Company lists · Data refreshed August 2026

Top 25 Clean energy consultancy companies based in Italy

Name: Clean energy consultancy companies based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 1,737 companies tracked

RevenueBase identified 1,737 clean energy consultancy companies headquartered in Italy as of August 2026 and tracks 17,524 professional contacts across them, including 5,089 with verified work emails and 750 with mobile numbers. Roma is the largest hub.

This list covers clean energy consultancy 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

1,737Companies

17,524Contacts tracked

5,089Verified emails

750Mobile numbers

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The 25 largest clean energy consultancy companies based in Italy

Ranked by team size

Top 25 of 1,737 clean energy consultancy companies based in Italy, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy consultancy 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	NWG S.P.A	Indirect evidence	Prato, Italy	n/a	771 contacts →
	Indirect evidence “Nata a Prato nel 2003 è oggi una delle più importanti realtà nel mercato della Green Economy.” Source: RevenueBase Database · checked Aug 31, 2026
2	Enegan	Indirect evidence	Grosseto, Italy	201-500	654 contacts →
	Indirect evidence “Enegan offre soluzioni personalizzate per le aziende abbinando alla fornitura di elettricità, gas e telecomunicazioni una vasta gamma di prodotti e servizi ad alto valore…” Source: RevenueBase Database · checked Aug 31, 2026
3	Sorgenia	Indirect evidence	Milano, Italy	201-500	607 contacts →
	Indirect evidence “Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Source: RevenueBase Database · checked Aug 31, 2026
4	Repower Italia	Partial evidence	Milano, Italy	501-1,000	509 contacts →
	Partial evidence “Efficienza energetica e mobilità elettrica per le PMI.” Source: RevenueBase Database · checked Aug 31, 2026
5	VSB Group	Partial evidence	Parma, Italy	201-500	450 contacts →
	Partial evidence “The VSB Group is headquartered in Dresden and is one of the leading full-service providers in the field of renewable energy.” Source: RevenueBase Database · checked Aug 31, 2026
6	Tecno Group	Partial evidence	Napoli, Italy	201-500	421 contacts →
	Partial evidence “We are an Energy Digital and Sustainable Company specialized in sustainability consulting services and 4.0 solutions.” Source: RevenueBase Database · checked Aug 31, 2026
7	Sólida	Partial evidence	Rome, Italy	201-500	294 contacts →
	Partial evidence “SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Source: RevenueBase Database · checked Aug 31, 2026
8	SCS Consulting	Indirect evidence	Zola Predosa, Italy	51-200	273 contacts →
	Indirect evidence “SCS Consulting is a management consulting company, founded in Bologna in 2001.” Source: RevenueBase Database · checked Aug 31, 2026
9	Power Reply	Partial evidence	Milano, Italy	51-200	245 contacts →
	Partial evidence “Power Reply is the Reply group company focused on the Energy & Utilities market.” Source: RevenueBase Database · checked Aug 31, 2026
10	3ba Group	Partial evidence	Torino, Italy	51-200	170 contacts →
	Partial evidence “3BA è un gruppo che opera nell'ingegneria e nella consulenza, specializzato in infrastrutture, oil and gas, impianti di produzione di energia, anche da fonti rinnovabili, impianti…” Source: RevenueBase Database · checked Aug 31, 2026
11	Geoside	Partial evidence	Casalecchio Di Reno, Italy	51-200	140 contacts →
	Partial evidence “A national player in energy efficiency and sustainability: Geoside is the Energy Service Company (ESCo) of Italgas Group and a leader in Italy and Europe in the field of energy…” Source: RevenueBase Database · checked Aug 31, 2026
12	Tekne SPA	Indirect evidence	Italy	51-200	128 contacts →
	Indirect evidence “Tekne S.p.A.” Source: RevenueBase Database · checked Aug 31, 2026
13	ELC Electroconsult S.P.A	Indirect evidence	Milano, Italy	51-200	99 contacts →
	Indirect evidence “Engineering Consulting Services ELC Electroconsult S.p.A.” Source: RevenueBase Database · checked Aug 31, 2026
14	KEY To Energy	Partial evidence	Milano, Italy	51-200	92 contacts →
	Partial evidence “Key to Energy is a consulting company made up of a team of professionals with solid experience in main European markets in the retail and wholesale energy sectors.” Source: RevenueBase Database · checked Aug 31, 2026
15	Energy Team S.P.A	Partial evidence	Trezzano Sul Naviglio, Italy	51-200	83 contacts →
	Partial evidence “Energy Team è l’operatore italiano leader nel monitoraggio, controllo e gestione del consumo energetico.” Source: RevenueBase Database · checked Aug 31, 2026
