Fritz Stiegler, Angel investor in Vienna is an active investor based in Vienna, Vienna. This profile covers what Fritz Stiegler backs, at which stage, and how founders can reach out in 2026.
Fritz Stiegler is an entrepreneur and angel investor focused on AI solutions and transformation, particularly in IT/SaaS scaling, GenAI, and energy & PropTech.
Fritz Stiegler invests in SaaS & Enterprise, Artificial Intelligence, Climate & Energy and PropTech & Real Estate, typically at Early Stage Venture.
- Investor type
- Angel
- Stages
- Early Stage Venture
- Invests in
- SaaS & EnterpriseArtificial IntelligenceClimate & EnergyPropTech & Real Estate
- Location
- Vienna, Vienna
- Typical check
- $500K
How to reach Fritz Stiegler
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About this profile
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Round Funded. "Fritz Stiegler." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/fritz-stiegler
Frequently Asked Questions
Who is Fritz Stiegler?
Fritz Stiegler, Angel investor in Vienna is an active investor based in Vienna, Vienna. Fritz Stiegler invests in SaaS & Enterprise, Artificial Intelligence, Climate & Energy and PropTech & Real Estate, typically at Early Stage Venture.
What does Fritz Stiegler invest in?
Fritz Stiegler invests in SaaS & Enterprise, Artificial Intelligence, Climate & Energy and PropTech & Real Estate, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Fritz Stiegler invest at?
Fritz Stiegler typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Fritz Stiegler's typical check size?
Fritz Stiegler typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.