Company lists · Data refreshed September 2026

Top 25 Green building consulting companies based in Italy

RevenueBase identified 1,085 green building consulting companies headquartered in Italy as of September 2026 and tracks 7,446 professional contacts across them, including 2,600 with verified work emails. Roma is the largest hub.

This list covers green building consulting 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 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
1,085Companies
7,446Contacts tracked
2,600Verified emails
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The 25 largest green building consulting companies based in Italy

Ranked by team size
Top 25 of 1,085 green building consulting companies 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 green building consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceCeggia, ItalyHQ checked Sep 16, 2026501-1,000396 contacts →

Indirect evidence

“SEINGIM began its activities more than 30 years ago in Venice.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceSesto Fiorentino, ItalyHQ checked Sep 16, 2026201-500375 contacts →

Partial evidence

“ESA engineering is a multidisciplinary consulting firm providing comprehensive engineering services on an international scale.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceCastel Maggiore, ItalyHQ checked Sep 16, 2026201-500215 contacts →

Indirect evidence

“We are a multidisciplinary engineering consultancy driven by integral sustainability.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceMilan, ItalyHQ checked Sep 16, 2026501-1,000140 contacts →

Indirect evidence

“DEERNS è una società di consulenza internazionale in grado di fornire servizi di ingegneria per l’ambiente costruito con un approccio integrato e completo.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceRoma, ItalyHQ checked Sep 16, 202651-200136 contacts →

Indirect evidence

“IGEAM opera dal 1979 nel settore della consulenza e dell’ingegneria per lo sviluppo sostenibile.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceMilan, ItalyHQ checked Sep 16, 202651-200130 contacts →

Indirect evidence

“Tekne S.p.A.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceMilano, ItalyHQ checked Sep 16, 202651-200129 contacts →

Partial evidence

“Engineering, development and consulting services for waste management, remediation, renewable energy, industrial and technological plants, natural resources, urban & land…”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceCastellaneta, ItalyHQ checked Sep 16, 202651-20099 contacts →

Indirect evidence

“Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidencePescara, ItalyHQ checked Sep 16, 202611-5078 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 16, 2026
10Indirect evidenceTorino, ItalyHQ checked Sep 16, 2026201-50071 contacts →

Indirect evidence

“Xori Group è composto da un gruppo di aziende altamente specializzate operanti nei settori ingegneristico, architettonico, energetico e direzionale.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceValdagno, ItalyHQ checked Sep 16, 202651-20069 contacts →

Indirect evidence

“Zordan is the point of reference for luxury brands for the creation of attractive and sustainable retail spaces.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceMedolago, ItalyHQ checked Sep 16, 202651-20068 contacts →

Indirect evidence

“Greenwich è tra le realtà più affermate in Italia nel settore delle consulenze in sostenibilità e innovazione.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5064 contacts →

Partial evidence

“Ambiente Italia is a research and consulting institute working in environmental and territorial planning and analysis.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceMilan, ItalyHQ checked Sep 16, 202611-5055 contacts →

Indirect evidence

“LEΛDING THE CHΛNGE Pioneering innovation in the fashion sector through Advisory Services and Advanced R&D.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceTorino, ItalyHQ checked Sep 16, 2026201-50053 contacts →

Indirect evidence

“LESS è una società di progettazione ingegneristica, architettonica e di servizi tecnici professionali, una realtà affermata che offre un’ampia gamma di servizi smart e ad alto…”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidencePisa, ItalyHQ checked Sep 16, 202651-20051 contacts →

Partial evidence

“Ergo is the consulting firm of Tecno Group specialized in sustainability, safety, and compliance.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceBologna, ItalyHQ checked Sep 16, 202611-5051 contacts →

Indirect evidence

“Open Project S.r.l.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceMilan, ItalyHQ checked Sep 16, 202651-20044 contacts →

Indirect evidence

“TAUW Italia dal 1991 è un punto di riferimento nel campo della valutazione, della consulenza, della progettazione e dei servizi ambientali.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceTurin, ItalyHQ checked Sep 16, 202611-5044 contacts →

Indirect evidence

“We believe that sustainability is a journey, not a destination.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceMilano, ItalyHQ checked Sep 16, 202611-5041 contacts →

Indirect evidence

“Siamo una società di ingegneria e architettura che offre servizi e attività di consulenza.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceGenova, ItalyHQ checked Sep 16, 202611-5038 contacts →

Indirect evidence

“Fichtner Italia è una società indipendente, appartenente al Gruppo Fichtner, attiva sin dalla data di fondazione nel fornire servizi di consulenza di ingegneria a gruppi…”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceOderzo, ItalyHQ checked Sep 16, 202651-20038 contacts →

Indirect 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
23Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5036 contacts →

Partial evidence

Green & Green Group** is an integrated organization made up of six Business Units, specialized in the design, construction, and management of complex projects in the **civil…”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceCuneo, ItalyHQ checked Sep 16, 202611-5035 contacts →

Indirect evidence

“dquadro nasce dall’unione delle competenze di più figure professionali con ampie esperienze lavorative oltre che in Italia anche all’estero.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceMilan, ItalyHQ checked Sep 16, 202611-5034 contacts →

Indirect evidence

“Tekser S.r.l, società di ingegneria con oltre 25 anni di esperienza, offre servizi di progettaIone di impianti meccanici, elettrici e speciali, anche con metodologia BIM, e…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,085 green building consulting companies based in Italy

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Green building consulting companies based in Italy at a glance

As of Sep 16, 2026
34.9%Verified-email coverage
6.9Average contacts per company
1-10Median size (employees)
4.5%Largest-city concentration · Roma
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
764
11-50
274
51-200
27
201-500
8
501-1,000
6
1,001-5,000
1

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 1,085 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 green building consulting 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 “green building consulting 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 green building consulting 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 green building consulting 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, 2,600 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 green building consulting 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 green building consulting companies are there based in Italy?

RevenueBase identified 1,085 green building consulting 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?

Seingim, headquartered in Ceggia, tops this list with the largest team on record.

Which city has the most green building consulting companies?

Roma leads with 49 headquartered companies, followed by Milan (39) and Rome (38).

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 2,600 verified decision-maker contacts tracked across these 1,085 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.