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Company lists · Data refreshed September 2026

Top 25 Renewable energy consultancy companies based in Milan, Italy

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 59 companies tracked

RevenueBase identified 59 renewable energy consultancy companies headquartered in Milan, Italy as of September 2026 and tracks 667 professional contacts across them, including 305 with verified work emails. Roma is the largest hub.

This list covers renewable energy consultancy companies headquartered in Milan, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
59Companies
667Contacts tracked
305Verified emails
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The 25 largest renewable energy consultancy companies based in Milan, Italy

Ranked by team size
Top 25 of 59 renewable energy consultancy companies based in Milan, Italy, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy consultancy companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Ambiente Italia S.R.LIndirect evidence
Milan, ItalyHQ checked Sep 5, 202611-5064

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

Source: company website · checked Sep 5, 2026
2
ConnectoPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5059

“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: company website · checked Sep 5, 2026
3
Green Horse AdvisoryPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5045

“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: company website · checked Sep 5, 2026
4
Viridis Energia S.P.APartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5041

“Viridis Energia è un produttore indipendente di energia elettrica da fonti rinnovabili.”

Source: company website · checked Sep 5, 2026
5
Green&green GroupIndirect evidence
Milan, ItalyHQ checked Sep 5, 202611-5036

“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: company website · checked Sep 5, 2026
6
RefeelPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5029

“ReFeel is an independent, integrated network of energy companies, characterised by a “glocal” strategy (a global vision with a local approach) that is clear and transparent: green…”

Source: company website · checked Sep 5, 2026
7
Pansoinco SRLStrong evidence
Milan, ItalyHQ checked Sep 5, 202651-20025

“Pansoinco is a Pansoinco, leader in the energy sector for over 50 years, is a key player in the context of renewable sources, oil and gas, the chemical industry and the…”

Source: company website · checked Sep 5, 2026
8
Revalue EnergiesStrong evidence
Milan, ItalyHQ checked Sep 5, 202611-5023

“Revalue Energies aims to be a benchmark in the renewable energy landscape, focused on creating sustainable value in every step we take.”

Source: company website · checked Sep 5, 2026
9
Renera Energy ItalyPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5023

“Dal 2006 siamo una forza trainante nella transizione verso l'energia rinnovabile, impegnata a portare le persone e le imprese verso una fornitura di biogas ed elettricità a…”

Source: company website · checked Sep 5, 2026
10
Limes Renewable EnergyPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5021

“The Roman term Limes (liː.mes) in latin language had a number of different meanings, including ”path”, ”road”, and it meant the path to penetrate new territories" Limes Renewable…”

Source: company website · checked Sep 5, 2026
11
Sinergies GroupPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5015

“Siamo un’azienda energetica che opera lungo la filiera della produzione e dello stoccaggio di energia da fonte rinnovabile per guidare le persone, le imprese e le comunità verso…”

Source: company website · checked Sep 5, 2026
12
LIO EnergyStrong evidence
Milan, ItalyHQ checked Sep 5, 202611-5014

“Lio Energy is a renewable energy company focused on developing, investing in, and delivering high-value clean power solutions.”

Source: company website · checked Sep 5, 2026
13
ElemensStrong evidence
Milan, ItalyHQ checked Sep 5, 20261-1012

“Elemens is an independent consultancy firm, based in Milan and specialized in the analysis of energy markets.”

Source: company website · checked Sep 5, 2026
14
Decal RenewablesStrong evidence
Milan, ItalyHQ checked Sep 5, 20261-1012

“We aim to be an independent power producer (IPP) committed to supporting the affirmation of renewables as a secure, clean and financially viable source of energy worldwide.”

Source: company website · checked Sep 5, 2026
15
EquienergiaPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5012

“Individuare > Progettare > Realizzare, soluzioni di efficienza e sostenibilità energetica.”

Source: company website · checked Sep 5, 2026
16
CMC Europe ItalyStrong evidence
Milan, ItalyHQ checked Sep 5, 202611-5011

“Offering to our selected customer a wide range of services to support them in their investments in renewable energy project covering the different steps of a project starting from…”

Source: company website · checked Sep 5, 2026
17
Tiemes SRLIndirect evidence
Milan, ItalyHQ checked Sep 5, 202611-5011

“TIEMES S.r.l.”

Source: company website · checked Sep 5, 2026
18
Althesys Strategic ConsultantsPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-5010

“Althesys is an independent professional firm, specialized in strategic advisory and in the research in the environment, energy, utilities and infrastructures industries.”

Source: company website · checked Sep 5, 2026
19
OPENPartial evidence
Milan, ItalyHQ checked Sep 5, 20261-1010

“Open – Operation Energy Srl, nasce nel 2018 con l’obiettivo di promuovere progetti sostenibili legati alla diffusione delle energie rinnovabili.”

Source: company website · checked Sep 5, 2026
20
RenantisIndirect evidence
Milan, ItalyHQ checked Sep 5, 2026501-1,0009

“Renantis exists to build a better future for all by powering people’s everyday lives with care.”

Source: company website · checked Sep 5, 2026
21
GSB ConsultingIndirect evidence
Milan, ItalyHQ checked Sep 5, 20261-107

“GSB Consulting is a consulting company specializing in engineering services.”

Source: company website · checked Sep 5, 2026
22
Chenergia SRLIndirect evidence
Milan, ItalyHQ checked Sep 5, 20261-107

“ChEnergia!”

Source: company website · checked Sep 5, 2026
23
14 ProjectsPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-506

“14 PROJECTS is Advisory Firm, in the Energy, Sustainability, Real Estate & Infrastructure sectors”

Source: company website · checked Sep 5, 2026
24
VIBEAIndirect evidence
Milan, ItalyHQ checked Sep 5, 20261-104

“VIBEA is a consulting firm, founded in 2020, with expertise coming from Oil & Gas sector.”

Source: company website · checked Sep 5, 2026
25
OYS TeknologyPartial evidence
Milan, ItalyHQ checked Sep 5, 202611-504

“OYS Teknology è specializzata nella realizzazione e installazione di impianti di autoproduzione di energie rinnovabili per aziende e prime contractor.”

Source: company website · checked Sep 5, 2026

Showing 25 of 59 renewable energy consultancy companies based in Milan, Italy

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Renewable energy consultancy companies based in Milan, Italy at a glance

As of Sep 5, 2026
1-10Median size (employees)
RomaLargest hub · 76 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
31
11-50
24
51-200
3
501-1,000
1

Email recency for this list is measured across the whole Italy list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Milan, over 59 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 renewable energy consultancy companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Milan, Italy whose own description of what they do matches “renewable energy consultancy companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among renewable energy consultancy companies, and records with no verified work email. Companies headquartered outside Milan 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 an evidence 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, 305 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 5, 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.

Renewable energy consultancy companies by metro in Italy

Frequently asked

How many renewable energy consultancy companies are there based in Milan, Italy?

RevenueBase identified 59 renewable energy consultancy companies headquartered in Milan, 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?

Ambiente Italia S.R.L, headquartered in Milan, tops this list with the largest team on record.

Which city has the most renewable energy consultancy companies?

Roma leads with 76 headquartered companies, followed by Milan (59) and Milano (54).

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 305 verified decision-maker contacts tracked across these 59 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 5, 2026.

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Related lists

Browse: Companies home · Renewable energy consultancy companies in Italy · All Italy lists · All Renewable energy consultancy companies lists · New lists

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 SmartSearch, 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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