Company lists · Data refreshed October 2026

Top 25 Geothermal contractors based in Italy

Name: Geothermal contractors based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 13, 2026 931 companies tracked

RevenueBase identified 931 company matches for geothermal contractors associated with Italy as of October 2026 and tracks 5,206 professional contacts across them, including 941 with verified work emails. Rome is the largest hub.

This list covers company matches for geothermal contractors associated with Italy, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 13, 2026 How this list was built

931Companies

5,206Contacts tracked

941Verified emails

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The 25 largest geothermal contractors based in Italy

Ranked by team size

Top 25 of 931 company matches for geothermal contractors based in Italy, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ferroli Group	Exact match	San Bonifacio, ItalyHQ recorded Oct 13, 2026	1,001-5,000	435 contacts →
	Exact match “Comfort, designed around you – Since 1955, Ferroli has been a trusted name in HVAC, delivering innovative solutions for heating, cooling and hot water that combine comfort, energy…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2	Fisia Italimpianti	Exact match	Genoa, ItalyHQ recorded Oct 13, 2026	51-200	378 contacts →
	Exact match “Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3	O.M.A. Officina Metalmeccanica Angelucci SPA	Exact match	Castiglione A Casauria Italy, ItalyHQ recorded Oct 13, 2026	201-500	100 contacts →
	Exact match “O.M.A.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4	Tagliabue SPA	Exact match	Paderno Dugnano, ItalyHQ recorded Oct 13, 2026	201-500	82 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	Pergemine SPA	Exact match	Parma, ItalyHQ recorded Oct 13, 2026	51-200	45 contacts →
	Exact match “Pergemine è Drilling Contractor.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6	NEA	Exact match	Grumo Appula, ItalyHQ recorded Oct 13, 2026	51-200	44 contacts →
	Exact match “With over 20 years of experience, NEA offers complete solutions: design, construction and testing of plants, metal, civil and structural carpentry.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7	Hydroalp	Exact match	Costa Volpino, ItalyHQ recorded Oct 13, 2026	51-200	42 contacts →
	Exact match “Founded in 2015, in just a few years Hydroalp has gained a prominent position in the market for the construction of hydroelectric turbines, water-to-wire hydropower plants, green…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8	Paradigma Italia Società Benefit	Exact match	Calcinato, ItalyHQ recorded Oct 13, 2026	11-50	42 contacts →
	Exact match “Paradigma Italia: Sistemi di Climatizzazione Ecologici Paradigma è un'azienda che si basa sulla filosofia della qualità, dell'uso di energie rinnovabili e della semplificazione.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9	Cemi S.P.A	Exact match	Ravenna, ItalyHQ recorded Oct 13, 2026	51-200	36 contacts →
	Exact match “Since 1984, CEMI is specialized in design, installation and maintenance of industrial and civil electrical, instrumental, mechanical, and air conditioning plants systems.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Roger Group S.P.A	Exact match	Milan, ItalyHQ recorded Oct 13, 2026	51-200	35 contacts →
	Exact match “Costruiamo ovunque.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	Frigomeccanica Group	Exact match	Russi, ItalyHQ recorded Oct 13, 2026	51-200	32 contacts →
	Exact match “Frigomeccanica Group Srl, originally established in 1970, has been a leader for 50 years in the design, installation, maintenance, and service of air conditioning, heating, and…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	Bettiol SRL	Exact match	Bolzano, ItalyHQ recorded Oct 13, 2026	51-200	29 contacts →
	Exact match “Nata nel 1957 come ditta individuale, in oltre mezzo secolo di attività e di crescita, il Gruppo Bettiol ha visto e vissuto come protagonista l'evoluzione del proprio settore.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13	Wegreenit SPA	Exact match	Milan, ItalyHQ recorded Oct 13, 2026	51-200	27 contacts →
	Exact match “Wegreenit è General Contractor in interventi di efficientamento energetico.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	Enrico Tavecchia Impianti S.R.L	Exact match	Cornaredo, ItalyHQ recorded Oct 13, 2026	11-50	27 contacts →
