An angel investor and operator angel based in Berlin, Germany, Fabian Siegel has 14 known investments, including Vouch Financial, Worklife, Contactually, Partender, Triplemint, AirPair, iwoca, Actio, Handy, Kreditech, Terasol and Videdressing.
Is Fabian Siegel a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
Contacts
Fabian Siegel portfolio companies (14)
- Vouch Financial
- Worklife
- Contactually
- Partender
- Triplemint
- AirPair
- iwoca
- Actio
- Handy
- Kreditech
- Terasol
- Videdressing
- Girlmeetdress
- Knotable
Affiliated funds' portfolios
Venture Partner at LifeX Ventures, whose known portfolio counts 22 companies
- 0G
- MITO AI
- PAACK
- NoTraffic
- Mytra
- Fraction AI
- Keychain
- InfiniteWatch
- Ohai.ai
- Sully.ai
- Trek Health
- Pensero AI
- and 10 more
Investor Profile
Founders in the listed sectors Consumer, FinTech, Healthcare and SaaS, and focus areas Biotech, Digital Health, EHR and Lending will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Seed and Series A rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Colleagues at LifeX Ventures
Inaki Berenguer
Managing Partner
United States
Amol Sarva
Founder + investor
New York City, United States
Lisa Kleinsorge
Venture Partner
San Francisco, United States
Veeral Mehta
Investor
New York, United States
Amalia Formoso
Investor
London, United Kingdom
Matthew Miller
Venture Partner
Cleveland, United States
Similar investors
Showing 20 of 99
Alexander Graubner-Müller
angel investor and operator angel
Hamburg, Germany
Sebastian Becker
General Partner
Zürich, Switzerland
Jared Slosberg
angel investor
Paris, France
Miguel Encarnacion
Managing Partner
Berlin, Germany
Felix Brosius
angel investor and operator angel
Hamburg, Germany
Kelly Ford
angel investor
Berlin, Germany
Yoni Goldwasser
Co-Founder & Managing Director, Angel Investor
Berlin, Germany
Volker Rofalski
angel investor and operator angel
Munich, Germany
Fabian Mohr
angel investor and operator angel
Cologne, Germany
Olivier Mathiot
Managing General Partner
France
Sven Fund
angel investor
Berlin, Germany
Christopher Muhr
angel investor and operator angel
Berlin, Germany
Marcus Erken
Founding Partner
Berlin, Germany
Stefan G.
angel investor and operator angel
London, United Kingdom
Michael Burnett
Managing Partner
London, United Kingdom
Theresa Wittemann
angel investor and operator angel
Berlin, Germany
Philipp Freise
Co-Head of European Private Equity
London, United Kingdom
Florian Gschwandtner
Member of startup300
Linz, Austria
Jan Kemper
operator angel
Berlin, Germany
Janosch Kühn
Investor
Berlin, Germany
Frequently asked questions
Who is Fabian Siegel?
Fabian Siegel is an angel investor and operator angel based in Berlin, Germany with 14 known investments on file, among them Vouch Financial, Worklife and Contactually. The sections above list the sectors, stages and firms attached to that record.
What does Fabian Siegel invest in?
Listed sectors include Consumer, FinTech, Healthcare and SaaS; listed focus areas include Biotech, Digital Health, EHR and Lending. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Fabian Siegel invest at?
The known deals of Fabian Siegel include Seed and Series A rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Fabian Siegel listed at?
Fabian Siegel is listed as Venture Partner at LifeX Ventures. 6 other people in the database share a firm with Fabian Siegel.
How do I contact Fabian Siegel?
An email address and a LinkedIn page are on file for Fabian Siegel. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal