Company lists · Data refreshed September 2026

Top 25 Renewable energy consulting companies based in Italy

Name: Renewable energy consulting 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 1,227 companies tracked

RevenueBase identified 1,227 company matches for renewable energy consulting companies associated with Italy as of September 2026 and tracks 9,758 professional contacts across them, including 2,588 with verified work emails. Milan is the largest hub.

This list covers company matches for renewable energy consulting companies 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 September 17, 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 Sep 17, 2026 How this list was built

1,227Companies

9,758Contacts tracked

2,588Verified emails

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The 25 largest renewable energy consulting companies based in Italy

Ranked by team size

Top 25 of 1,227 company matches for renewable energy consulting companies based in Italy, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	NWG S.P.A	Exact match	Prato, ItalyHQ recorded Sep 17, 2026	n/a	766 contacts →
	Exact match “Nata a Prato nel 2003 è oggi una delle più importanti realtà nel mercato della Green Economy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Sime S.R.L	Exact match	Rosignano Solvay, ItalyHQ recorded Sep 17, 2026	201-500	199 contacts →
	Exact match “Established in 1989 as an Oil and Gas engineering firm, Sime is now a Group of Companies inspired by its past but future oriented, with special focus on energy transition.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	NBI SPA	Exact match	Bologna, ItalyHQ recorded Sep 17, 2026	501-1,000	184 contacts →
	Exact match “Belonging to Italian industrial giant Webuild Group, NBI develops turnkey projects and provides expert advice and intervention with regard to plant design and energy services…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Tozzi Green S.P.A	Exact match	Mezzano, ItalyHQ recorded Sep 17, 2026	201-500	132 contacts →
	Exact match “Tozzi Green è una società specializzata in servizi e progetti per lo sviluppo d’impianti e per la generazione di energia da fonti rinnovabili.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Montana S.P.A	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	51-200	129 contacts →
	Exact match “Engineering, development and consulting services for waste management, remediation, renewable energy, industrial and technological plants, natural resources, urban & land…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Siel S.P.A	Exact match	Trezzano Rosa, ItalyHQ recorded Sep 17, 2026	51-200	100 contacts →
	Exact match “In its current structure, Siel Group is a holding company deeply rooted in a world-class economic, technological, and cultural context.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Greenergy	Exact match	Castellaneta, ItalyHQ recorded Sep 17, 2026	51-200	99 contacts →
	Exact match “Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	ELC Electroconsult S.P.A	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “Engineering Consulting Services ELC Electroconsult S.p.A.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	BFP	Exact match	Modugno, ItalyHQ recorded Sep 17, 2026	11-50	95 contacts →
	Exact match “BFP Group is an engineering & consultancy firm with international offices, applying ten years of experience to offer services worldwide across various sectors, including civil and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	KEY To Energy	Exact match	Rome, ItalyHQ recorded Sep 17, 2026	51-200	94 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	PEF SPA	Exact match	Barberino Tavarnelle, ItalyHQ recorded Sep 17, 2026	11-50	93 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Italia GAS E Luce	Exact match	Camaiore, ItalyHQ recorded Sep 17, 2026	51-200	83 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	EOS Consulting S.P.A	Exact match	Rome, ItalyHQ recorded Sep 17, 2026	11-50	66 contacts →
	Exact match “EOS Consulting è una Advisory Firm, nel settore Energy, Real Estate & Infrastructures, operativa da 20 anni e nata con un’idea guida: la conoscenza come strumento per migliorare.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	VVA Group	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “Valdani Vicari & Associati (VVA), established in 1992, is a consulting company based in Milan with a team of professionals including economists, sociologists, political…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Ambiente Italia S.R.L	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	11-50	64 contacts →
	Exact match “Ambiente Italia is a research and consulting institute working in environmental and territorial planning and analysis.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Unoenergy Green Solutions SPA	Exact match	Cascina, ItalyHQ recorded Sep 17, 2026	201-500	63 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Connecto	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	11-50	59 contacts →
	Exact match “Connecto è una società indipendente di servizi di consulenza e di vendita di soluzioni energetiche integrate che opera con due principi: visione prospettica e prossimità al…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Energy Italy	Exact match	Costermano Sul Garda, ItalyHQ recorded Sep 17, 2026	11-50	59 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	EVA Energie Valsabbia	Exact match	Gavardo, ItalyHQ recorded Sep 17, 2026	51-200	57 contacts →
	Exact match “EVA: il tuo partner per un futuro energetico sostenibile.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Undo Group	Exact match	Rome, ItalyHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “We produce sustainable energy by covering the entire supply chain from site scouting to the construction and operational management of our power plants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Inergia S.P.A	Exact match	Rome, ItalyHQ recorded Sep 17, 2026	11-50	53 contacts →
	Exact match “Inergia was founded in 2003 with the strategic diversification of the Santarelli group, a leader in Italy’s real estate industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	TEN Project	Exact match	San Martino Sannita, ItalyHQ recorded Sep 17, 2026	11-50	52 contacts →
	Exact match “L’ambito principale di attività riguarda la progettazione, la realizzazione e la gestione di infrastrutture elettriche e di impianti di produzione di energia da fonti rinnovabili…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Tonello Energie	Exact match	Fara Vicentino, ItalyHQ recorded Sep 17, 2026	11-50	48 contacts →
	Exact match “Tonello Energie nasce dalla tradizione industriale della Capogruppo Tonello Srl, azienda leader dal 1981 a livello mondiale nella produzione di macchinari del tessile.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	GIN Group	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	n/a	47 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Green Horse Advisory	Exact match	Milan, ItalyHQ recorded Sep 17, 2026	11-50	45 contacts →
	Exact match “Green Horse, acronym for GREEN HORizon for a Sustainable Economy, is an advisory project dedicated exclusively to the energy transition industry with particular attention to…” Recorded in the RevenueBase company graph · Sep 17, 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 “renewable energy consulting companies”. 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 1,227 renewable energy consulting companies based in Italy

See the full list, filter by size, metro and specialty, and access 2,588 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy consulting companies based in Italy at a glance

As of Sep 17, 2026

26.5%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

9.3%Largest-city concentration · Milan

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

763

11-50

390

51-200

201-500

501-1,000

1,001-5,000

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 1,227 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 “renewable energy consulting companies” 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 2,588 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 September 17, 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.

Renewable energy consulting companies by metro

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 “renewable energy consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy consulting companies are there based in Italy?

RevenueBase identified 1,227 company matches for renewable energy consulting companies associated with Italy as of September 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?

NWG S.P.A tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most renewable energy consulting companies?

Milan leads with 114 company records, followed by Rome (84) and Turin (42).

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 2,588 professional contacts with verified work emails tracked across these 1,227 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 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 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.