Company lists · Data refreshed September 2026

Top 25 Energy efficiency consultants based in Italy

Name: Energy efficiency consultants based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 671 companies tracked

RevenueBase identified 671 energy efficiency consultants headquartered in Italy as of September 2026 and tracks 3,866 professional contacts across them, including 1,079 with verified work emails. Roma is the largest hub.

This list covers energy efficiency consultants 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 16, 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 16, 2026 86% judged on-target in blind review

671Companies

3,866Contacts tracked

1,079Verified emails

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The 25 largest energy efficiency consultants based in Italy

Ranked by team size

Top 25 of 671 energy efficiency consultants based in Italy, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency consultants: 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	Greenergy	Indirect evidence	Castellaneta, ItalyHQ checked Sep 16, 2026	51-200	99 contacts →
	Indirect evidence “Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.” Source: RevenueBase Database · checked Sep 16, 2026
2	Energy Team S.P.A	Partial evidence	Trezzano Sul Naviglio, ItalyHQ checked Sep 16, 2026	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 Sep 16, 2026
3	A3sprogetti	Partial evidence	Pescara, ItalyHQ checked Sep 16, 2026	11-50	78 contacts →
	Partial evidence “servizi di progettazione integrata, risparmio energetico, analisi energetiche finalizzate all'energy saving impianti termici impianti elettrici energie alternative.” Source: RevenueBase Database · checked Sep 16, 2026
4	Clever Servizi Energetici S.P.A	Partial evidence	Rivoli, ItalyHQ checked Sep 16, 2026	51-200	64 contacts →
	Partial evidence “Comat Servizi Energetici S.p.A.” Source: RevenueBase Database · checked Sep 16, 2026
5	Energy Italy	Partial evidence	Costermano Sul Garda, ItalyHQ checked Sep 16, 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 16, 2026
6	Samso SPA	Strong evidence	Milano, ItalyHQ checked Sep 16, 2026	11-50	42 contacts →
	Strong 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 16, 2026
7	Espiù S.R.L. Società Benefit	Partial evidence	Oderzo, ItalyHQ checked Sep 16, 2026	51-200	38 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 Sep 16, 2026
8	ESE Engineering Services For Energy S.R.L	Partial evidence	Milano, ItalyHQ checked Sep 16, 2026	11-50	31 contacts →
	Partial evidence “We serve the global energy community from Corso Magenta, at the beating heart of Milan: consulting, engineering, inventing, looking into every corner of the power generation…” Source: RevenueBase Database · checked Sep 16, 2026
9	Cogenio	Strong evidence	Roma, ItalyHQ checked Sep 16, 2026	n/a	31 contacts →
	Strong evidence “Cogenio is an energy-efficiency service platform set up to help businesses cut their energy costs and CO2 emissions, by providing them with solutions designed to improve their…” Source: RevenueBase Database · checked Sep 16, 2026
10	Exalto Energy & Innovation	Strong evidence	Palermo, ItalyHQ checked Sep 16, 2026	11-50	28 contacts →
	Strong 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 16, 2026
11	Enertech Solution	Strong evidence	Milano, ItalyHQ checked Sep 16, 2026	11-50	28 contacts →
	Strong evidence “Siamo un’innovativa società di ingegneria specializzata nel settore dell’energia e dell’efficienza energetica.” Source: RevenueBase Database · checked Sep 16, 2026
12	IES Solare S.R.L	Strong evidence	Livorno, ItalyHQ checked Sep 16, 2026	51-200	28 contacts →
	Strong evidence “Ies Solare srl vanta 20 anni di esperienza nel campo delle energie rinnovabili e risparmio energetico, proponendo soluzioni innovative e tecnologiche per l’efficientamento…” Source: RevenueBase Database · checked Sep 16, 2026
13	Energysave	Partial evidence	Cesano Maderno, ItalyHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “ENERGYSAVE PROGETTAZIONI E CONSULENZE S.R.L.” Source: RevenueBase Database · checked Sep 16, 2026
14	Sinergia Consulting SRL	Partial evidence	Adro, ItalyHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “Sinergia Consulting è la società di consulenza in ambito energetico che opera nel mercato italiano.” Source: RevenueBase Database · checked Sep 16, 2026
15	SOL Lucet	Strong evidence	Sorbano Del Giudice Lucca, ItalyHQ checked Sep 16, 2026	11-50	27 contacts →
	Strong evidence “Ci occupiamo di offrire i migliori servizi in ambito di innovazione ed efficientamento energetico.” Source: RevenueBase Database · checked Sep 16, 2026
