Company lists · Data refreshed September 2026

Top 25 Sustainability consultants based in Italy

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 1,196 companies tracked

RevenueBase identified 1,196 sustainability consultants headquartered in Italy as of September 2026 and tracks 10,804 professional contacts across them, including 3,196 with verified work emails. Milano is the largest hub.

This list covers sustainability consultants 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 22, 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 22, 2026 86% judged on-target in blind review

1,196Companies

10,804Contacts tracked

3,196Verified emails

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The 25 largest sustainability consultants based in Italy

Ranked by team size

Top 25 of 1,196 sustainability consultants based in Italy, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability consultants: 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	Tecno Group	Partial evidence	Napoli, ItalyHQ checked Sep 22, 2026	201-500	423 contacts →
	Partial evidence “We are an Energy Digital and Sustainable Company specialized in sustainability consulting services and 4.0 solutions.” Source: RevenueBase Database · checked Sep 22, 2026
2	LAND	Partial evidence	Milano, ItalyHQ checked Sep 22, 2026	51-200	348 contacts →
	Partial evidence “LAND – an acronym for Landscape, Architecture, Nature, and Development – is an international landscape consultancy with offices in Austria, Canada, Germany, Italy, Saudi Arabia…” Source: RevenueBase Database · checked Sep 22, 2026
3	Ecol Studio Lifeanalytics	Indirect evidence	Lucca, ItalyHQ checked Sep 22, 2026	201-500	345 contacts →
	Indirect evidence “Salute, Sicurezza, Ambiente e Qualità del prodotto: sei davvero sostenibile?” Source: RevenueBase Database · checked Sep 22, 2026
4	ETC	Partial evidence	Trento, ItalyHQ checked Sep 22, 2026	n/a	288 contacts →
	Partial evidence “ETC is a consultancies and services company focused on environmental sector, made up of environmental and civil engineers.” Source: RevenueBase Database · checked Sep 22, 2026
5	SCS Consulting	Indirect evidence	Zola Predosa, ItalyHQ checked Sep 22, 2026	51-200	272 contacts →
	Indirect evidence “SCS Consulting is a management consulting company, founded in Bologna in 2001.” Source: RevenueBase Database · checked Sep 22, 2026
6	Nier Ingegneria SPA SB	Strong evidence	Castel Maggiore, ItalyHQ checked Sep 22, 2026	201-500	215 contacts →
	Strong evidence “We are a multidisciplinary engineering consultancy driven by integral sustainability.” Source: RevenueBase Database · checked Sep 22, 2026
7	Weglobal	Partial evidence	Milan, ItalyHQ checked Sep 22, 2026	51-200	183 contacts →
	Partial evidence “WEglobal is an independent, international and sustainable development consultancy company that operates in 4 continents and have more than 25 years of experience in project…” Source: RevenueBase Database · checked Sep 22, 2026
8	IGEAM	Indirect evidence	Roma, ItalyHQ checked Sep 22, 2026	51-200	136 contacts →
	Indirect evidence “IGEAM opera dal 1979 nel settore della consulenza e dell’ingegneria per lo sviluppo sostenibile.” Source: RevenueBase Database · checked Sep 22, 2026
9	Montana S.P.A	Indirect evidence	Milano, ItalyHQ checked Sep 22, 2026	51-200	129 contacts →
	Indirect 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 22, 2026
10	HPC Italia	Indirect evidence	Milano, ItalyHQ checked Sep 22, 2026	51-200	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 22, 2026
11	Greenergy	Indirect evidence	Castellaneta, ItalyHQ checked Sep 22, 2026	51-200	99 contacts →
	Indirect evidence “Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.” Source: RevenueBase Database · checked Sep 22, 2026
12	KEY To Energy	Indirect evidence	Roma, ItalyHQ checked Sep 22, 2026	51-200	94 contacts →
	Indirect evidence “Key to Energy is a consulting company made up of a team of professionals with solid experience in main European markets in the retail and wholesale energy sectors.” Source: RevenueBase Database · checked Sep 22, 2026
13	Agriconsulting	Indirect evidence	Rome, ItalyHQ checked Sep 22, 2026	51-200	87 contacts →
	Indirect evidence “Consulenza a 360° per imprese e istituzioni nel settore agricolo, nella gestione del territorio e nello sviluppo sostenibile.” Source: RevenueBase Database · checked Sep 22, 2026
14	Etifor Valuing Nature	Indirect evidence	Padova, ItalyHQ checked Sep 22, 2026	51-200	77 contacts →
	Indirect evidence “Etifor \| Valuing Nature, B Corp and spin-off of the University of Padua, provides international consulting services to put nature at the heart of decision-making.” Source: RevenueBase Database · checked Sep 22, 2026
15	Zordan	Indirect evidence	Valdagno, ItalyHQ checked Sep 22, 2026	51-200	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 22, 2026
16	Greenwich S.R.L	Indirect evidence	Medolago, ItalyHQ checked Sep 22, 2026	51-200	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 22, 2026
