Company lists · Data refreshed September 2026

Top 25 Solar energy consultation companies based in Italy

RevenueBase identified 1,687 solar energy consultation companies headquartered in Italy as of September 2026 and tracks 9,848 professional contacts across them, including 2,175 with verified work emails. Roma is the largest hub.

This list covers solar energy consultation 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
1,687Companies
9,848Contacts tracked
2,175Verified emails
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The 25 largest solar energy consultation companies based in Italy

Ranked by team size
Top 25 of 1,687 solar energy consultation 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 solar energy consultation 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
1Partial evidenceBologna, ItalyHQ checked Sep 16, 2026501-1,000184 contacts →

Partial evidence

“Belonging to Italian industrial giant Webuild Group, NBI develops turnkey projects and provides expert advice and intervention with regard to plant design and energy services…”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceMilano, ItalyHQ checked Sep 16, 2026n/a137 contacts →

Partial evidence

“TerniEnergia is active in the energies from renewable sources business, particularly in the photovoltaic segment, where it operates as a system integrator.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect 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
4Partial evidenceRoma, ItalyHQ checked Sep 16, 202651-20094 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 16, 2026
5Partial evidenceBarberino Tavarnelle, ItalyHQ checked Sep 16, 202611-5093 contacts →

Partial evidence

“PEF SpA nasce a Firenze nel 2006, iniziando ad operare nel settore delle energie rinnovabili, con la commercializzazione su tutto il territorio nazionale di impianti fotovoltaici…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceCamaiore, ItalyHQ checked Sep 16, 202651-20083 contacts →

Partial evidence

“Advanced industrial knowledge and detailed research help us deliver renewable and cost-effective energy to tens of thousands of businesses and homes around the world.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceMontebelluna, ItalyHQ checked Sep 16, 202611-5081 contacts →

Partial evidence

“RR GROUP è un’azienda che da 10 anni offre consulenza alle aziende e ai privati sulla fornitura di energia elettrica e gas naturale.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidencePescara, ItalyHQ checked Sep 16, 202611-5078 contacts →

Partial 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
9Partial evidenceMilan, ItalyHQ checked Sep 16, 202651-20069 contacts →

Partial evidence

“WHO WE ARE SUNNERG is General Contractor and Service Provider specializing in "turnkey projects" in the 'Energy & Facility Management B2B market, with a particular focus on the PV…”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceFornacette, ItalyHQ checked Sep 16, 202651-20068 contacts →

Partial evidence

“In Lenergy, acceleriamo la transizione verso l'indipendenza energetica per famiglie e imprese.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceCascina, ItalyHQ checked Sep 16, 2026201-50063 contacts →

Indirect evidence

“Unoenergy Green Solutions è una società del Gruppo Unoenergy che opera su tutto il territorio nazionale attraverso la vendita e l’installazione di sistemi per l’efficientamento…”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5062 contacts →

Partial evidence

Energia pulita accessibile a tutti: questo è il sogno di Enpal.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceRoma, ItalyHQ checked Sep 16, 2026201-50061 contacts →

Partial evidence

“Nata nel 1938, SACCIR è parte del gruppo SAMOVAR ha accompagnato l’evoluzione dell’energia in Italia, diventando un punto di riferimento nel settore dei multiservizi tecnologici.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5059 contacts →

Partial 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 16, 2026
15Partial evidencePadova, ItalyHQ checked Sep 16, 202651-20059 contacts →

Partial evidence

“Riqualificazione energetica e impianti tecnologici.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceCostermano Sul Garda, ItalyHQ checked Sep 16, 202611-5059 contacts →

Partial evidence

Energy Italy SpA, azienda parte del gruppo Energy Holding, dal 2012 è tra le realtà più innovative nel settore delle energie rinnovabili e del risparmio energetico.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceAgrate Brianza, ItalyHQ checked Sep 16, 202651-20047 contacts →

Partial evidence

“Braga Group: il tuo partner per la transizione energetica.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceMilano, ItalyHQ checked Sep 16, 2026n/a47 contacts →

Partial evidence

“La GIN GROUP è una società giovane e dinamica, creata da tre professionisti che hanno maturato la loro esperienza nel campo dell’energia alternativa attraverso l’importazione e la…”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceMilan, ItalyHQ checked Sep 16, 202611-5045 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 16, 2026
20Indirect evidenceRovigo, ItalyHQ checked Sep 16, 202651-20043 contacts →

Indirect evidence

“OEMpv nasce nel 2010 dall’esigenza sempre maggiore di fare manutenzione agli impianti fotovoltaici di media e grande dimensione.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceMilano, ItalyHQ checked Sep 16, 202611-5042 contacts →

Partial evidence

“OGNI GIORNO AIUTIAMO LE AZIENDE A DIVENTARE PIÙ EFFICIENTI, A RIDURRE I CONSUMI, A GENERARE AUTONOMAMENTE L’ENERGIA PULITA IN GRADO DI SODDISFARE IL PROPRIO FABBISOGNO.” Il nostro…”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect 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
23Indirect evidenceDozza, ItalyHQ checked Sep 16, 202651-20037 contacts →

Indirect evidence

“Siamo un’azienda leader nella progettazione e installazione di impianti fotovoltaici utility scale, ed operiamo su tutto il territorio nazionale sfruttando le tecnologie più…”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceLissone, ItalyHQ checked Sep 16, 202651-20035 contacts →

Partial evidence

“Diffondere la cultura dell’autonomia energetica in Italia e nel mondo, rendendo le tecnologie sempre più accessibili a tutti, per case e aziende sempre più ecosostenibili è la…”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceFontevivo, ItalyHQ checked Sep 16, 202611-5033 contacts →

Partial evidence

“Siamo il partner strategico per aziende, ESCo e IPP che ricercano soluzioni energetiche bancabili, performanti e orientate alla generazione di valore nel tempo.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,687 solar energy consultation companies based in Italy

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Solar energy consultation companies based in Italy at a glance

As of Sep 16, 2026
22.1%Verified-email coverage
5.8Average contacts per company
1-10Median size (employees)
3.9%Largest-city concentration · Roma
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
971
11-50
603
51-200
75
201-500
17
501-1,000
3
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 1,687 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 solar energy consultation 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 “solar energy consultation 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 solar energy consultation 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 solar energy consultation 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, 2,175 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.

Solar energy consultation companies 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 solar energy consultation 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 solar energy consultation companies are there based in Italy?

RevenueBase identified 1,687 solar energy consultation 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?

NBI SPA, headquartered in Bologna, tops this list with the largest team on record.

Which city has the most solar energy consultation companies?

Roma leads with 65 headquartered companies, followed by Milan (36) and Milano (32).

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 2,175 verified decision-maker contacts tracked across these 1,687 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.