Company lists · Data refreshed September 2026

Top 25 Renewable energy maintenance companies based in Italy

Name: Renewable energy maintenance 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 387 companies tracked

RevenueBase identified 387 renewable energy maintenance companies headquartered in Italy as of September 2026 and tracks 2,987 professional contacts across them, including 788 with verified work emails. Roma is the largest hub.

This list covers renewable energy maintenance 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

387Companies

2,987Contacts tracked

788Verified emails

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The 25 largest renewable energy maintenance companies based in Italy

Ranked by team size

Top 25 of 387 renewable energy maintenance 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 renewable energy maintenance 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	Stern Energy	Partial evidence	Parma, ItalyHQ checked Sep 17, 2026	201-500	205 contacts →
	Partial evidence “Stern Energy, founded in 2008, is an Italy-based company specialized in technical services for photovoltaic plants and BESS systems.” Source: RevenueBase Database · checked Sep 17, 2026
2	Algowatt	Strong evidence	Milano, ItalyHQ checked Sep 17, 2026	n/a	137 contacts →
	Strong evidence “TerniEnergia is active in the energies from renewable sources business, particularly in the photovoltaic segment, where it operates as a system integrator.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tozzi Green S.P.A	Partial evidence	Mezzano, ItalyHQ checked Sep 17, 2026	201-500	132 contacts →
	Partial evidence “Tozzi Green è una società specializzata in servizi e progetti per lo sviluppo d’impianti e per la generazione di energia da fonti rinnovabili.” Source: RevenueBase Database · checked Sep 17, 2026
4	Ivpc Group	Partial evidence	Avellino, ItalyHQ checked Sep 17, 2026	201-500	110 contacts →
	Partial evidence “Uno dei principali gruppi a livello nazionale nel settore delle energie rinnovabili.” Source: RevenueBase Database · checked Sep 17, 2026
5	Esapro	Strong evidence	Milano, ItalyHQ checked Sep 17, 2026	51-200	98 contacts →
	Strong evidence “We have more than 10 years’ experience in designing, building and managing renewable power plant and an enviable track record in the maintenance, revamping and 24/7 surveillance…” Source: RevenueBase Database · checked Sep 17, 2026
6	Delos Power	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “Ogni giorno, lavoriamo per generare un impatto positivo sull'ambiente e sulla società.” Source: RevenueBase Database · checked Sep 17, 2026
7	Unoenergy Green Solutions SPA	Indirect evidence	Cascina, ItalyHQ checked Sep 17, 2026	201-500	63 contacts →
	Indirect evidence “Unoenergy Green Solutions è una società del Gruppo Unoenergy che opera su tutto il territorio nazionale attraverso la vendita e l’installazione di sistemi per l’efficientamento…” Source: RevenueBase Database · checked Sep 17, 2026
8	Energy Italy	Partial evidence	Costermano Sul Garda, ItalyHQ checked Sep 17, 2026	11-50	59 contacts →
	Partial evidence “Energy Italy SpA, azienda parte del gruppo Energy Holding, dal 2012 è tra le realtà più innovative nel settore delle energie rinnovabili e del risparmio energetico.” Source: RevenueBase Database · checked Sep 17, 2026
9	Undo Group	Partial evidence	Rome, ItalyHQ checked Sep 17, 2026	51-200	55 contacts →
	Partial evidence “We produce sustainable energy by covering the entire supply chain from site scouting to the construction and operational management of our power plants.” Source: RevenueBase Database · checked Sep 17, 2026
10	Oempv S.R.L	Indirect evidence	Rovigo, ItalyHQ checked Sep 17, 2026	51-200	43 contacts →
	Indirect evidence “OEMpv nasce nel 2010 dall’esigenza sempre maggiore di fare manutenzione agli impianti fotovoltaici di media e grande dimensione.” Source: RevenueBase Database · checked Sep 17, 2026
11	BFP Service	Indirect evidence	Modugno, ItalyHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “BFP Service is the EPC and O&M company of the BFP group.” Source: RevenueBase Database · checked Sep 17, 2026
12	Aliseo Group SRL	Strong evidence	Empoli, ItalyHQ checked Sep 17, 2026	11-50	39 contacts →
	Strong evidence “WORK FOR MAXIMISING YOUR PERFORMANCE Thanks to technology and our values, we work to optimize the performance of facilities renewable energy.” Source: RevenueBase Database · checked Sep 17, 2026
13	Gruppo Fera	Partial evidence	Milan, ItalyHQ checked Sep 17, 2026	11-50	34 contacts →
	Partial evidence “FERA SRL – Fabbrica Energie Rinnovabili Alternative opera nel settore delle energie rinnovabili.” Source: RevenueBase Database · checked Sep 17, 2026
14	Ferplant Srl-Gruppo Mondopower	Indirect evidence	Torino, ItalyHQ checked Sep 17, 2026	11-50	23 contacts →
	Indirect evidence “Ferplant srl, ramo operativo del gruppo MondoPower,opera attraverso un gruppo composto da ingegneri esperti, preparati e specializzati in diversi settori.” Source: RevenueBase Database · checked Sep 17, 2026
