Company lists · Data refreshed September 2026

Top 25 Retrofit contractors based in Italy

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 550 companies tracked

RevenueBase identified 550 retrofit contractors headquartered in Italy as of September 2026 and tracks 2,944 professional contacts across them, including 529 with verified work emails. Roma is the largest hub.

This list covers 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 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

550Companies

2,944Contacts tracked

529Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest retrofit contractors based in Italy

Ranked by team size

Top 25 of 550 retrofit contractors 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 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	Manni Group	Indirect evidence	Verona, ItalyHQ checked Sep 17, 2026	501-1,000	129 contacts →
	Indirect evidence “MANNI offers products, solutions and skills for the world of dry construction, promoting new scenarios to overcome energy waste and pollutant emissions in the existing building…” Source: RevenueBase Database · checked Sep 17, 2026
2	Teicosgroup	Indirect evidence	Milano, ItalyHQ checked Sep 17, 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 17, 2026
3	A3sprogetti	Indirect evidence	Pescara, ItalyHQ checked Sep 17, 2026	11-50	78 contacts →
	Indirect evidence “servizi di progettazione integrata, risparmio energetico, analisi energetiche finalizzate all'energy saving impianti termici impianti elettrici energie alternative.” Source: RevenueBase Database · checked Sep 17, 2026
4	Energy Italy	Indirect evidence	Costermano Sul Garda, ItalyHQ checked Sep 17, 2026	11-50	59 contacts →
	Indirect 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
5	Gaia Energy Systems	Indirect evidence	Gricignano Di Aversa, ItalyHQ checked Sep 17, 2026	11-50	43 contacts →
	Indirect 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
6	Wegreenit SPA	Partial evidence	Milan, ItalyHQ checked Sep 17, 2026	51-200	29 contacts →
	Partial evidence “Wegreenit è General Contractor in interventi di efficientamento energetico.” Source: RevenueBase Database · checked Sep 17, 2026
7	IES Solare S.R.L	Indirect evidence	Livorno, ItalyHQ checked Sep 17, 2026	51-200	28 contacts →
	Indirect 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 17, 2026
8	Energysave	Indirect evidence	Cesano Maderno, ItalyHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “ENERGYSAVE PROGETTAZIONI E CONSULENZE S.R.L.” Source: RevenueBase Database · checked Sep 17, 2026
9	Arcoservizi S.P.A	Indirect evidence	Torino, ItalyHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect 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 17, 2026
10	BE ONE S.P.A	Indirect evidence	Lucca, ItalyHQ checked Sep 17, 2026	11-50	26 contacts →
	Indirect 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 17, 2026
11	Ecobel SRL	Indirect evidence	Trofarello, ItalyHQ checked Sep 17, 2026	11-50	23 contacts →
	Indirect evidence “Siamo convinti che l’utilizzo di energia pulita sia l’unica via per salvaguardare l’ambiente senza stravolgere completamente il nostro stile di vita.” Source: RevenueBase Database · checked Sep 17, 2026
12	Truzzi S.P.A	Indirect evidence	Poggio Rusco, ItalyHQ checked Sep 17, 2026	51-200	22 contacts →
	Indirect evidence “Da oltre sessant’anni il Gruppo Truzzi, realtà imprenditoriale riconosciuta e apprezzata sul territorio nazionale, costruisce architetture del lavoro dando forma ad ambienti che…” Source: RevenueBase Database · checked Sep 17, 2026
13	PT System SRL	Indirect evidence	Trezzano Sul Naviglio, ItalyHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “Dal 2007 portiamo avanti un percorso di crescita che integra competenze in impiantistica, costruzioni e fonti rinnovabili, con l’obiettivo di generare valore duraturo per persone…” Source: RevenueBase Database · checked Sep 17, 2026
14	Baboo Energy Service Company	Indirect evidence	Omegna, ItalyHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “DAL 2009 OLTRE 70 CLIENTI HANNO TROVATO IL TESORO NELL'ENERGIA.” Source: RevenueBase Database · checked Sep 17, 2026
15	Cube SRL	Indirect evidence	Imola, ItalyHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “CUBE Srl è una società attiva nel settore della progettazione impianti, efficienza energetica, acustica, lavorando in questi settori sono già molti anni che confrontiamo con i…” Source: RevenueBase Database · checked Sep 17, 2026
