Company lists · Data refreshed September 2026

Top 25 Sustainable fuels consulting firms based in Italy

Name: Sustainable fuels consulting firms based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 201 companies tracked

RevenueBase identified 201 sustainable fuels consulting firms headquartered in Italy as of September 2026 and tracks 1,391 professional contacts across them, including 504 with verified work emails. Milan is the largest hub.

This list covers sustainable fuels 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 29, 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 29, 2026 86% judged on-target in blind review

201Companies

1,391Contacts tracked

504Verified emails

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The 25 largest sustainable fuels consulting firms based in Italy

Ranked by team size

Top 25 of 201 sustainable fuels consulting firms based in Italy, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable fuels consulting firms: 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	Greenergy	Indirect evidence	Castellaneta, ItalyHQ checked Sep 29, 2026	51-200	99 contacts →
	Indirect evidence “Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.” Source: RevenueBase Database · checked Sep 29, 2026
2	KEY To Energy	Partial evidence	Rome, ItalyHQ checked Sep 29, 2026	51-200	94 contacts →
	Partial 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 29, 2026
3	Green Horse Advisory	Partial evidence	Milan, ItalyHQ checked Sep 29, 2026	11-50	45 contacts →
	Partial evidence “Green Horse, acronym for GREEN HORizon for a Sustainable Economy, is an advisory project dedicated exclusively to the energy transition industry with particular attention to…” Source: RevenueBase Database · checked Sep 29, 2026
4	Fichtner Italia	Indirect evidence	Genoa, ItalyHQ checked Sep 29, 2026	11-50	38 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 29, 2026
5	ESE Engineering Services For Energy S.R.L	Partial evidence	Milan, ItalyHQ checked Sep 29, 2026	11-50	31 contacts →
	Partial evidence “We serve the global energy community from Corso Magenta, at the beating heart of Milan: consulting, engineering, inventing, looking into every corner of the power generation…” Source: RevenueBase Database · checked Sep 29, 2026
6	SGI Studio Galli Ingegneria S.R.L	Indirect evidence	Rubano, ItalyHQ checked Sep 29, 2026	11-50	29 contacts →
	Indirect evidence “SGI is an Italian leading consultancy firm specialized in water, environmental and civil engineering.” Source: RevenueBase Database · checked Sep 29, 2026
7	Exalto Energy & Innovation	Indirect evidence	Palermo, ItalyHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “Exalto è una società che opera nei settori della consulenza strategica alle imprese e alle istituzioni, della ricerca, dell'efficienza energetica nell’industria e nel terziario…” Source: RevenueBase Database · checked Sep 29, 2026
8	Energysave	Indirect evidence	Cesano Maderno, ItalyHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “ENERGYSAVE PROGETTAZIONI E CONSULENZE S.R.L.” Source: RevenueBase Database · checked Sep 29, 2026
9	Studio Santi	Partial evidence	Santa Marinella, ItalyHQ checked Sep 29, 2026	11-50	27 contacts →
	Partial evidence “Studio Santi is an independent consulting engineering and management firm specializing in the energy sector, with a strong focus on innovation.” Source: RevenueBase Database · checked Sep 29, 2026
10	Studio Rinnovabili	Indirect evidence	Rome, ItalyHQ checked Sep 29, 2026	11-50	25 contacts →
	Indirect evidence “Studio Rinnovabili since 2004 works to meet the needs of those who want to develop renewable energy and energy efficiency projects by supporting with engineering and analysis.” Source: RevenueBase Database · checked Sep 29, 2026
11	Mott Macdonald Italy	Indirect evidence	Genoa, ItalyHQ checked Sep 29, 2026	n/a	22 contacts →
	Indirect evidence “Mott MacDonald Italy è la filiale italiana di Mott MacDonald Limited, società globale di consulenza gestionale, ingegneristica e di sviluppo al vertice del settore energia.” Source: RevenueBase Database · checked Sep 29, 2026
12	Energika SRL	Indirect evidence	Rimini, ItalyHQ checked Sep 29, 2026	11-50	22 contacts →
	Indirect evidence “Massimizziamo l’efficienza, ottimizziamo i costi, riduciamo l’impatto Dal 1997 aiutiamo le aziende a gestire l’energia in modo più efficiente, riducendo costi e sprechi con…” Source: RevenueBase Database · checked Sep 29, 2026
13	Eta-Florence Renewable Energies	Indirect evidence	Florence, ItalyHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Engage ETA Florence Renewable Energies to optimise the success of your green project.” Source: RevenueBase Database · checked Sep 29, 2026
14	Switch Engineering	Indirect evidence	Rome, ItalyHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Switch Engineering nasce dall’esperienza del Gruppo Igeam, che da oltre 40 anni si occupa di sostenibilità, e della Biagi & Partners con le sue notevoli esperienze nel settore…” Source: RevenueBase Database · checked Sep 29, 2026
