# Top 5 Renewable Energy Angel Investors in Switzerland in June 2026

## Oliver Samwer
- Type: Angel
- Location: Munich, Bayern, Germany
- Relevant deals: 2
- Stages: Seed, Series A, Pre-Seed
- Focus: Software, Internet, E-Commerce

Oliver Samwer was born in Cologne, Germany, in 1972. Oliver holds M.Sc. degree in Business Administration from WHU – Otto Beisheim School of Management. Upon graduation, Oliver and his two brothers founded Alando.de in 1999. After the sale of Alando.de to eBay Inc., he was Managing Director of eBay, responsible for Germany, Switzerland andAustria. In 2000, Oliver and his two brothers founded Jamba! AG, which was acquired by Verisign Inc. in 2004. In 2007, Oliver founded Rocket Internet. Since 2014, Oliver has served as Rocket’s Chief Executive Officer. Oliver is responsible for strategy development and implementation, business development and investor relations.

## Péter Ilyés
- Type: Angel
- Location: Budapest, Budapest, Hungary
- Relevant deals: 2
- Stages: Seed
- Focus: SaaS, Energy, Software

Péter Ilyés is a former CEO of E.ON Italia.

## Zürcher Kantonalbankand
- Type: Angel
- Relevant deals: 1
- Stages: Seed, Series A, Series B
- Focus: Medical Device, Energy, Medical

Zürcher Kantonalbankand

## Torge Thönnessen
- Type: Angel
- Location: Itzehoe, Schleswig-Holstein, Germany
- Relevant deals: 1
- Stages: Seed
- Focus: Battery, CleanTech, Chemical Engineering

Torge Thönnessen is the Co-founder and CEO at Custom Cells.

## Leopold König
- Type: Angel
- Location: Hamburg, Arkansas, United States
- Relevant deals: 1
- Stages: Seed
- Focus: Battery, CleanTech, Chemical Engineering

Leopold König is the Co-Founder and Managing Director at Customcells. He was a Research Fellow at Fraunhofer Institute for Silicon Technology.