Company lists · Data refreshed September 2026

Top 25 Retrofit engineering companies based in Italy

Name: Retrofit engineering 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 180 companies tracked

RevenueBase identified 180 retrofit engineering companies headquartered in Italy as of September 2026 and tracks 971 professional contacts across them, including 285 with verified work emails. Roma is the largest hub.

This list covers retrofit engineering 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 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

180Companies

971Contacts tracked

285Verified emails

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The 25 largest retrofit engineering companies based in Italy

Ranked by team size

Top 25 of 180 retrofit engineering companies 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 engineering 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	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
2	Infraengineering	Indirect evidence	Chieti, ItalyHQ checked Sep 17, 2026	11-50	50 contacts →
	Indirect evidence “InfraEngineering is a design firm fully owned by TOTO Holding, a large organisation based in Italy, operating internationally in the field of motorway concessions, construction of…” Source: RevenueBase Database · checked Sep 17, 2026
3	Aiem SRL	Indirect evidence	Rovigo, ItalyHQ checked Sep 17, 2026	51-200	45 contacts →
	Indirect evidence “AIEM è protagonista sul mercato nazionale ed internazionale con una presenza trentennale nella realizzazione di sistemi tecnologici al servizio di clienti Pubblici e Privati in…” Source: RevenueBase Database · checked Sep 17, 2026
4	Bertoli Costruzioni S.P.A	Indirect evidence	Sabbio Chiese, ItalyHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Bertoli Costruzioni SpA Esperienza e innovazione dal 1946.” Source: RevenueBase Database · checked Sep 17, 2026
5	Cetola S.P.A	Indirect evidence	Pietramontecorvino, ItalyHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “La storia della nostra azienda ha origini in un piccolo borgo nel cuore dei Monti Dauni: Pietramontecorvino.” Source: RevenueBase Database · checked Sep 17, 2026
6	VF Costruzioni E Restauri	Indirect evidence	San Felice Sul Panaro, ItalyHQ checked Sep 17, 2026	11-50	23 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
7	Studio Calvi Beam	Indirect evidence	Pavia, ItalyHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Studio Calvi opera in tutti i settori dell’ingegneria e dell’architettura distinguendosi in particolare nella progettazione e nell’alta consulenza strutturale ed antisismica e nel…” Source: RevenueBase Database · checked Sep 17, 2026
8	SEA Costruzioni	Indirect evidence	Napoli, ItalyHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence “SEA Costruzioni è un'impresa dedicata alla progettazione, costruzione e manutenzione di strutture per l'edilizia civile ed industriale, orientate alla massima applicazione della…” Source: RevenueBase Database · checked Sep 17, 2026
9	G&p Intech	Indirect evidence	Altavilla Vicentina, ItalyHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “G&P Intech è un’azienda con trentennale esperienza nella produzione e fornitura di tecnologie innovative nel settore delle costruzioni e delle infrastrutture.” Source: RevenueBase Database · checked Sep 17, 2026
10	I.T.E. S.R.L. SB	Indirect evidence	Esine, ItalyHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “Nata dall’esperienza ultraventennale dell’idrotermosanitaria Ghiroldi Angelo, ITE srl svolge la propria attività d’impiantistica sia nell’ambito civile che industriale, operando…” Source: RevenueBase Database · checked Sep 17, 2026
11	Italiana Tecnologie S.R.L	Indirect evidence	Lido Di Ostia, ItalyHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Italiana Tecnologie è la Società di Servizi Integrati dedicati all’Edilizia, agli Impianti Tecnologici ed alla Gestione dell’Energia che si rivolge ad una clientela sia privata…” Source: RevenueBase Database · checked Sep 17, 2026
12	E4f SRL	Indirect evidence	Pordenone, ItalyHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “E4F srl è una società di ingegneria e consulenza specializzata in diverse discipline specialistiche.” Source: RevenueBase Database · checked Sep 17, 2026
13	3energy S.R.L	Indirect evidence	Cinisello Balsamo, ItalyHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “3Energy srl é una società di ingegneria e consulenza che offre servizi integrati in ambito Energy, Building & Infrastructure, con particolare attenzione all’individuazione di…” Source: RevenueBase Database · checked Sep 17, 2026
14	Bianchetti SRL	Indirect evidence	Brescia, ItalyHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Bianchetti è un general contractor che si occupa di ristrutturazione edilizia e riqualificazione energetica di immobili residenziali, commerciali e direzionali.” Source: RevenueBase Database · checked Sep 17, 2026