15	Entec SPA	Indirect evidence	Savigliano, ItalyHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “Entec nasce all’inizio del 2007 con una missione specifica: progettare e realizzare impianti di produzione di energia utilizzando le nuove tecnologie che consentono lo…” Source: RevenueBase Database · checked Sep 29, 2026
16	VDP SRL	Partial evidence	Rome, ItalyHQ checked Sep 29, 2026	11-50	16 contacts →
	Partial evidence “VDP is an Italian engineering company that operates at National and International level in the field of research, consultancy and design for environmental sustainability.” Source: RevenueBase Database · checked Sep 29, 2026
17	Reia S.R.L	Indirect evidence	Casalecchio Di Reno, ItalyHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
18	Greenflex Italia	Indirect evidence	Milan, ItalyHQ checked Sep 29, 2026	501-1,000	15 contacts →
	Indirect evidence “Dal 2009, Greenflex è il partner chiave nella trasformazione energetica, ambientale e sociale delle organizzazioni per consentire loro di cambiare rotta verso un'economia che crea…” Source: RevenueBase Database · checked Sep 29, 2026
19	Energyetika	Indirect evidence	Brescia, ItalyHQ checked Sep 29, 2026	11-50	14 contacts →
	Indirect evidence “Le persone avranno sempre bisogno di energia.” Source: RevenueBase Database · checked Sep 29, 2026
20	Geplan Consulting	Partial evidence	Ferrara, ItalyHQ checked Sep 29, 2026	1-10	14 contacts →
	Partial evidence “GEPlan Consulting offers advanced technical expertise and cutting-edge solutions in the energy sector.” Source: RevenueBase Database · checked Sep 29, 2026
21	T.E.S.I. Engineering S.R.L	Indirect evidence	Trento, ItalyHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “Since its foundation in 1992, T.E.S.I.” Source: RevenueBase Database · checked Sep 29, 2026
22	Teksud	Indirect evidence	Taranto, ItalyHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “TEKSUD S.R.L.S.” Source: RevenueBase Database · checked Sep 29, 2026
23	Sungap	Partial evidence	Bari, ItalyHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “SunGAP is a management consultant and a technical advisor firm that aims to support main energy operators in order to recover the “GAP” of energy production from fossil fuels in…” Source: RevenueBase Database · checked Sep 29, 2026
24	Regula S.R.L	Indirect evidence	Brescia, ItalyHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “Società di consulenza e progettazione in ambito fonti rinnovabili ed efficienza energetica” Source: RevenueBase Database · checked Sep 29, 2026
25	Syniergy	Partial evidence	Castel Maggiore, ItalyHQ checked Sep 29, 2026	1-10	8 contacts →
	Partial evidence “In 2021, NIER decides to concentrate its long experience in integrated sustainability in a new project dedicated to the Energy Transition: SYNIERGY.” Source: RevenueBase Database · checked Sep 29, 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: sustainable fuels 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 sustainable fuels consulting firms.
Partial evidence: Its own public description names part of sustainable fuels consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable fuels 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 201 sustainable fuels consulting firms based in Italy

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Sustainable fuels consulting firms based in Italy at a glance

As of Sep 29, 2026

36.2%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

11.9%Largest-city concentration · Milan

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

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 201 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 sustainable fuels 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 “sustainable fuels 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 sustainable fuels 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 sustainable fuels 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, 504 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 29, 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 sustainable fuels 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 sustainable fuels consulting firms are there based in Italy?

RevenueBase identified 201 sustainable fuels 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?

Greenergy, headquartered in Castellaneta, tops this list with the largest team on record.

Which city has the most sustainable fuels consulting firms?

Milan leads with 24 headquartered companies, followed by Rome (17) and Brescia (7).

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 504 verified decision-maker contacts tracked across these 201 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 29, 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.