Klaus Mueller
Angel investor in Vienna
Vienna, Vienna
Klaus Mueller, Angel investor in Vienna is an active investor based in Vienna, Vienna. This profile covers what Klaus Mueller backs, at which stage, and how founders can reach out in 2026.
Mr. Klaus Müller is an Angel Investor. He co-founded JENTIS. He served as Chief Executive Officer and Partner at 123 Sonography. He served as the Advisor and Board Member at Mooci. He joined 123sonography in 2015 as a partner and has taken over the CEO position from Thomas Binder. Being an Ex-Googler with more than 20 years of experience in the web and online marketing business, he is responsible for leveraging the company to the next level - "Transform Medical Education" by using best-in-class web technologies and by his "Google Moonshot Spirit".
- Investor type
- Angel
- Stages
- Early Stage Venture
- Invests in
- Artificial IntelligenceFintechSaaS & Enterprise
- Location
- Vienna, Vienna
- Typical check
- $500K
- Past investments
- 3
Notable investments
How to reach Klaus Mueller
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Cite this page
Round Funded. "Klaus Mueller." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/klaus-mueller-182894-5
Frequently Asked Questions
What does Klaus Mueller invest in?
Klaus Mueller invests in Artificial Intelligence, Fintech and SaaS & Enterprise, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Klaus Mueller invest at?
Klaus Mueller typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Klaus Mueller's typical check size?
Klaus Mueller 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.
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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.