# SUSI Partners

> SUSI Partners is a VC fund in Zug backing Energy, Clean Energy and Renewable Energy. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Zug, Switzerland
- Total investments: 5
- Last investment: Nov 2025
- Lead investor: 100%
- Fund size: $81M
- Last fund: May 2021
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/susi-partners-ag
- Website: https://www.susi-partners.com/

SUSI Partners is a Swiss fund manager specialised in sustainable energy infrastructure investments with EUR 1.6bn in capital commitments from institutional investors. The firm’s investment strategy focuses on equity and credit opportunities across the energy transition spectrum, including clean energy generation, energy efficiency measures, andenergy storage and integrated solutions. With a successful track record of more than 100 transactions in 20 countries to date, SUSI Partners seeks to achieve attractive risk-adjusted returns for its clients and their beneficiaries while contributing meaningfully to achieving global carbon neutrality.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 2 | 40% |
| Clean Energy | 2 | 40% |
| Renewable Energy | 2 | 40% |
| Solar | 1 | 20% |
| Battery | 1 | 20% |

9 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 20% |
| Debt Financing | 1 | 20% |
| Private Equity | 1 | 20% |
| Convertible Note | 1 | 20% |
| Venture - Series Unknown | 1 | 20% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Germany | 1 | 20% |
| Vietnam | 1 | 20% |
| Singapore | 1 | 20% |
| United States | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Alba Renewables | Alba Renewables is a company that develops projects in the onshore wind, solar, and energy storage sectors. |  | Convertible Note | Nov 26, 2025 |  |
| Nextbike | nextbike is market leader in bike sharing. We are taking more and more people on the bike and make it a natural part of urban mobility. As pioneers, we have been developing sustainable bike sharing systems for more than 14 years. We are currently active in more than 200 cities, including Berlin, Warsaw, Glasgow, Cologne, Budapest and Riga.Worldwide, we offer nextbikes as a supplement to bus & train such as in the US, New Zealand and India. Our business model is based on cooperation with cities, transport companies, universities and companies. Together we make our cities even more livable and bike sharing a bit smarter every day. |  | Private Equity | Nov 21, 2024 |  |
| Alba Renewables | Alba Renewables is a company that develops projects in the onshore wind, solar, and energy storage sectors. |  | Venture - Series Unknown | Apr 09, 2024 |  |
| Asia Clean Capital Vietnam | Asia Clean Capital Vietnam is a rooftop and ground-mounted solar photovoltaic (PV) project developer and operator. |  | Seed | Apr 06, 2023 |  |
| OBE Power | OBE Power is the owner and operator of an integrated ecosystem of electric vehicle services for site hosts, EV drivers and related stakeholders. The Company’s platform provides an owner operated “Electric Vehicle Charging as a Service” (EVCaaS) business model at no cost to Host Customers, while providing conveniently located charging locations thatpromote the distributed Live/Work/Play/Learn sustainable lifestyle to their retail customers. Ultimately, the company is building a virtual distributed power plant based on EV batteries and charging assets. The company has developed a unique software solution set for Host Properties, and Charge Port Operators (CPO’s), with software under development to allow for cross platform integration, fleet operations and Vehicle to Grid (V2G) connectivity. World Class customer base including Miami Parking Authority, Palm Beach County, Carnival Cruise Lines, Related Group, Stiles Corp, REEF. | $15M | Debt Financing | Jan 04, 2023 |  |

5 of 5 investments shown.

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## FAQ

### What does SUSI Partners invest in?

SUSI Partners invests primarily in Energy, Clean Energy and Renewable Energy startups, most often at Seed and Debt Financing stage. Most of the 5 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did SUSI Partners last invest?

The most recent investment recorded for SUSI Partners closed in Nov 2025. Shizune tracks 5 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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