15	Secsun SRL	Indirect evidence	Altamura, ItalyHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Secsun Srl, realtà giovane e dinamica del Sud Italia, sfruttando le crescenti potenzialità del fiorente mercato fotovoltaico ha acquisito un innovativo e sperimentale know how…” Source: RevenueBase Database · checked Sep 17, 2026
16	Efficace Impianti	Indirect evidence	Roma, ItalyHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence “Leader in the areas of management, repair and installation of technological systems, committed to offering advanced solutions and high quality services.” Source: RevenueBase Database · checked Sep 17, 2026
17	Seci Energia	Partial evidence	Zola Predosa, ItalyHQ checked Sep 17, 2026	51-200	19 contacts →
	Partial evidence “Established in 2006, SECI Energia is the sub-holding company of the Maccaferri Industrial Group in which are concentrated shareholdings of new companies engaged in the energy…” Source: RevenueBase Database · checked Sep 17, 2026
18	Half Bridge Automation	Partial evidence	Lecce, ItalyHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “Siamo un’azienda nata nel 2020 dall’incontro di esperienze professionali decennali nel campi delle energie rinnovabili e dell’automazione industriale.” Source: RevenueBase Database · checked Sep 17, 2026
19	Renexia SPA	Strong evidence	Chieti, ItalyHQ checked Sep 17, 2026	11-50	17 contacts →
	Strong evidence “Renewable energy: design, construction, and management of large photovoltaic and wind” Source: RevenueBase Database · checked Sep 17, 2026
20	F.Lli Franchini SRL	Indirect evidence	Rimini, ItalyHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “F.lli Franchini nasce con il settore degli impianti elettrici civili.” Source: RevenueBase Database · checked Sep 17, 2026
21	F.Lli Bari S.R.L	Partial evidence	Sarego, ItalyHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Officina elettromeccanica di riparazioni e manutenzione motori, pompe, gruppi elettrogeni, trasformatori ed altre macchine elettriche per la produzione di energia, macchinari per…” Source: RevenueBase Database · checked Sep 17, 2026
22	Sinergies Group	Partial evidence	Milan, ItalyHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Siamo un’azienda energetica che opera lungo la filiera della produzione e dello stoccaggio di energia da fonte rinnovabile per guidare le persone, le imprese e le comunità verso…” Source: RevenueBase Database · checked Sep 17, 2026
23	Energie Nuove SRL	Partial evidence	Marotta, ItalyHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “ENERGIE NUOVE SRL è una società che opera nel settore delle energie rinnovabili, come EPC Contractor e servizi di management, manutenzione e progettazione.” Source: RevenueBase Database · checked Sep 17, 2026
24	Ermes S.P.A	Partial evidence	Roma, ItalyHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “ERMES SpA opera nella produzione di Energia Elettrica da Fonte Rinnovabile attraverso il Development - EPCM - O&M service.” Source: RevenueBase Database · checked Sep 17, 2026
25	Sima Global Service	Indirect evidence	Brusciano, ItalyHQ checked Sep 17, 2026	51-200	13 contacts →
	Indirect evidence “La Sima Global Service è un' azienda giovane con un managment che vanta un' esperienza pluridecennale sul mercato dell'impiantistica industriale che è in grado di fornire la…” 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: renewable energy maintenance 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 renewable energy maintenance companies.
Partial evidence: Its own public description names part of renewable energy maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy maintenance 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 387 renewable energy maintenance companies based in Italy

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Renewable energy maintenance companies based in Italy at a glance

As of Sep 17, 2026

26.4%Verified-email coverage

7.7Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · Roma

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

166

11-50

180

51-200

201-500

501-1,000

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 387 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 renewable energy maintenance 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 “renewable energy maintenance 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 renewable energy maintenance 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 renewable energy maintenance 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, 788 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 renewable energy maintenance 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 renewable energy maintenance companies are there based in Italy?

RevenueBase identified 387 renewable energy maintenance 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?

Stern Energy, headquartered in Parma, tops this list with the largest team on record.

Which city has the most renewable energy maintenance companies?

Roma leads with 13 headquartered companies, followed by Milano (9) and Torino (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 788 verified decision-maker contacts tracked across these 387 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.