16	Cerpelloni S.R.L	Indirect evidence	Verona, ItalyHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “Fondata nel 1983, l'azienda Cerpelloni SRL si occupa di impiantistica e ristrutturazioni chiavi in mano.” Source: RevenueBase Database · checked Sep 17, 2026
17	Desamo SRL	Indirect evidence	Padova, ItalyHQ checked Sep 17, 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 17, 2026
18	Tecnovalore	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Tecnovalore: Our commitment to energy efficiency is supported by the value of people and choices.” Source: RevenueBase Database · checked Sep 17, 2026
19	Sollegno Engineering SRL	Indirect evidence	Trofarello, ItalyHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “Sollegno Engineering srl progetta e realizza interventi volti al risparmio energetico e allo sfruttamento delle energie rinnovabili negli edifici, siano essi domestici o…” Source: RevenueBase Database · checked Sep 17, 2026
20	Edilvi SPA	Indirect evidence	Villorba, ItalyHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Società di costruzioni dal 1984 e E.S.Co.(Società di Servizi Energetici) dal 2011.” Source: RevenueBase Database · checked Sep 17, 2026
21	Sarden	Indirect evidence	Selargius, ItalyHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “Punto di riferimento in Sardegna, Sarden srl è una società specializzata nel fornire soluzioni per la casa.” Source: RevenueBase Database · checked Sep 17, 2026
22	Equienergia	Indirect evidence	Milan, ItalyHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Individuare > Progettare > Realizzare, soluzioni di efficienza e sostenibilità energetica.” Source: RevenueBase Database · checked Sep 17, 2026
23	Gemini Project S.R.L.	Indirect evidence	Bra, ItalyHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Dᴀʟ 1989 ᴄɪ ᴏᴄᴄᴜᴘɪᴀᴍᴏ ᴅɪ ᴇɴᴇʀɢɪᴇ ʀɪɴɴᴏᴠᴀʙɪʟɪ, ᴏᴛᴏᴠᴏʟᴛᴀɪᴄᴏ ᴇ ᴄʟɪᴍᴀᴛɪᴢᴢᴀᴢɪᴏɴᴇ.” Source: RevenueBase Database · checked Sep 17, 2026
24	Gruppo Eden	Indirect evidence	Bologna, ItalyHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “Gruppo EDEN è una società di ingegneri specializzata nel campo dell'efficienza energetica in edilizia.” Source: RevenueBase Database · checked Sep 17, 2026
25	Prosapio Patrick Service S.R.L	Indirect evidence	Bologna, ItalyHQ checked Sep 17, 2026	51-200	11 contacts →
	Indirect evidence “Ristrutturazioni chiavi in mano, condizionamento e riscaldamento, energie rinnovabili” 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: 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 retrofit contractors.
Partial evidence: Its own public description names part of retrofit contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 550 retrofit contractors based in Italy

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 529 reachable decision-makers.

Free signup · no credit card

View the full list →

Retrofit contractors based in Italy at a glance

As of Sep 17, 2026

18.0%Verified-email coverage

5.4Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · Roma

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

268

11-50

229

51-200

201-500

501-1,000

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 550 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 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 “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 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 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, 529 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.

Retrofit contractors by metro

Retrofit contractors in Roma29

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 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 retrofit contractors are there based in Italy?

RevenueBase identified 550 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?

Manni Group, headquartered in Verona, tops this list with the largest team on record.

Which city has the most retrofit contractors?

Roma leads with 29 headquartered companies, followed by Torino (17) and Milano (15).

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 529 verified decision-maker contacts tracked across these 550 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.

Ready to reach these companies? Verified emails and direct dials for all 550 retrofit contractors based in Italy. Start with a free account, no credit card.

Download this list →

Related lists

Retrofit contractors by geography

Browse the directory

Browse: Companies home · All Italy lists · All Retrofit contractors lists · New lists

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.