Company lists · Data refreshed September 2026

Top 25 Renewable energy research firms based in Italy

Name: Renewable energy research firms based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 456 companies tracked

RevenueBase identified 456 renewable energy research firms headquartered in Italy as of September 2026 and tracks 11,906 professional contacts across them, including 3,766 with verified work emails. Roma is the largest hub.

This list covers renewable energy research firms 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

456Companies

11,906Contacts tracked

3,766Verified emails

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The 25 largest renewable energy research firms based in Italy

Ranked by team size

Top 25 of 456 renewable energy research firms 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 research firms: 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	Enel Green Power	Strong evidence	Roma, ItalyHQ checked Sep 17, 2026	5,001-10,000	5,251 contacts →
	Strong evidence “We are the Enel Group company dedicated to the development and management of renewable energy generation worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
2	ENEA	Partial evidence	Rome, ItalyHQ checked Sep 17, 2026	1,001-5,000	2,396 contacts →
	Partial evidence “Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo sostenibile - ITALY Italian National Agency for New Technologies, Energy and Sustainable Economic Development.” Source: RevenueBase Database · checked Sep 17, 2026
3	NWG S.P.A	Indirect evidence	Prato, ItalyHQ checked Sep 17, 2026	n/a	766 contacts →
	Indirect evidence “Nata a Prato nel 2003 è oggi una delle più importanti realtà nel mercato della Green Economy.” Source: RevenueBase Database · checked Sep 17, 2026
4	Siel S.P.A	Indirect evidence	Trezzano Rosa, ItalyHQ checked Sep 17, 2026	51-200	100 contacts →
	Indirect evidence “In its current structure, Siel Group is a holding company deeply rooted in a world-class economic, technological, and cultural context.” Source: RevenueBase Database · checked Sep 17, 2026
5	Greenergy	Indirect evidence	Castellaneta, ItalyHQ checked Sep 17, 2026	51-200	99 contacts →
	Indirect evidence “Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.” Source: RevenueBase Database · checked Sep 17, 2026
6	Italia GAS E Luce	Strong evidence	Camaiore, ItalyHQ checked Sep 17, 2026	51-200	83 contacts →
	Strong evidence “Advanced industrial knowledge and detailed research help us deliver renewable and cost-effective energy to tens of thousands of businesses and homes around the world.” Source: RevenueBase Database · checked Sep 17, 2026
7	Ambiente Italia S.R.L	Partial evidence	Milan, ItalyHQ checked Sep 17, 2026	11-50	64 contacts →
	Partial evidence “Ambiente Italia is a research and consulting institute working in environmental and territorial planning and analysis.” 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	EVA Energie Valsabbia	Partial evidence	Gavardo, ItalyHQ checked Sep 17, 2026	51-200	57 contacts →
	Partial evidence “EVA: il tuo partner per un futuro energetico sostenibile.” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	Inergia S.P.A	Indirect evidence	Rome, ItalyHQ checked Sep 17, 2026	11-50	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 17, 2026
12	Natpower	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	51-200	47 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 17, 2026
13	GIN Group	Partial evidence	Milano, ItalyHQ checked Sep 17, 2026	n/a	47 contacts →
	Partial evidence “La GIN GROUP è una società giovane e dinamica, creata da tre professionisti che hanno maturato la loro esperienza nel campo dell’energia alternativa attraverso l’importazione e la…” Source: RevenueBase Database · checked Sep 17, 2026
14	Comef S.R.L	Strong evidence	Tradate, ItalyHQ checked Sep 17, 2026	51-200	43 contacts →
	Strong evidence “Comef designs and builds systems for energy generation from renewable sources, energy plants from biomasses (biomass to energy), energy plants from waste (waste to energy), and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Gaia Energy Systems	Partial evidence	Gricignano Di Aversa, ItalyHQ checked Sep 17, 2026	11-50	43 contacts →
	Partial evidence “Gaia Energy Systems opera da anni nei settori delle energie rinnovabili e dell’efficientamento energetico, sia al fianco di aziende che di privati.” Source: RevenueBase Database · checked Sep 17, 2026
16	Samso SPA	Partial evidence	Milano, ItalyHQ checked Sep 17, 2026	11-50	42 contacts →
	Partial evidence “OGNI GIORNO AIUTIAMO LE AZIENDE A DIVENTARE PIÙ EFFICIENTI, A RIDURRE I CONSUMI, A GENERARE AUTONOMAMENTE L’ENERGIA PULITA IN GRADO DI SODDISFARE IL PROPRIO FABBISOGNO.” Il nostro…” Source: RevenueBase Database · checked Sep 17, 2026
17	Eureka S.R.L	Partial evidence	Trento, ItalyHQ checked Sep 17, 2026	51-200	41 contacts →
	Partial evidence “Da oltre un decennio, ci impegniamo nel settore delle energie rinnovabili con una visione chiara incentrata sulla sostenibilità, l'efficienza energetica e la fornitura di servizi…” 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	Agenzia PER L'energia E LO Sviluppo Sostenibile	Indirect evidence	Modena, ItalyHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “La mission di AESS è fornire servizi a imprese, operatori economici e sociali, enti pubblici e di diritto privato e altre associazioni relativi a: – miglioramento dell’efficienza…” Source: RevenueBase Database · checked Sep 17, 2026
20	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
21	Exalto Energy & Innovation	Partial evidence	Palermo, ItalyHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Exalto è una società che opera nei settori della consulenza strategica alle imprese e alle istituzioni, della ricerca, dell'efficienza energetica nell’industria e nel terziario…” Source: RevenueBase Database · checked Sep 17, 2026
22	Ravano Power	Indirect evidence	Genova, ItalyHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “Il gruppo Ravano Power, costituito nel 2006, Si è occupato di distribuzione di gas GPL e sviluppo, progettazione e realizzazione di centrali a fonti rinnovabili (biogas…” Source: RevenueBase Database · checked Sep 17, 2026
23	Studio Santi	Partial evidence	Santa Marinella, ItalyHQ checked Sep 17, 2026	11-50	27 contacts →
	Partial evidence “Studio Santi is an independent consulting engineering and management firm specializing in the energy sector, with a strong focus on innovation.” Source: RevenueBase Database · checked Sep 17, 2026
24	Studio Rinnovabili	Strong evidence	Roma, ItalyHQ checked Sep 17, 2026	11-50	25 contacts →
	Strong evidence “Studio Rinnovabili since 2004 works to meet the needs of those who want to develop renewable energy and energy efficiency projects by supporting with engineering and analysis.” Source: RevenueBase Database · checked Sep 17, 2026
25	Ness S.P.A. SB	Partial evidence	Roma, ItalyHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “NESS è una ESCo certificata UNI 11352 che si pone come obiettivo quello di fornire, a clienti pubblici e privati, soluzioni ai problemi di natura energetica ed ambientale.” 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 research firms. 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 research firms.
Partial evidence: Its own public description names part of renewable energy research firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy research firms. 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 456 renewable energy research firms based in Italy

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Renewable energy research firms based in Italy at a glance

As of Sep 17, 2026

31.6%Verified-email coverage

26.1Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · Roma

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

265

11-50

152

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 456 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 research firms, 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 research firms”. 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 research firms), 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 research firms, 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, 3,766 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.

Renewable energy research firms by metro

Renewable energy research firms in Roma33

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 research firms, 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 research firms are there based in Italy?

RevenueBase identified 456 renewable energy research firms 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 renewable energy research firms?

Roma leads with 33 headquartered companies, followed by Milano (16) and Milan (13).

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 3,766 verified decision-maker contacts tracked across these 456 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.