# Fabian Siegel

> Fabian Siegel is a seed investor at LifeX Ventures (New York) backing FinTech and Finance. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [LifeX Ventures](https://shizune.co/investors/profile/lifex-ventures)
- Location: New York, United States
- Total investments: 3
- Last investment: Nov 2013
- Lead investor: 67%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/fabiansiegel
- X (Twitter): http://twitter.com/fabiansiegel
- Website: https://x.com/fabiansiegel
- Facebook: https://www.facebook.com/fabian.siegel

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.

## Round sizes

| Stage | Round size |
| --- | --- |
| Angel | $1.4M–$1.4M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| FinTech | 1 | 33% |
| Finance | 1 | 33% |
| Consumer Lending | 1 | 33% |
| Wealth Management | 1 | 33% |
| Financial Services | 1 | 33% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 33% |
| Angel | 1 | 33% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Estonia | 1 | 33% |
| Germany | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Actio | 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. | $9M | Seed | Dec 16, 2020 |  |
| Bondora | 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 |  |
| Bondora | 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 |  |

3 of 3 investments shown.

## Co-investors
- [Pinto Ventures](https://shizune.co/investors/profile/pinto-ventures) — VC Fund, 2 deals together
- [NAP](https://shizune.co/investors/profile/cavalry-ventures) — VC Fund, 1 deal together
- [Discovery Ventures](https://shizune.co/investors/profile/discovery-ventures-7af5) — VC Fund, 1 deal together
- [GFC Rocket Internet](https://shizune.co/investors/profile/gfc-rocket-internet) — VC Fund, 1 deal together
- [Global Founders Capital](https://shizune.co/investors/profile/global-founders-capital) — VC Fund, 1 deal together
- [Heal Capital](https://shizune.co/investors/profile/heal-capital) — VC Fund, 1 deal together

## About LifeX Ventures

VC Fund · New York, United States

LifeX Ventures is a venture capital firm that supports scientists and entrepreneurs launching technologies that extend the longevity of people and planet. The firm prefers to invest in various sectors, including Web3, payments, data, security, APIs, marketplaces, analytics, neural networks, transportation and logistics, food and agriculture,medicine, energy, genomics and synthetic biology, nootropics, and science-related industries.

5 contacts available at LifeX Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Fabian Siegel | Venture Partner | https://shizune.co/investors/profile/fabian-siegel |
| Veeral Mehta | Associate/Investor | https://shizune.co/investors/profile/veeral-mehta-f467 |
| Amalia Formoso | CFO | https://shizune.co/investors/profile/amalia-formoso |
| Amol Sarva | Managing Partner | https://shizune.co/investors/profile/amol-sarva |
| Fernando Lopez | Financial Controller | https://shizune.co/investors/profile/fernando-lopez-24e4 |

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## FAQ

### What does Fabian Siegel invest in?

Fabian Siegel invests primarily in FinTech, Finance and Consumer Lending 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.

### When did Fabian Siegel last invest?

The most recent investment recorded for Fabian Siegel closed in Nov 2013. 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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