# Top 5 Renewable Energy Angel Investors in Austria in July 2026

## Johann "Hansi" Hansmann
- Type: Angel
- Location: Vienna, Wien, Austria
- Relevant deals: 2
- Stages: Seed, Angel, Pre-Seed
- Focus: Software, Health Care, Fitness

Dr. Johann ‘Hansi’ Hansmann was born in Austria and studied economics in Vienna. He spent the major part of his professional life working as an executive in the pharmaceutical industry in Austria, Germany, UK and Spain. He gathered several years of entrepreneurial experience running successfully his own pharmaceutical company in Spain afterconducting a management buy-out of a big pharmaceutical plant, making an exit in 2003. Since this time he is active as investor and business angel. He currently holds investments with a geographical focus on Austria, Germany, UK and Spain both internet and in the health industry. He led Runtastic, shpock, mysugr and just recently durchblicker and Busuu to extraordinary exits. He was president of the ‘Austrian Angels Investors Association’ until 2021, was awarded 'Best European Early Stage Investor' in 2016 by eban.org and is now based in Vienna and tries to find spare time to ride his mountain bike.

## Roman Scharf
- Type: Angel
- Location: Vienna, Wien, Austria
- Relevant deals: 1
- Stages: Series B, Pre-Seed, Series A
- Focus: Energy, FinTech, Medical

General Partner at 3VC.

## Christoph Ostermann
- Type: Angel
- Location: Kempten, Rheinland-Pfalz, Germany
- Relevant deals: 1
- Stages: Series A, Seed, Series B
- Focus: Energy Storage, Renewable Energy, Energy

Christoph Ostermann is a Co-Founder at Sonnen.

## Heinz Senger-Weiss
- Type: Angel
- Location: Lauterach, Vorarlberg, Austria
- Relevant deals: 1
- Stages: Series A, Series B
- Focus: Energy, Logistics, E-Commerce

Heinz Senger-Weiss

## Udo Filzmaier
- Type: Angel
- Relevant deals: 1
- Stages: Angel, Series A
- Focus: Energy, Software, Manufacturing

Udo Filzmaier - Owner @ S.I.E SOLUTIONS

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co