Company lists · Data refreshed September 2026
Top 25 Sustainable software companies based in Italy
RevenueBase identified 189 sustainable software companies headquartered in Italy as of September 2026 and tracks 5,321 professional contacts across them, including 768 with verified work emails. Milan is the largest hub.
This list covers sustainable software 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 29, 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.
The 25 largest sustainable software companies based in Italy
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 766 contacts → | ||||
Indirect evidence “Nata a Prato nel 2003 è oggi una delle più importanti realtà nel mercato della Green Economy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 423 contacts → | ||||
Partial evidence “We are an Energy Digital and Sustainable Company specialized in sustainability consulting services and 4.0 solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 140 contacts → | ||||
Partial evidence “A national player in energy efficiency and sustainability: Geoside is the Energy Service Company (ESCo) of Italgas Group and a leader in Italy and Europe in the field of energy…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 69 contacts → | ||||
Partial evidence “In a world where environmental responsibility and corporate accountability are more crucial than ever, Redecam stands at the forefront of innovation and sustainability.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 47 contacts → | ||||
Strong evidence “ESGeo is an integrated software application developed by Avvale, able to cover the end-to-end process of corporate sustainability, from data collection, included workflows, to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 41 contacts → | ||||
Indirect evidence “Da oltre un decennio, ci impegniamo nel settore delle energie rinnovabili con una visione chiara incentrata sulla sostenibilità, l'efficienza energetica e la fornitura di servizi…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 40 contacts → | ||||
Indirect evidence “Esserenergia S.p.A è un’azienda giovane e piena di entusiasmo che fa parte di un gruppo industriale solido e di successo.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 contacts → | ||||
Indirect evidence “GS SISTEMI è una società di informatica che conta su esperti del settore e professionisti specializzati nel campo dei dottori commercialisti e delle imprese.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 contacts → | ||||
Indirect evidence “Dal 2008 aiutiamo persone e imprese a risparmiare energia e a vivere in modo più sostenibile.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 29 contacts → | ||||
Indirect evidence “Lemon Sistemi è un'azienda giovane, dinamica e veloce.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 27 contacts → | ||||
Indirect evidence “Green Future Project SB (GFP) is a B Corp and Benefit Corporation, part of Green Future Project Group and a digital partner of RINA.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Indirect evidence “Diamo un futuro agli edifici.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 26 contacts → | ||||
Partial evidence “TerrAria is an Innovative SME established in with 25 years of experience as a software house and consulting company in the field of environmental and energy modeling.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 24 contacts → | ||||
Indirect evidence “BISY srl is an IT company based in Modena, focused on helping companies to optimize and digitize their internal processes through the development of technologically advanced…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Indirect evidence “Elmec Solar è l' azienda del gruppo Elmec di Brunello (VA) che si occupa di energie rinnovabili e di sostenibilità energetica.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 contacts → | ||||
Indirect evidence “Rispetto, semplicità e trasparenza.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Indirect evidence “TreeBlock S.r.l.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Indirect evidence “Natù ESG supporta le aziende con percorsi di sostenibilità personalizzati sulle loro esigenze.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Indirect evidence “Dal 2009, Greenflex è il partner chiave nella trasformazione energetica, ambientale e sociale delle organizzazioni per consentire loro di cambiare rotta verso un'economia che crea…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 contacts → | ||||
Indirect evidence “White Energy Group S.p.a è una società di servizi energetici fondata a Verona nel dicembre del 2015, con sede operativa a Verona e a Cagliari, specializzata nell’attività di…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 contacts → | ||||
Indirect evidence “Our goal is to make smart cities and territories susteainable by offering innovative, integrated and technological solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Indirect evidence “ERMES SpA opera nella produzione di Energia Elettrica da Fonte Rinnovabile attraverso il Development - EPCM - O&M service.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Indirect evidence “In RE2N ogni giorno immaginiamo nuovi percorsi per "ri-sintonizzare" le aziende e le comunità e aiutarle a divenire sempre più sostenibili e innovative grazie a tool e soluzioni…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 13 contacts → | ||||
Partial evidence “Nextgen Renewables stands at the forefront of the renewable energy sector, spearheading the transition towards a sustainable future.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Indirect evidence “3ee Next Energy è un’azienda dalla vocazione ingegneristica e dal cuore ambientalista impegnata nello sviluppo di tecnologie e soluzioni per la riduzione dei consumi energetici e…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: sustainable software companies. 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 sustainable software companies.
- Partial evidence
- Its own public description names part of sustainable software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sustainable software companies. 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 189 sustainable software companies based in Italy
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Sustainable software companies based in Italy at a glance
As of Sep 29, 2026Companies by employee count
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 189 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 sustainable software 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 “sustainable software 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 sustainable software 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 sustainable software 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, 768 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 29, 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.
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 sustainable software 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 sustainable software companies are there based in Italy?
RevenueBase identified 189 sustainable software 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?
NWG S.P.A, headquartered in Prato, tops this list with the largest team on record.
Which city has the most sustainable software companies?
Milan leads with 25 headquartered companies, followed by Rome (17) and Naples (5).
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 768 verified decision-maker contacts tracked across these 189 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 29, 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.
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