15	Vitanova S.R.L	Indirect evidence	Fiorano Modenese, ItalyHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “Partendo dall’analisi energetica, Vitanova offre un servizio completo di consulenza, progettazione e realizzazione seguendo il cliente in ogni passo sia per interventi diretti su…” Source: RevenueBase Database · checked Sep 17, 2026
16	I.M.B.I. SRL	Partial evidence	Cagliari, ItalyHQ checked Sep 17, 2026	51-200	11 contacts →
	Partial evidence “IMBI Srl is a company of over 80 employees with more than 40 years of experience in the industrial plant engineering sector.” Source: RevenueBase Database · checked Sep 17, 2026
17	CTP Perozzo Impianti SRL	Indirect evidence	Cittadella, ItalyHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Dal 1974 la CTP Perozzo Impianti Srl realizza ed installa impianti civili ed industriali ricercando ed applicando tecniche e sistemi innovativi in grado di assicurare sempre più…” Source: RevenueBase Database · checked Sep 17, 2026
18	NCA Engineering	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “SINCE 1979, A SUSTAINABLE MODEL.” Source: RevenueBase Database · checked Sep 17, 2026
19	3p Progetti SRL	Indirect evidence	Viterbo, ItalyHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Al Servizio dell'ambiente” Source: RevenueBase Database · checked Sep 17, 2026
20	Firmitas SRL	Indirect evidence	Torino, ItalyHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Firmitas è l’impresa edile ESCo con sede a Torino specializzata nella riqualificazione energetica e ristrutturazione degli edifici civili.” Source: RevenueBase Database · checked Sep 17, 2026
21	Sicuro SRL	Indirect evidence	Vicenza, ItalyHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “Esperti nella riqualificazione energetica e nella messa in sicurezza.+ SICURO, grazie al suo team, si propone come interlocutore unico e affidabile nell’esecuzione di interventi…” Source: RevenueBase Database · checked Sep 17, 2026
22	Triveneta Impianti S.R.L	Indirect evidence	Castel D' Azzano Verona, ItalyHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “kit completi adatti ad adeguare le macchine esistenti alle normative vigenti, utilizzando dispositivi laser di ultima generazione e protezioni costruite su misura, la norma…” Source: RevenueBase Database · checked Sep 17, 2026
23	Evonat	Partial evidence	Molfetta, ItalyHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Società di ingegneria e EPC Contractor EVONAT è una società di ingegneria e un EPC Contractor (Engineering, Procurement and Construction) in grado di fornire ai propri clienti…” Source: RevenueBase Database · checked Sep 17, 2026
24	Vertical-Sgr Edifici Green	Indirect evidence	Rimini, ItalyHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “nasce per rispondere, in collaborazione con imprese e professionisti, alle esigenze di riqualificazione, rigenerazione, efficientamento energetico e di adeguamento sismico di…” Source: RevenueBase Database · checked Sep 17, 2026
25	Rebus S.R.L	Indirect evidence	Palermo, ItalyHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “Rebus, società appartenente al Gruppo Xori, offre servizi tecnici integrati, con una forte attenzione al risparmio energetico, al design e al recupero strutturale.” 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 engineering 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 retrofit engineering companies.
Partial evidence: Its own public description names part of retrofit engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name retrofit engineering 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 180 retrofit engineering companies based in Italy

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Retrofit engineering companies based in Italy at a glance

As of Sep 17, 2026

29.4%Verified-email coverage

5.4Average contacts per company

11-50Median size (employees)

5.0%Largest-city concentration · Roma

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 180 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 engineering 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 “retrofit engineering 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 retrofit engineering 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 retrofit engineering 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, 285 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.

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 engineering 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 retrofit engineering companies are there based in Italy?

RevenueBase identified 180 retrofit engineering companies 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 retrofit engineering companies?

Roma leads with 9 headquartered companies, followed by Milano (5) and Vicenza (5).

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 285 verified decision-maker contacts tracked across these 180 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.

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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.