Company lists · Data refreshed September 2026

Top 25 Renewable energy optimization software based in Italy

Name: Renewable energy optimization software based in Italy
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 666 companies tracked

RevenueBase identified 666 renewable energy optimization software headquartered in Italy as of September 2026 and tracks 5,547 professional contacts across them, including 1,474 with verified work emails and 236 with mobile numbers. Roma is the largest hub.

This list covers renewable energy optimization software 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 5, 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 5, 2026 86% judged on-target in blind review

666Companies

5,547Contacts tracked

1,474Verified emails

236Mobile numbers

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The 25 largest renewable energy optimization software based in Italy

Ranked by team size

Top 25 of 666 renewable energy optimization software based in Italy, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy optimization software: 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	Stern Energy	Partial evidence	Parma, ItalyHQ checked Sep 5, 2026	201-500	205 contacts →
	Partial evidence “Stern Energy, founded in 2008, is an Italy-based company specialized in technical services for photovoltaic plants and BESS systems.” Source: RevenueBase Database · checked Sep 5, 2026
2	STE Energy	Partial evidence	Padova, ItalyHQ checked Sep 5, 2026	51-200	194 contacts →
	Partial evidence “Since June 2025, STE Energy has been acquired by, becoming part of the world.” Source: RevenueBase Database · checked Sep 5, 2026
3	Espe S.P.A	Indirect evidence	Grantorto, ItalyHQ checked Sep 5, 2026	51-200	144 contacts →
	Indirect evidence “Know-how, experience, reliability, innovation.” Source: RevenueBase Database · checked Sep 5, 2026
4	Algowatt	Strong evidence	Milano, ItalyHQ checked Sep 5, 2026	n/a	137 contacts →
	Strong 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 5, 2026
5	Ivpc Group	Partial evidence	Avellino, ItalyHQ checked Sep 5, 2026	201-500	110 contacts →
	Partial evidence “Uno dei principali gruppi a livello nazionale nel settore delle energie rinnovabili.” Source: RevenueBase Database · checked Sep 5, 2026
6	Baxenergy	Partial evidence	Acireale (ct), ItalyHQ checked Sep 5, 2026	51-200	106 contacts →
	Partial evidence “DIGITAL SOLUTIONS FOR THE GLOBAL ENERGY INDUSTRY BaxEnergy, a Yokogawa company, is a global full-service partner of energy companies and industrial operators, delivering…” Source: RevenueBase Database · checked Sep 5, 2026
7	Esapro	Partial evidence	Milano, ItalyHQ checked Sep 5, 2026	51-200	98 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
8	Delos Power	Indirect evidence	Milano, ItalyHQ checked Sep 5, 2026	51-200	85 contacts →
	Indirect evidence “Ogni giorno, lavoriamo per generare un impatto positivo sull'ambiente e sulla società.” Source: RevenueBase Database · checked Sep 5, 2026
9	Lenergy SPA	Partial evidence	Fornacette, ItalyHQ checked Sep 5, 2026	51-200	68 contacts →
	Partial evidence “In Lenergy, acceleriamo la transizione verso l'indipendenza energetica per famiglie e imprese.” Source: RevenueBase Database · checked Sep 5, 2026
10	Unoenergy Green Solutions SPA	Indirect evidence	Cascina, ItalyHQ checked Sep 5, 2026	201-500	63 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 5, 2026
11	Energy Italy	Partial evidence	Costermano Sul Garda, ItalyHQ checked Sep 5, 2026	11-50	59 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 5, 2026
12	Inergia S.P.A	Indirect evidence	Rome, ItalyHQ checked Sep 5, 2026	11-50	53 contacts →
	Indirect evidence “Inergia was founded in 2003 with the strategic diversification of the Santarelli group, a leader in Italy’s real estate industry.” Source: RevenueBase Database · checked Sep 5, 2026
13	GIN Group	Partial evidence	Milano, ItalyHQ checked Sep 5, 2026	n/a	47 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 5, 2026
14	Energy S.P.A	Partial evidence	Sant'angelo Di Piove Di Sacco, ItalyHQ checked Sep 5, 2026	51-200	44 contacts →
	Partial evidence “Energy was founded in 2013 with a dream: make clean energy accessible to everyone, and at any time of day.” Source: RevenueBase Database · checked Sep 5, 2026
15	Gaia Energy Systems	Partial evidence	Gricignano Di Aversa, ItalyHQ checked Sep 5, 2026	11-50	43 contacts →
	Partial evidence “Gaia Energy Systems opera da anni nei settori delle energie rinnovabili e dell’efficientamento energetico, sia al fianco di aziende che di privati.” Source: RevenueBase Database · checked Sep 5, 2026
16	VP Solar SRL	Strong evidence	Montebelluna, ItalyHQ checked Sep 5, 2026	11-50	40 contacts →
	Strong evidence “VP Solar company subject to management and coordination by Tadiran Group Ltd has been working in the field of renewable energy and energy saving since Led by innovation in R&D VP…” Source: RevenueBase Database · checked Sep 5, 2026
17	Forgreen SPA	Strong evidence	Verona, ItalyHQ checked Sep 5, 2026	11-50	37 contacts →
	Strong evidence “ForGreen Group was born by the great experience in renewable energy business and cogeneration system of Multiutility.” Source: RevenueBase Database · checked Sep 5, 2026
18	Lea-Renergy S.R.L	Indirect evidence	Dozza, ItalyHQ checked Sep 5, 2026	51-200	37 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 5, 2026
19	psaier.energies	Strong evidence	Brixen, ItalyHQ checked Sep 5, 2026	51-200	34 contacts →
	Strong evidence “Psaier.energies is an international company based in Brixen, South Tyrol, which has been providing customised solutions in the renewable energy sector since 2001.” Source: RevenueBase Database · checked Sep 5, 2026
20	Sunsolution SRL	Partial evidence	Fontevivo, ItalyHQ checked Sep 5, 2026	11-50	33 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 5, 2026
21	Renergetica	Strong evidence	Genova, ItalyHQ checked Sep 5, 2026	11-50	33 contacts →
	Strong evidence “Renergetica was founded in 2008 with the aim of becoming one of the main professional developers of renewables energy projects and hybrid grids.” Source: RevenueBase Database · checked Sep 5, 2026
22	Regalgrid Europe	Strong evidence	Treviso, ItalyHQ checked Sep 5, 2026	11-50	32 contacts →
	Strong evidence “Regalgrid Europe Srl is an innovative Italian start-up company with the aim of developing a sustainable and advanced system for the management of renewable energy distribution.” Source: RevenueBase Database · checked Sep 5, 2026
23	Lemon Sistemi S.P.A	Indirect evidence	Balestrate, ItalyHQ checked Sep 5, 2026	51-200	29 contacts →
	Indirect evidence “Lemon Sistemi è un'azienda giovane, dinamica e veloce.” Source: RevenueBase Database · checked Sep 5, 2026
24	Energy Intelligence SRL	Partial evidence	San Giovanni In Persiceto, ItalyHQ checked Sep 5, 2026	11-50	29 contacts →
	Partial evidence “ENERGY INTELLIGENCE ®, società di servizi e consulenza energetica.” Source: RevenueBase Database · checked Sep 5, 2026
25	ECO The Photovoltaic Group	Indirect evidence	Cremona, ItalyHQ checked Sep 5, 2026	51-200	28 contacts →
	Indirect evidence “Progettazione, realizzazione e supporto nel tempo.” Source: RevenueBase Database · checked Sep 5, 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: renewable energy optimization software. 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 renewable energy optimization software.
Partial evidence: Its own public description names part of renewable energy optimization software, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy optimization software. 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 666 renewable energy optimization software based in Italy

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Renewable energy optimization software based in Italy at a glance

As of Sep 5, 2026

26.6%Verified-email coverage

4.3%Mobile-number coverage

8.3Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · Roma

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

353

11-50

246

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,3830–30

8831–60

061–90

190–180

2180+

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 optimization software, 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 “renewable energy optimization software”. 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 renewable energy optimization software), 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 renewable energy optimization software, 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, 1,474 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 optimization software by metro

Renewable energy optimization software in Roma30

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 renewable energy optimization software, 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 renewable energy optimization software are there based in Italy?

RevenueBase identified 666 renewable energy optimization software 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?

Stern Energy, headquartered in Parma, tops this list with the largest team on record.

Which city has the most renewable energy optimization software?

Roma leads with 30 headquartered companies, followed by Milan (23) and Milano (23).

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 1,474 verified decision-maker contacts tracked across these 666 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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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.