Company lists · Data refreshed September 2026
Top 25 Geothermal companies based in Italy
RevenueBase identified 277 geothermal companies headquartered in Italy as of September 2026 and tracks 7,678 professional contacts across them, including 2,174 with verified work emails. Milan is the largest hub.
This list covers geothermal 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 15, 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.
The 25 largest geothermal companies based in Italy
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,251 contacts → | ||||
Indirect evidence “We are the Enel Group company dedicated to the development and management of renewable energy generation worldwide.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 93 contacts → | ||||
Indirect evidence “PEF SpA nasce a Firenze nel 2006, iniziando ad operare nel settore delle energie rinnovabili, con la commercializzazione su tutto il territorio nazionale di impianti fotovoltaici…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 83 contacts → | ||||
Indirect evidence “Gas, acqua, aria sono da sempre i nostri campi d’intervento a cui affianchiamo la quotidiana sfida dello sviluppo e sfruttamento delle nuove fonti rinnovabili di energia: recupero…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 53 contacts → | ||||
Indirect evidence “Inergia was founded in 2003 with the strategic diversification of the Santarelli group, a leader in Italy’s real estate industry.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 41 contacts → | ||||
Indirect evidence “Pergemine è Drilling Contractor.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 37 contacts → | ||||
Indirect evidence “Spinti dalla passione per le energie rinnovabili e dal rispetto per l'ambiente, Gianluca e Massimo Masiero fondano la società Templari nel 2006 specializzandosi in diversi settori…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 contacts → | ||||
Indirect evidence “Renergetica was founded in 2008 with the aim of becoming one of the main professional developers of renewables energy projects and hybrid grids.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 contacts → | ||||
Indirect evidence “MARCOPOLO ENVIRONMENTAL GROUP is an international company operating in the environmental field, with a large number of patents and production processes, for the "sustainable and…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Indirect evidence “E-Way Finance è una società di sviluppo, realizzazione e gestione di impianti di energie rinnovabili.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 contacts → | ||||
Indirect evidence “InfraLab is a company that integrates skills and experience in the renewable energy sector, gained over more than twenty years.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 24 contacts → | ||||
Strong evidence “NSC is a leading global provider of specialized services for the Oil & Gas and Geothermal Industry.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 23 contacts → | ||||
Indirect evidence “Floramiata, leader in the production of indoor plants, was founded almost 40 years ago, in an area where green is part of the dreamy landscape: Piancastagnaio, a small Sienese…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 contacts → | ||||
Strong evidence “Steam is an internationally-recognized advisory firm for geothermal development.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Indirect 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 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Indirect evidence “Our story begins in 1936 and it’s still going on for us, four generations later, as a leading company in the global market for rentals and sales of industrial thermal power plants.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Indirect evidence “Infrastrutture presieduta da Pier Francesco Rimbotti, è la holding di un Gruppo che oltre 40 anni opera come investitore e consulente nello sviluppo e realizzazione di progetti…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect 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 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Indirect evidence “Lio Energy is a renewable energy company focused on developing, investing in, and delivering high-value clean power solutions.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 contacts → | ||||
Indirect evidence “Desamo azienda nasce nel 2014 a Padova dall’unione di due professionisti del marketing e della green economy.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 contacts → | ||||
Indirect evidence “GEPlan Consulting offers advanced technical expertise and cutting-edge solutions in the energy sector.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Indirect evidence “Gaudino S.r.l.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 contacts → | ||||
Indirect evidence “FRI-EL GEO si è specializzata nella ricerca e sviluppo, progettazione e costruzione di centrali geotermoelettriche e la vendita e distribuzione di energia elettrica e calore da…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “SINIM è una società che svolge attività nel campo delle centrali per la produzione di energia.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 contacts → | ||||
Indirect evidence “Renewable Dispatching è una società di trading di energia elettrica prodotta da impianti alimentati da fonte rinnovabile e cogenerativa che utilizza sistemi innovativi e algoritmi…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
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: geothermal 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 geothermal companies.
- Partial evidence
- Its own public description names part of geothermal companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name geothermal 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 277 geothermal companies based in Italy
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,174 reachable decision-makers.
Free signup · no credit card
Geothermal companies based in Italy at a glance
As of Sep 15, 2026Companies by employee count
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 277 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 geothermal 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 “geothermal 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 geothermal 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 geothermal 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, 2,174 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 15, 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 geothermal 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 geothermal companies are there based in Italy?
RevenueBase identified 277 geothermal 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?
Enel Green Power, headquartered in Roma, tops this list with the largest team on record.
Which city has the most geothermal companies?
Milan leads with 9 headquartered companies, followed by Milano Mi (7) and Torino (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 2,174 verified decision-maker contacts tracked across these 277 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 15, 2026.
Ready to reach these companies? Verified emails and direct dials for all 277 geothermal companies based in Italy. Start with a free account, no credit card.
Download this list →Related lists
Geothermal companies by geography
- Geothermal companies based in Argentina
- Geothermal companies based in Australia
- Geothermal companies based in Austria
- Geothermal companies based in Belgium
- Geothermal companies based in Brazil
- Geothermal companies based in Canada
- Geothermal companies based in Chile
- Geothermal companies based in Colombia
- Geothermal companies based in Denmark
- Geothermal companies based in Finland
- Geothermal companies based in France
- Geothermal companies based in Germany
Browse the directory
Browse: Companies home · All Italy lists · All Geothermal companies lists · New lists
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.