Sosteneo
Part of Generali Investments' platform of asset management firms; founded in partnership with Generali Investments, which anchors its funds Generali Investments (Generali Group)
Also known as Sosteneo SGR S.p.A., Sosteneo S.p.A. Società di gestione del risparmio, Sosteneo SGR SPA
Milan infrastructure SGR of Generali Investments (authorised 2023) investing in construction-ready clean-energy assets: battery storage, solar, wind and biomethane; over €1bn AUM.
- HEADQUARTERS
- Milan, Italy
- FOUNDED
- 2023
- AUM
- €1B (2025)
- OUTSIDE CAPITAL
- Yes
- TEAM LISTED
- 5 people
Focus
- STAGES
- Growth
- SECTORS
- Climate & Energy
- ASSET MIX
- Private equityImpact
- GEOGRAPHY
- EuropeItalyUnited KingdomGermanyAustralia
Overview
Sosteneo SGR was founded in partnership with Generali Investments and authorised by the Bank of Italy in 2023; it is part of Generali Investments' platform of asset management firms. It invests in clean-energy infrastructure at or near the construction-ready stage, after development risk and before operation, with a focus on battery energy storage, hybrid generation, grids and industrial decarbonisation. Fund I (Sosteneo Clean Energy Infrastructure Fund) closed in August 2025 with over €620m of commitments plus €80m of co-investment and is fully invested; Fund II targets €1bn and had raised €300m by August 2026.
Investment thesis
Construction-ready energy-transition infrastructure with contracted cash flows — standalone utility-scale BESS, grid upgrades, hybrid solar/wind/storage, tailored supply for energy-intensive users and industrial decarbonisation — managed actively from construction to operational maturity, with a European focus for Fund II.
PORTFOLIO (9)
- ENOVA GenerationNOTABLEClimate & Energy · since 2026
- Mineo Solar FarmNOTABLEClimate & Energy
- Enel Libra Flexsys (ELF)NOTABLEClimate & Energy
- Lombardy agricultural biomethane portfolioClimate & Energy · since 2026
- Koorangie Energy Storage System (KESS)Climate & Energy
- Sheaf Energy ParkClimate & Energy
- Richborough Energy ParkClimate & Energy
- San Nicola ManfrediClimate & Energy
- Ramacca Solar FarmClimate & Energy
People
Links
Frequently asked questions
Sosteneo is a private equity fund based in Milan, Italy, founded in 2023.
Yes. Sosteneo invests its own capital in private companies.
Sosteneo invests at Growth stage in Climate & Energy.
Key people at Sosteneo include Umberto Tamburrino (Managing Partner / CEO), Ivor Frischknecht (Managing Partner), Federica Gallina (Partner / Head of Investments and Head of Asset Management) and Chris Deves (Partner / Head of Investor Relations).
Sosteneo's investments include ENOVA Generation, Mineo Solar Farm, Enel Libra Flexsys (ELF), Lombardy agricultural biomethane portfolio, Koorangie Energy Storage System (KESS), Sheaf Energy Park, Richborough Energy Park and San Nicola Manfredi, among others.
The most recent publicly reported investment by Sosteneo is ENOVA Generation (Majority stake in a ~350 MW German onshore wind repowering platform (Fund II's first investment; signing)), announced in Aug 2026.
Yes. Sosteneo manages capital from outside investors.