Company lists · Data refreshed September 2026

Top 25 Energy efficiency retrofit contractors based in Italy

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 315 companies tracked

RevenueBase identified 315 energy efficiency retrofit contractors headquartered in Italy as of September 2026 and tracks 2,040 professional contacts across them, including 491 with verified work emails. Roma is the largest hub.

This list covers energy efficiency retrofit contractors 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

315Companies

2,040Contacts tracked

491Verified emails

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The 25 largest energy efficiency retrofit contractors based in Italy

Ranked by team size

Top 25 of 315 energy efficiency retrofit contractors 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 retrofit contractors: 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	Teicosgroup	Indirect evidence	Milano, ItalyHQ checked Sep 16, 2026	51-200	87 contacts →
	Indirect evidence “Our organization has a special attitude with the application of innovative solutions and procedures with a value-based approach in building process and in site management.” Source: RevenueBase Database · checked Sep 16, 2026
2	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
3	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
4	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
5	Enerbrain	Strong evidence	Turin, ItalyHQ checked Sep 16, 2026	11-50	38 contacts →
	Strong evidence “Founded in 2015 within the Innovative Enterprises business incubator of the Politecnico di Torino, Enerbrain has developed energy retrofit solutions for large buildings that allow…” Source: RevenueBase Database · checked Sep 16, 2026
6	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
7	Wegreenit SPA	Strong evidence	Milan, ItalyHQ checked Sep 16, 2026	51-200	29 contacts →
	Strong evidence “Wegreenit è General Contractor in interventi di efficientamento energetico.” Source: RevenueBase Database · checked Sep 16, 2026
8	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
9	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
10	Arcoservizi S.P.A	Partial evidence	Torino, ItalyHQ checked Sep 16, 2026	51-200	26 contacts →
	Partial evidence “Siamo uno dei principali competitor nel mercato dei servizi energetici, con una forte attitudine all’innovazione tecnologica, alla riqualificazione dei servizi, al risparmio…” Source: RevenueBase Database · checked Sep 16, 2026
11	BE ONE S.P.A	Partial evidence	Lucca, ItalyHQ checked Sep 16, 2026	11-50	26 contacts →
	Partial evidence “BE ONE PROIETTA IN AVANTI IL CONCETTO DI ENERGIA, OFFRENDOTI UN SERVIZIO CHE UNISCE TECNOLOGIA, RAPPORTO DIRETTO COL CLIENTE ED ESPERIENZA PLURIENNALE NEL SETTORE.” Source: RevenueBase Database · checked Sep 16, 2026
12	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
13	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
14	GLAYX	Strong evidence	Pisa, ItalyHQ checked Sep 16, 2026	11-50	18 contacts →
	Strong evidence “We are a certified Energy Service Company with over a decade of experience in helping businesses achieve energy efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
15	3e Studio SRL	Strong evidence	Castelfranco Veneto, ItalyHQ checked Sep 16, 2026	11-50	18 contacts →
	Strong evidence “3E STUDIO nasce nel 2015, come società di consulenza e servizi inerenti l’efficienza energetica e agli incentivi le fonti rinnovabili.” Source: RevenueBase Database · checked Sep 16, 2026
16	Baboo Energy Service Company	Partial evidence	Omegna, ItalyHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “DAL 2009 OLTRE 70 CLIENTI HANNO TROVATO IL TESORO NELL'ENERGIA.” Source: RevenueBase Database · checked Sep 16, 2026
17	Estpro	Strong evidence	Padova, ItalyHQ checked Sep 16, 2026	11-50	17 contacts →
	Strong evidence “Forti dell’esperienza di 15 anni nel Real Estate, abbiamo scelto di focalizzarci nell’efficientamento energetico dei patrimoni immobiliari e di esserne il punto di riferimento…” Source: RevenueBase Database · checked Sep 16, 2026
18	NSP SRL	Strong evidence	Formello, ItalyHQ checked Sep 16, 2026	51-200	17 contacts →
	Strong evidence “NSP nasce dalla pluriennale esperienza dei suoi fondatori nel campo degli impianti di conversione dell’energia ad alta ed altissima efficienza, attraverso la fornitura, gestione…” Source: RevenueBase Database · checked Sep 16, 2026
19	Santa Teresa Energy	Partial evidence	Gragnano Trebbiense, ItalyHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “Santa Teresa Energy s.r.l.” Source: RevenueBase Database · checked Sep 16, 2026
20	Gbsols S.R.L	Strong evidence	Milano, ItalyHQ checked Sep 16, 2026	11-50	16 contacts →
	Strong evidence “Our company provides energy efficiency and alternative energy turnkey solutions for residential and business customers” Source: RevenueBase Database · checked Sep 16, 2026
21	Smart Future SRL	Strong evidence	Vicenza, ItalyHQ checked Sep 16, 2026	11-50	16 contacts →
	Strong evidence “Smart Future è una Energy Service Company (E.S.Co.) certificata UNI CEI 11352:2014, attiva da oltre 10 anni nel settore dell’efficienza energetica per edifici residenziali…” Source: RevenueBase Database · checked Sep 16, 2026
22	Vitrano & CO	Indirect evidence	Siracusa, ItalyHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
23	Desamo SRL	Indirect evidence	Padova, ItalyHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Desamo azienda nasce nel 2014 a Padova dall’unione di due professionisti del marketing e della green economy.” Source: RevenueBase Database · checked Sep 16, 2026
24	Solarplay Industry	Partial evidence	Lissone, ItalyHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial evidence “Offriamo un'ampia gamma di servizi e di formule contrattuali che garantiscono la riduzione della spesa energetica con una rateizzazione studiata sulle esigenze del cliente-…” Source: RevenueBase Database · checked Sep 16, 2026
25	Tecnovalore	Strong evidence	Milan, ItalyHQ checked Sep 16, 2026	11-50	13 contacts →
	Strong evidence “Tecnovalore: Our commitment to energy efficiency is supported by the value of people and choices.” 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 retrofit contractors. 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 retrofit contractors.
Partial evidence: Its own public description names part of energy efficiency retrofit contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency retrofit contractors. 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 315 energy efficiency retrofit contractors based in Italy

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Energy efficiency retrofit contractors based in Italy at a glance

As of Sep 16, 2026

24.1%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

5.7%Largest-city concentration · Roma

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

162

11-50

125

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 315 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 retrofit contractors, 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 retrofit contractors”. 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 retrofit contractors), 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 retrofit contractors, 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, 491 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.

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 retrofit contractors, 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 retrofit contractors are there based in Italy?

RevenueBase identified 315 energy efficiency retrofit contractors 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?

Teicosgroup, headquartered in Milano, tops this list with the largest team on record.

Which city has the most energy efficiency retrofit contractors?

Roma leads with 18 headquartered companies, followed by Milan (13) and Napoli (9).

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 491 verified decision-maker contacts tracked across these 315 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.