Company lists · Data refreshed October 2026

Top 25 Commercial solar engineering firms based in Italy

Name: Commercial solar engineering firms based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 1,984 companies tracked

RevenueBase identified 1,984 company matches for commercial solar engineering firms associated with Italy as of October 2026 and tracks 13,271 professional contacts across them, including 3,455 with verified work emails. Rome is the largest hub.

This list covers company matches for commercial solar engineering firms 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 October 10, 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 Oct 10, 2026 How this list was built

1,984Companies

13,271Contacts tracked

3,455Verified emails

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The 25 largest commercial solar engineering firms based in Italy

Ranked by team size

Top 25 of 1,984 company matches for commercial solar engineering firms based in Italy, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Manens S.P.A	Exact match	Padua, ItalyHQ recorded Oct 10, 2026	201-500	306 contacts →
	Exact match “Manens S.p.A, architecture and engineering company with over 50 years of experience, is a leader in the integrated design of large-scale projects in the public and private…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Stern Energy	Exact match	Parma, ItalyHQ recorded Oct 10, 2026	201-500	220 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 · Oct 10, 2026 · View company records in RevenueBase
3	STE Energy	Exact match	Padua, ItalyHQ recorded Oct 10, 2026	51-200	188 contacts →
	Exact match “Since June 2025, STE Energy has been acquired by, becoming part of the world.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Espe S.P.A	Exact match	Grantorto, ItalyHQ recorded Oct 10, 2026	51-200	146 contacts →
	Exact match “Know-how, experience, reliability, innovation.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Algowatt	Exact match	Milan, ItalyHQ recorded Oct 10, 2026	n/a	132 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 · Oct 10, 2026 · View company records in RevenueBase
6	Tekne SPA	Exact match	Milan, ItalyHQ recorded Oct 10, 2026	51-200	127 contacts →
	Exact match “Tekne S.p.A.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Esapro	Exact match	Milan, ItalyHQ recorded Oct 10, 2026	51-200	108 contacts →
	Exact match “We have more than 10 years’ experience in designing, building and managing renewable power plant and an enviable track record in the maintenance, revamping and 24/7 surveillance…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	ELC Electroconsult S.P.A	Exact match	Milan, ItalyHQ recorded Oct 10, 2026	51-200	88 contacts →
	Exact match “Engineering Consulting Services ELC Electroconsult S.p.A.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Sunnerg Group	Exact match	Milan, ItalyHQ recorded Oct 10, 2026	51-200	84 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 · Oct 10, 2026 · View company records in RevenueBase
10	A3sprogetti	Exact match	Pescara, ItalyHQ recorded Oct 10, 2026	11-50	79 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 · Oct 10, 2026 · View company records in RevenueBase
11	Lenergy SPA	Exact match	Fornacette, ItalyHQ recorded Oct 10, 2026	51-200	72 contacts →
	Exact match “In Lenergy, acceleriamo la transizione verso l'indipendenza energetica per famiglie e imprese.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Saccir S.P.A	Exact match	Rome, ItalyHQ recorded Oct 10, 2026	201-500	70 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 · Oct 10, 2026 · View company records in RevenueBase
13	Unoenergy Green Solutions SPA	Exact match	Cascina, ItalyHQ recorded Oct 10, 2026	201-500	60 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 · Oct 10, 2026 · View company records in RevenueBase
14	Installazioni Impianti S.P.A	Exact match	Rome, ItalyHQ recorded Oct 10, 2026	201-500	56 contacts →
	Exact match “Da oltre cinquant’anni nel settore.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Energy Italy	Exact match	Costermano Sul Garda, ItalyHQ recorded Oct 10, 2026	11-50	55 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 · Oct 10, 2026 · View company records in RevenueBase
16	LESS	Exact match	Turin, ItalyHQ recorded Oct 10, 2026	201-500	53 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 · Oct 10, 2026 · View company records in RevenueBase
17	Open Project	Exact match	Bologna, ItalyHQ recorded Oct 10, 2026	11-50	50 contacts →
	Exact match “Open Project S.r.l.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	GIN Group	Exact match	Milan, ItalyHQ recorded Oct 10, 2026	n/a	49 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 · Oct 10, 2026 · View company records in RevenueBase
19	Lea-Renergy S.R.L	Exact match	Dozza, ItalyHQ recorded Oct 10, 2026	51-200	48 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 · Oct 10, 2026 · View company records in RevenueBase
20	Sky-Nrg	Exact match	Castiglione Delle Stiviere, ItalyHQ recorded Oct 10, 2026	51-200	48 contacts →
	Exact match “We turn the complexity of the energy transition into reliable, high-performance infrastructure built to last.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	TEN Project	Exact match	San Martino Sannita, ItalyHQ recorded Oct 10, 2026	11-50	47 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 · Oct 10, 2026 · View company records in RevenueBase
22	Hydroalp	Exact match	Costa Volpino, ItalyHQ recorded Oct 10, 2026	51-200	42 contacts →
	Exact match “Founded in 2015, in just a few years Hydroalp has gained a prominent position in the market for the construction of hydroelectric turbines, water-to-wire hydropower plants, green…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Forgreen SPA	Exact match	Verona, ItalyHQ recorded Oct 10, 2026	11-50	41 contacts →
	Exact match “ForGreen Group was born by the great experience in renewable energy business and cogeneration system of Multiutility.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Oempv S.R.L	Exact match	Rovigo, ItalyHQ recorded Oct 10, 2026	51-200	39 contacts →
	Exact match “OEMpv nasce nel 2010 dall’esigenza sempre maggiore di fare manutenzione agli impianti fotovoltaici di media e grande dimensione.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	S.I.C.I.E.T. S.R.L. - Albinia GR	Exact match	Orbetello, ItalyHQ recorded Oct 10, 2026	51-200	39 contacts →
	Exact match “Con una esperienza trentennale nel settore impiantistico, la SICIET è in grado di offrire un know-how consolidato nel campo della progettazione, fornitura e realizzazione di…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial solar engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,984 commercial solar engineering firms based in Italy

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Commercial solar engineering firms based in Italy at a glance

As of Oct 10, 2026

26.0%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

5.0%Largest-city concentration · Rome

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

1,125

11-50

714

51-200

108

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 1,984 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 “commercial solar engineering firms” 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 3,455 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 October 10, 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.

Commercial solar engineering firms by metro

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 “commercial solar engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial solar engineering firms are there based in Italy?

RevenueBase identified 1,984 company matches for commercial solar engineering firms associated with Italy as of October 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?

Manens S.P.A tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most commercial solar engineering firms?

Rome leads with 99 company records, followed by Milan (96) and Turin (45).

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 3,455 professional contacts with verified work emails tracked across these 1,984 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 October 10, 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.