	Exact match “Founded in 1953, we design, install and maintain air conditioning, heating, alternative energy, geothermal, fire prevention, fluid distribution, and hydro-sanitary systems, both…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Nalon SRL	Exact match	Oriago Di Mira, ItalyHQ recorded Oct 13, 2026	11-50	26 contacts →
	Exact match “Company profile: Our company, founded in 1989, with twenty years of experience, is capable of guiding its Customers from the design stage up to operational phase, creating systems…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16	Torreggiani Group	Exact match	Reggio Emilia, ItalyHQ recorded Oct 13, 2026	51-200	23 contacts →
	Exact match “Torreggiani è un'azienda specializzata nell'impiantistica industriale civile.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17	STEAM	Exact match	Pisa, ItalyHQ recorded Oct 13, 2026	11-50	23 contacts →
	Exact match “Steam is an internationally-recognized advisory firm for geothermal development.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18	Mader Gmbh	Exact match	Sterzing, ItalyHQ recorded Oct 13, 2026	201-500	21 contacts →
	Exact match “Komplettanbieter am Bau: Heizung & Sanitär, Elektro, Lüftung & Kälte, Hochbau” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	Climart Zeta S.R.L	Exact match	Castenaso, ItalyHQ recorded Oct 13, 2026	11-50	18 contacts →
	Exact match “Installazione e manutenzione di centrali termiche e dei relativi componenti come caldaie, bruciatori, pompe e dei relativi componenti, nonche di impianti di condizionamento in…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20	Tecnimp S.P.A	Exact match	Bologna, ItalyHQ recorded Oct 13, 2026	11-50	18 contacts →
	Exact match “Tecnimp progetta e realizza impianti tecnologici civili ed industriali, sia elettrici che meccanici.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21	Custom Sales SRL	Exact match	Ivrea, ItalyHQ recorded Oct 13, 2026	11-50	18 contacts →
	Exact match “Custom Sales progetta e installa soluzioni avanzate di climatizzazione e riscaldamento, tra cui caldaie di ultima generazione, climatizzatori e pompe di calore, per garantire il…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	Caldaie Melgari	Exact match	Gadesco Pieve Delmona, ItalyHQ recorded Oct 13, 2026	11-50	17 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Clima Store SRL	Exact match	Rome, ItalyHQ recorded Oct 13, 2026	11-50	17 contacts →
	Exact match “Migliorare il clima e il comfort del cliente è il nostro obiettivo primario, la mission alla quale Clima Store non si sottrae.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24	Desamo SRL	Exact match	Padua, ItalyHQ recorded Oct 13, 2026	11-50	15 contacts →
	Exact match “Desamo azienda nasce nel 2014 a Padova dall’unione di due professionisti del marketing e della green economy.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Tecnovalore	Exact match	Milan, ItalyHQ recorded Oct 13, 2026	11-50	14 contacts →
	Exact match “Tecnovalore: Our commitment to energy efficiency is supported by the value of people and choices.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “geothermal contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 931 geothermal contractors based in Italy

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Geothermal contractors based in Italy at a glance

As of Oct 13, 2026

18.1%Verified-email coverage

5.6Average contacts per company

11-50Median size (employees)

4.6%Largest-city concentration · Rome

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

403

11-50

443

51-200

201-500

501-1,000

1,001-5,000

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 931 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Italy whose business descriptions match “geothermal contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 941 professional contacts with verified work emails across the full matched dataset. 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 October 13, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geothermal contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal contractors are there based in Italy?

RevenueBase identified 931 company matches for geothermal contractors associated with Italy as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ferroli Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal contractors?

Rome leads with 43 company records, followed by Milan (36) and Turin (22).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 941 professional contacts with verified work emails tracked across these 931 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 13, 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 SmartSearch, 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.