# Miguel Sieler

> Miguel Sieler is a startup investor at Truffle Capital (Paris). See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Truffle Capital](https://shizune.co/investors/profile/truffle-capital)
- Location: Paris, France
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/miguel-sieler-61786b5a/

Miguel Sieler is a startup investor at Truffle Capital in Paris. Chairman of the portfolio companies Wittycell, a biotechnology company focused on the development of innovative vaccine adjuvants activating the immune system against infectious diseases and cancer and PlasmaPrime, a company specialised in advisory and training in blood transfusion worldwide.Served in various senior positions with Bayer Groupfrom 1975 to 2008 in Korea, Germany, Belgium, Brazil and France. Former CEO of Bayer Pharma France (1995 to 1998).Former Chairman of Bayer Group France (1998 to 2008).Board member of Nexity SA.Law school graduate from the University of Tubingen, Germany and from Institut d’Etudes Politiques de Paris, France.

## About Truffle Capital

VC Fund · Paris, France

Truffle Capital is an independent, European venture capital firm focused on disruptive technologies in IT (FinTech and InsurTech) and Life Sciences (BioTech and MedTech). Truffle Capital aims to support the creation and growth of young innovative companies with the potential to become tomorrow’s market leaders. Chaired by Patrick Kron, alongsidethe company’s founders and CEOs, Philippe Pouletty and Bernard-Louis Roques, Truffle Capital raised over $1 billion and has supported over 75 companies since its creation, in the digital technologies and life sciences sectors.At the end of 2017, Truffle Capital successfully completed the first close of its two new institutional funds, Truffle Financial Innovation Fund and Truffle BioMedTech Fund, as well as the first close of a fund dedicated to the French Reserve Fund (« Fonds de Réserve pour les Retraites » or « FRF »).On May 2019, Truffle Capital is a company of 24 professionals from various nationalities (French, Italian, English, Chinese…), passionated by the trade of financing innovation.

5 contacts available at Truffle Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Antoine Pau | Partner | https://shizune.co/investors/profile/antoine-pau |
| Faranaz Auliar | Philippe Pouletty Executive Assistant | https://shizune.co/investors/profile/faranaz-auliar |
| Jean-Claude Caducal | CEO Circle, Life Sciences | https://shizune.co/investors/profile/jean-claude-caducal |
| Michel Finance | Venture Partner | https://shizune.co/investors/profile/michel-finance |
| Miguel Sieler | Venture Partner | https://shizune.co/investors/profile/miguel-sieler |

## FAQ

### 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co