Fabian Siegel
Angel Investor · at GFC Rocket Internet
New York, United States
Fabian Siegel is a serial entrepreneur, board member and investor who has founded and led several successful companies in the fields of fintech, online marketing, e-commerce and food innovation.
- Total investments:
- 3
- Last investment:
- Lead investor:
- 67%
Last updated:
For AI agents: llms.txt
Industries Fabian Siegel invests in
Stages Fabian Siegel invests in
Countries Fabian Siegel invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Angel
- $1.4M–$1.4M
Investment Focus
Industry
- FinTech 1 (33%)
- Finance 1 (33%)
- Communities 1 (33%)
- Mobile Apps 1 (33%)
- Social Network 1 (33%)
Stage
- Seed 1 (33%)
- Angel 1 (33%)
Country
- Estonia 1 (33%)
- Germany 1 (33%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Actio access to professionals in practically any area, including career, relationships, finance, cuisine, nutrition, sports, yoga, styling, and legal advice. Actio allows users to book private meetings for advice. Actio was established in 2019 in Berlin, Germany. | $10.4M / Seed / Dec 16, 2020 | ||
| Bondora was founded over 11 years ago in the height of the global financial crisis. This was a time when the world was in need of fair finance and a technological revolution. Today, Bondora has served over 120,000 customers who’ve earned more than €40M in interest. We make sure everyone can access the world of investing and earn a reliable netreturn, without all the complexities. | $1.4M / Angel / Nov 01, 2013 | ||
| See all 3 investments → | |||
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FAQ
What does Fabian Siegel invest in?
Fabian Siegel invests primarily in FinTech, Finance and Communities startups, most often at Seed and Angel stage. Most of the 3 investments tracked by Shizune back companies in Estonia. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Fabian Siegel's check size?
Fabian Siegel typically joins rounds of $1.4M–$1.4M at Angel. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Fabian Siegel participates in.
How do I contact Fabian Siegel?
Public channels for Fabian Siegel include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Fabian Siegel last invest?
The most recent investment recorded for Fabian Siegel closed in Dec 2020. Shizune tracks 3 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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