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, 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

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. Evidence rates how directly each company's own description names renewable energy optimization software: 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.
#	Company	Headquarters	Employees	Contacts
1	Stern EnergyPartial evidence	Parma, ItalyHQ checked Sep 5, 2026	201-500	205
	“Stern Energy, founded in 2008, is an Italy-based company specialized in technical services for photovoltaic plants and BESS systems.” Source: company website · checked Sep 5, 2026
2	STE EnergyPartial evidence	Padova, ItalyHQ checked Sep 5, 2026	51-200	194
	“Since June 2025, STE Energy has been acquired by, becoming part of the world.” Source: company website · checked Sep 5, 2026
3	Espe S.P.AIndirect evidence	Grantorto, ItalyHQ checked Sep 5, 2026	51-200	144
	“Know-how, experience, reliability, innovation.” Source: company website · checked Sep 5, 2026
4	AlgowattStrong evidence	Milano, ItalyHQ checked Sep 5, 2026	n/a	137
	“TerniEnergia is active in the energies from renewable sources business, particularly in the photovoltaic segment, where it operates as a system integrator.” Source: company website · checked Sep 5, 2026
5	Ivpc GroupPartial evidence	Avellino, ItalyHQ checked Sep 5, 2026	201-500	110
	“Uno dei principali gruppi a livello nazionale nel settore delle energie rinnovabili.” Source: company website · checked Sep 5, 2026
6	BaxenergyPartial evidence	Acireale (ct), ItalyHQ checked Sep 5, 2026	51-200	106
	“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: company website · checked Sep 5, 2026
7	EsaproPartial evidence	Milano, ItalyHQ checked Sep 5, 2026	51-200	98
	“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: company website · checked Sep 5, 2026
8	Delos PowerIndirect evidence	Milano, ItalyHQ checked Sep 5, 2026	51-200	85
	“Ogni giorno, lavoriamo per generare un impatto positivo sull'ambiente e sulla società.” Source: company website · checked Sep 5, 2026
9	Lenergy SPAPartial evidence	Fornacette, ItalyHQ checked Sep 5, 2026	51-200	68
	“In Lenergy, acceleriamo la transizione verso l'indipendenza energetica per famiglie e imprese.” Source: company website · checked Sep 5, 2026
10	Unoenergy Green Solutions SPAIndirect evidence	Cascina, ItalyHQ checked Sep 5, 2026	201-500	63
	“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: company website · checked Sep 5, 2026
11	Energy ItalyPartial evidence	Costermano Sul Garda, ItalyHQ checked Sep 5, 2026	11-50	59
	“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: company website · checked Sep 5, 2026
12	Inergia S.P.AIndirect evidence	Rome, ItalyHQ checked Sep 5, 2026	11-50	53
	“Inergia was founded in 2003 with the strategic diversification of the Santarelli group, a leader in Italy’s real estate industry.” Source: company website · checked Sep 5, 2026
13	GIN GroupPartial evidence	Milano, ItalyHQ checked Sep 5, 2026	n/a	47
	“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: company website · checked Sep 5, 2026
14	Energy S.P.APartial evidence	Sant'angelo Di Piove Di Sacco, ItalyHQ checked Sep 5, 2026	51-200	44
	“Energy was founded in 2013 with a dream: make clean energy accessible to everyone, and at any time of day.” Source: company website · checked Sep 5, 2026
15	Gaia Energy SystemsPartial evidence	Gricignano Di Aversa, ItalyHQ checked Sep 5, 2026	11-50	43
	“Gaia Energy Systems opera da anni nei settori delle energie rinnovabili e dell’efficientamento energetico, sia al fianco di aziende che di privati.” Source: company website · checked Sep 5, 2026
16	VP Solar SRLStrong evidence	Montebelluna, ItalyHQ checked Sep 5, 2026	11-50	40
	“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: company website · checked Sep 5, 2026
17	Forgreen SPAStrong evidence	Verona, ItalyHQ checked Sep 5, 2026	11-50	37
	“ForGreen Group was born by the great experience in renewable energy business and cogeneration system of Multiutility.” Source: company website · checked Sep 5, 2026
18	Lea-Renergy S.R.LIndirect evidence	Dozza, ItalyHQ checked Sep 5, 2026	51-200	37
	“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: company website · checked Sep 5, 2026
19	psaier.energiesStrong evidence	Brixen, ItalyHQ checked Sep 5, 2026	51-200	34
	“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: company website · checked Sep 5, 2026
20	Sunsolution SRLPartial evidence	Fontevivo, ItalyHQ checked Sep 5, 2026	11-50	33
	“Siamo il partner strategico per aziende, ESCo e IPP che ricercano soluzioni energetiche bancabili, performanti e orientate alla generazione di valore nel tempo.” Source: company website · checked Sep 5, 2026
21	RenergeticaStrong evidence	Genova, ItalyHQ checked Sep 5, 2026	11-50	33
	“Renergetica was founded in 2008 with the aim of becoming one of the main professional developers of renewables energy projects and hybrid grids.” Source: company website · checked Sep 5, 2026
22	Regalgrid EuropeStrong evidence	Treviso, ItalyHQ checked Sep 5, 2026	11-50	32
	“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: company website · checked Sep 5, 2026
23	Lemon Sistemi S.P.AIndirect evidence	Balestrate, ItalyHQ checked Sep 5, 2026	51-200	29
	“Lemon Sistemi è un'azienda giovane, dinamica e veloce.” Source: company website · checked Sep 5, 2026
24	Energy Intelligence SRLPartial evidence	San Giovanni In Persiceto, ItalyHQ checked Sep 5, 2026	11-50	29
	“ENERGY INTELLIGENCE ®, società di servizi e consulenza energetica.” Source: company website · checked Sep 5, 2026
25	ECO The Photovoltaic GroupIndirect evidence	Cremona, ItalyHQ checked Sep 5, 2026	51-200	28
	“Progettazione, realizzazione e supporto nel tempo.” Source: company website · checked Sep 5, 2026

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

1-10Median size (employees)

RomaLargest hub · 30 HQs

236Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

353

11-50

246

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

1,383

31–60

61–90

90–180

180+

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 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 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.
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 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, 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

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 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.