, characterised by a “glocal” strategy (a global vision with a local approach) that is clear and transparent: green…”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5029 contacts →

Partial evidence

“Utilità, l’energia che serve alle imprese.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidencePadova, ItalyHQ checked Sep 16, 202611-5018 contacts →

Partial evidence

“La nostra energia, al tuo fianco.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceRome, ItalyHQ checked Sep 16, 202651-20015 contacts →

Indirect evidence

“Nata nel 2010, OEnergy è un’azienda privata, solida e patrimonializzata, che opera nel mercato libero di luce e gas, fornendo i propri servizi su tutto il territorio nazionale.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceCesena, ItalyHQ checked Sep 16, 202611-5014 contacts →

Partial evidence

“Greenius è una giovane start up nata da un’idea di un gruppo di professionisti del settore energetico con un’obbiettivo comune: fornire energia attraverso prodotti e servizi…”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceSalò, ItalyHQ checked Sep 16, 202611-5010 contacts →

Partial evidence

“Siamo nati nel 2002 per impulso di capitale pubblico e privato, con l’obiettivo di fornire alle imprese del nostro territorio l’energia elettrica prodotta da fonte rinnovabile dai…”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceFlorence, ItalyHQ checked Sep 16, 20261-1010 contacts →

Partial evidence

“arnoenergia Arno Energia accende le idee e scalda gli spazi.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceGrosseto, ItalyHQ checked Sep 16, 20261-105 contacts →

Partial evidence

“Tech4Tomorrow presenta prodotti competitivi nel settore del risparmio energetico, mettendo a servizio delle persone l’innovazione tecnologica.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidencePortogruaro, ItalyHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-501 contacts →

Partial evidence

“We are an energy company investing across all renewable sources: biomethane, wind, solar and green hydrogen.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceWengen, ItalyHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“IES Energy is an energy company based in La Val, Italy (Zona Artejanala 7, I - 39030).”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 17 of 52 blue energy companies based in Italy

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Blue energy companies based in Italy at a glance

As of Sep 16, 2026
47.1%Verified-email coverage
25.0Average contacts per company
11-50Median size (employees)
7.7%Largest-city concentration · Milan
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
23
51-200
8
201-500
2
501-1,000
2

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 52 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 blue 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 “blue 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 blue 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 blue 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, 613 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 blue 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 blue energy companies are there based in Italy?

RevenueBase identified 52 blue 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?

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

Which city has the most blue energy companies?

Milan leads with 4 headquartered companies, followed by Milano (4) and Cesena (2).

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 613 verified decision-maker contacts tracked across these 52 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.