Company lists · Data refreshed November 2026

Top 25 Renewable energy design services based in Italy

RevenueBase identified 1,543 company matches for renewable energy design services associated with Italy as of November 2026 and tracks 13,610 professional contacts across them, including 3,549 with verified work emails. Milan is the largest hub.

This list covers company matches for renewable energy design services associated with Italy, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,543Companies
13,610Contacts tracked
3,549Verified emails
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The 25 largest renewable energy design services based in Italy

Ranked by team size
Top 25 of 1,543 company matches for renewable energy design services based in Italy, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchParma, ItalyHQ recorded Nov 6, 2026201-500235 contacts →

Exact match

“Stern Energy, founded in 2008, is an Italy-based company specialized in technical services for photovoltaic plants and BESS systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchRome, ItalyHQ recorded Nov 6, 2026201-500212 contacts →

Exact match

“APS was founded in 1997 in Rome, Italy, and became part of the MAIRE Group on July 30th, 2024, following its acquisition by KT – Kinetics Technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPadua, ItalyHQ recorded Nov 6, 202651-200193 contacts →

Exact match

“Since June 2025, STE Energy has been acquired by, becoming part of the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBologna, ItalyHQ recorded Nov 6, 2026501-1,000192 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGrantorto, ItalyHQ recorded Nov 6, 202651-200153 contacts →

Exact match

“Know-how, experience, reliability, innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMilan, ItalyHQ recorded Nov 6, 2026n/a137 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMezzano, ItalyHQ recorded Nov 6, 2026201-500129 contacts →

Exact match

“Tozzi Green è una società specializzata in servizi e progetti per lo sviluppo d’impianti e per la generazione di energia da fonti rinnovabili.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCastellaneta, ItalyHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“Non siamo tecnici, ma progettisti consapevoli di essere parte del cambiamento.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTrezzano Rosa, ItalyHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“In its current structure, Siel Group is a holding company deeply rooted in a world-class economic, technological, and cultural context.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBari, ItalyHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Nata nel 2009 a Lipsia (Germania), SENEC sviluppa e produce sistemi d’accumulo intelligenti ed offre una gamma completa di prodotti e servizi per l’autosufficienza energetica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBarberino Tavarnelle, ItalyHQ recorded Nov 6, 202611-5089 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMilan, ItalyHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPescara, ItalyHQ recorded Nov 6, 202611-5080 contacts →

Exact match

“servizi di progettazione integrata, risparmio energetico, analisi energetiche finalizzate all'energy saving impianti termici impianti elettrici energie alternative.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRome, ItalyHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFornacette, ItalyHQ recorded Nov 6, 202651-20075 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMilan, ItalyHQ recorded Nov 6, 202611-5069 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCascina, ItalyHQ recorded Nov 6, 2026201-50064 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCostermano Sul Garda, ItalyHQ recorded Nov 6, 202611-5060 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMilan, ItalyHQ recorded Nov 6, 2026n/a59 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRome, ItalyHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“Inergia was founded in 2003 with the strategic diversification of the Santarelli group, a leader in Italy’s real estate industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTurin, ItalyHQ recorded Nov 6, 2026201-50053 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSan Martino Sannita, ItalyHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“L’ambito principale di attività riguarda la progettazione, la realizzazione e la gestione di infrastrutture elettriche e di impianti di produzione di energia da fonti rinnovabili…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchFara Vicentino, ItalyHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Tonello Energie nasce dalla tradizione industriale della Capogruppo Tonello Srl, azienda leader dal 1981 a livello mondiale nella produzione di macchinari del tessile.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDozza, ItalyHQ recorded Nov 6, 202651-20047 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTradate, ItalyHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Comef designs and builds systems for energy generation from renewable sources, energy plants from biomasses (biomass to energy), energy plants from waste (waste to energy), and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,543 renewable energy design services based in Italy

See the full list, filter by size, metro and specialty, and access 3,549 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy design services based in Italy at a glance

As of Nov 6, 2026
26.1%Verified-email coverage
8.8Average contacts per company
1-10Median size (employees)
6.4%Largest-city concentration · Milan
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
872
11-50
533
51-200
96
201-500
20
501-1,000
6
1,001-5,000
1
10001+
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 1,543 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Italy whose business descriptions match “renewable energy design services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,549 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “renewable energy design services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy design services are there based in Italy?

RevenueBase identified 1,543 company matches for renewable energy design services associated with Italy as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Stern Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most renewable energy design services?

Milan leads with 99 company records, followed by Rome (96) and Turin (38).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,549 professional contacts with verified work emails tracked across these 1,543 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 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.