16	Studio Santi	Partial evidence	Santa Marinella, ItalyHQ checked Sep 16, 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 16, 2026
17	Energy Saving SPA	Strong evidence	Monza, ItalyHQ checked Sep 16, 2026	11-50	26 contacts →
	Strong evidence “Saving Energy Spa is a well know independent energy consultancy company” Source: RevenueBase Database · checked Sep 16, 2026
18	Studio Rinnovabili	Strong evidence	Roma, ItalyHQ checked Sep 16, 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 16, 2026
19	Greenvest	Strong evidence	Roma, ItalyHQ checked Sep 16, 2026	11-50	24 contacts →
	Strong evidence “Greenvest è attiva nel settore dell'efficienza energetica a livello nazionale ed internazionale ed opera come società di Servizi Energetici integrati certificata (ESCo) secondo la…” Source: RevenueBase Database · checked Sep 16, 2026
20	Energika SRL	Strong evidence	Rimini, ItalyHQ checked Sep 16, 2026	11-50	22 contacts →
	Strong evidence “Massimizziamo l’efficienza, ottimizziamo i costi, riduciamo l’impatto Dal 1997 aiutiamo le aziende a gestire l’energia in modo più efficiente, riducendo costi e sprechi con…” Source: RevenueBase Database · checked Sep 16, 2026
21	Strutture Energia SRL Società Benefit	Partial evidence	Trescore Balneario, ItalyHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Strutture Energia è uno degli studi di progettazione più strutturati del territorio ed è specializzata in interventi di riqualificazione energetica e di ottimizzazione economica e…” Source: RevenueBase Database · checked Sep 16, 2026
22	ALI Energy Advisor	Partial evidence	Portogruaro, ItalyHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Non siamo un fornitore di energia e gas.” Source: RevenueBase Database · checked Sep 16, 2026
23	We Service	Partial evidence	Erba, ItalyHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Outsourcing aziendale - Consulenza energetica” Source: RevenueBase Database · checked Sep 16, 2026
24	Industrial Service & Facility SRL	Indirect evidence	Altavilla Vicentina, ItalyHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “Industrial Service Facility S.r.l.” Source: RevenueBase Database · checked Sep 16, 2026
25	Aere SRL	Strong evidence	Castelli Calepio, ItalyHQ checked Sep 16, 2026	11-50	21 contacts →
	Strong evidence “Siamo AERE, una Energy Service Company (ESCo) tra le principali realtà di consulenza per l’efficienza e il risparmio energetico a Brescia, in Lombardia e in tutta Italia.” Source: RevenueBase Database · checked Sep 16, 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: energy efficiency consultants. 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 energy efficiency consultants.
Partial evidence: Its own public description names part of energy efficiency consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency consultants. 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 671 energy efficiency consultants based in Italy

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Energy efficiency consultants based in Italy at a glance

As of Sep 16, 2026

27.9%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · Roma

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

441

11-50

196

51-200

201-500

501-1,000

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 671 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 energy efficiency consultants, 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 “energy efficiency consultants”. 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 energy efficiency consultants), 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 energy efficiency consultants, 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, 1,079 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 16, 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.

Energy efficiency consultants by metro

Energy efficiency consultants in Roma28

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 energy efficiency consultants, 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 energy efficiency consultants are there based in Italy?

RevenueBase identified 671 energy efficiency consultants 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?

Greenergy, headquartered in Castellaneta, tops this list with the largest team on record.

Which city has the most energy efficiency consultants?

Roma leads with 28 headquartered companies, followed by Milano (23) and Torino (20).

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 1,079 verified decision-maker contacts tracked across these 671 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 16, 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.