Company lists · Data refreshed September 2026
Top 25 Green building consulting firms based in Italy
RevenueBase identified 1,569 green building consulting firms headquartered in Italy as of September 2026 and tracks 11,511 professional contacts across them, including 4,081 with verified work emails. Roma is the largest hub.
This list covers green building consulting firms 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 28, 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.
The 25 largest green building consulting firms based in Italy
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 396 contacts → | ||||
Indirect evidence “SEINGIM began its activities more than 30 years ago in Venice.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 375 contacts → | ||||
Partial evidence “ESA engineering is a multidisciplinary consulting firm providing comprehensive engineering services on an international scale.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 368 contacts → | ||||
Partial evidence “Artelia Italia è una tra le più rilevanti società di ingegneria in Italia e opera principalmente nei settori Building & Industry, Retail Multi-Site, Energia e Sostenibilità…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 237 contacts → | ||||
Indirect evidence “WSP è una delle principali società di servizi professionali al mondo, impegniamo la nostra consulenza ingegneristica e scientifica per orientare le comunità verso il progresso…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 215 contacts → | ||||
Indirect evidence “We are a multidisciplinary engineering consultancy driven by integral sustainability.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 171 contacts → | ||||
Indirect evidence “3BA è un gruppo che opera nell'ingegneria e nella consulenza, specializzato in infrastrutture, oil and gas, impianti di produzione di energia, anche da fonti rinnovabili, impianti…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 140 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 136 contacts → | ||||
Indirect evidence “IGEAM opera dal 1979 nel settore della consulenza e dell’ingegneria per lo sviluppo sostenibile.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 135 contacts → | ||||
Indirect evidence “Founded in 1992 in Paris by Mario Cucinella, MCA - Mario Cucinella Architects includes more than 100 professionals based in Bologna and Milan.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 130 contacts → | ||||
Indirect evidence “Tekne S.p.A.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 130 contacts → | ||||
Indirect evidence “Anyone who wishes to work well is forced to keep up with increasingly accelerated innovations: new tools, new collaborative methods, new requirements.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 129 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 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 101 contacts → | ||||
Indirect evidence “è una società di consulenza ambientale fondata nel 1994 e con sede a Milano, parte dell’HPC Group, realtà internazionale attiva dal 1948 con oltre professionisti in Paesi europei.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 99 contacts → | ||||
Indirect evidence “Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 86 contacts → | ||||
Indirect evidence “Company specializing in integrated design in the field of engineering, architecture, environment.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 71 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 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 69 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 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 68 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 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 66 contacts → | ||||
Partial evidence “EOS Consulting è una Advisory Firm, nel settore Energy, Real Estate & Infrastructures, operativa da 20 anni e nata con un’idea guida: la conoscenza come strumento per migliorare.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 64 contacts → | ||||
Partial evidence “Ambiente Italia is a research and consulting institute working in environmental and territorial planning and analysis.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 53 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 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 52 contacts → | ||||
Indirect evidence “Serviamo imprese, organizzazioni e persone con progetti e soluzioni di impiantistica personalizzate ed ecosostenibili, in modo rapido e senza sprechi, quando è per loro utile…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 51 contacts → | ||||
Partial evidence “Ergo is the consulting firm of Tecno Group specialized in sustainability, safety, and compliance.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 51 contacts → | ||||
Indirect evidence “Open Project S.r.l.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: green building consulting firms. 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 green building consulting firms.
- Partial evidence
- Its own public description names part of green building consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name green building consulting firms. 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 1,569 green building consulting firms based in Italy
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Green building consulting firms based in Italy at a glance
As of Sep 28, 2026Companies by employee count
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 1,569 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 firms, 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 firms”. 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 firms), 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 firms, 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, 4,081 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 28, 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.
Green building consulting firms by metro
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 firms, 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 firms are there based in Italy?
RevenueBase identified 1,569 green building consulting firms 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 firms?
Roma leads with 75 headquartered companies, followed by Milan (57) and Milano (53).
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 4,081 verified decision-maker contacts tracked across these 1,569 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 28, 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.
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