16	Italia GAS E Luce	Partial evidence	Camaiore, Italy	51-200	83 contacts →
	Partial 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 Aug 31, 2026
17	Dolomiti Energia	Indirect evidence	Trento, Italy	201-500	80 contacts →
	Indirect evidence “Siamo al tuo fianco per intraprendere un percorso di sostenibilità.” Source: RevenueBase Database · checked Aug 31, 2026
18	Greenwich S.R.L	Indirect evidence	Milano, Italy	51-200	68 contacts →
	Indirect evidence “Greenwich è tra le realtà più affermate in Italia nel settore delle consulenze in sostenibilità e innovazione.” Source: RevenueBase Database · checked Aug 31, 2026
19	Unoenergy Green Solutions SPA	Indirect evidence	Cascina, Italy	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 Aug 31, 2026
20	EVA Energie Valsabbia	Partial evidence	Gavardo, Italy	51-200	56 contacts →
	Partial evidence “EVA: il tuo partner per un futuro energetico sostenibile.” Source: RevenueBase Database · checked Aug 31, 2026
21	LESS	Indirect evidence	Torino, Italy	201-500	52 contacts →
	Indirect evidence “LESS è una società di progettazione ingegneristica, architettonica e di servizi tecnici professionali, una realtà affermata che offre un’ampia gamma di servizi smart e ad alto…” Source: RevenueBase Database · checked Aug 31, 2026
22	Sintecnica	Partial evidence	Pisa, Italy	51-200	47 contacts →
	Partial evidence “At Sintecnica Engineering, we are dedicated to reshaping industry and energy solutions through our proactive and partnership-oriented approach.” Source: RevenueBase Database · checked Aug 31, 2026
23	Braga Group	Partial evidence	Vigevano, Italy	51-200	45 contacts →
	Partial evidence “Braga Group: il tuo partner per la transizione energetica.” Source: RevenueBase Database · checked Aug 31, 2026
24	Eureka S.R.L	Partial evidence	Trento, Italy	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 Aug 31, 2026
25	Espiù S.R.L. Società Benefit	Partial evidence	Oderzo, Italy	51-200	39 contacts →
	Partial evidence “EsPiù S.r.l.\| Società Benefit è una Società di Ingegneria, operante nell'ambito della progettazione e consulenza energetica in particolar modo ad industrie, settore terziario…” Source: RevenueBase Database · checked Aug 31, 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: clean energy consultancy 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 clean energy consultancy companies.
Partial evidence: Its own public description names part of clean energy consultancy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean energy consultancy 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 1,737 clean energy consultancy companies based in Italy

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Clean energy consultancy companies based in Italy at a glance

As of Aug 31, 2026

29.0%Verified-email coverage

4.3%Mobile-number coverage

10.1Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · Roma

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,072

11-50

548

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 clean energy consultancy 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 “clean energy consultancy 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 clean energy consultancy 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 clean energy consultancy 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, 5,089 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 August 31, 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.

Clean energy consultancy companies by metro

Clean energy consultancy companies in Roma84
Clean energy consultancy companies in Milan76
Clean energy consultancy companies in Milano68
Clean energy consultancy companies in Rome47
Clean energy consultancy companies in Torino37
Clean energy consultancy companies in Brescia31
Clean energy consultancy companies in Napoli28

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 clean energy consultancy 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 clean energy consultancy companies are there based in Italy?

RevenueBase identified 1,737 clean energy consultancy companies headquartered in Italy as of August 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?

NWG S.P.A, headquartered in Prato, tops this list with the largest team on record.

Which city has the most clean energy consultancy companies?

Roma leads with 84 headquartered companies, followed by Milan (76) and Milano (68).

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 5,089 verified decision-maker contacts tracked across these 1,737 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.