17	Up2you	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	51-200	65 contacts →
	Indirect evidence “Siamo la Società Benefit che rende la sostenibilità un motore di crescita per la tua azienda.” Source: RevenueBase Database · checked Sep 22, 2026
18	VVA Group	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	51-200	65 contacts →
	Indirect evidence “Valdani Vicari & Associati (VVA), established in 1992, is a consulting company based in Milan with a team of professionals including economists, sociologists, political…” Source: RevenueBase Database · checked Sep 22, 2026
19	Ambiente Italia S.R.L	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	11-50	64 contacts →
	Indirect evidence “Ambiente Italia is a research and consulting institute working in environmental and territorial planning and analysis.” Source: RevenueBase Database · checked Sep 22, 2026
20	Connecto	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	11-50	59 contacts →
	Indirect evidence “Connecto è una società indipendente di servizi di consulenza e di vendita di soluzioni energetiche integrate che opera con due principi: visione prospettica e prossimità al…” Source: RevenueBase Database · checked Sep 22, 2026
21	ACBC	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	11-50	55 contacts →
	Indirect evidence “LEΛDING THE CHΛNGE Pioneering innovation in the fashion sector through Advisory Services and Advanced R&D.” Source: RevenueBase Database · checked Sep 22, 2026
22	Avanzi	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	11-50	53 contacts →
	Indirect evidence “Dal 1997 ci occupiamo di sostenibilità, innovazione sociale e impatto.” Source: RevenueBase Database · checked Sep 22, 2026
23	Terra Institute	Indirect evidence	Brixen, ItalyHQ checked Sep 22, 2026	51-200	53 contacts →
	Indirect evidence “Als pragmatischer Partner für nachhaltige und digitale Transformation begleiten wir Unternehmen in Europa und weltweit seit über 15 Jahren in Themen wie Nachhaltigkeitsreporting…” Source: RevenueBase Database · checked Sep 22, 2026
24	Ergo SRL	Partial evidence	Pisa, ItalyHQ checked Sep 22, 2026	51-200	51 contacts →
	Partial evidence “Ergo is the consulting firm of Tecno Group specialized in sustainability, safety, and compliance.” Source: RevenueBase Database · checked Sep 22, 2026
25	Open Project	Indirect evidence	Bologna, ItalyHQ checked Sep 22, 2026	11-50	51 contacts →
	Indirect evidence “Open Project S.r.l.” Source: RevenueBase Database · checked Sep 22, 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: sustainability consultants. 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 sustainability consultants.
Partial evidence: Its own public description names part of sustainability consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability consultants. 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 1,196 sustainability consultants based in Italy

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Sustainability consultants based in Italy at a glance

As of Sep 22, 2026

29.6%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

6.5%Largest-city concentration · Milano

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

881

11-50

270

51-200

201-500

501-1,000

1,001-5,000

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 1,196 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 sustainability consultants, 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 “sustainability consultants”. 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 sustainability consultants), 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 sustainability consultants, 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, 3,196 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 22, 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.

Sustainability consultants by metro

Sustainability consultants in Milano78
Sustainability consultants in Milan73
Sustainability consultants in Torino49
Sustainability consultants in Roma47
Sustainability consultants in Rome44
Sustainability consultants in Milano Mi33
Sustainability consultants in Brescia29

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 sustainability consultants, 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 sustainability consultants are there based in Italy?

RevenueBase identified 1,196 sustainability consultants 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?

Tecno Group, headquartered in Napoli, tops this list with the largest team on record.

Which city has the most sustainability consultants?

Milano leads with 78 headquartered companies, followed by Milan (73) and Torino (49).

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 3,196 verified decision-maker contacts tracked across these 1,196 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 22, 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.