# Mark Gem

> Mark Gem is a startup investor at Clearstream. See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Clearstream](https://shizune.co/investors/profile/clearstream-2)
- Last updated: Aug 2026

Mark Gem is a startup investor at Clearstream.

## About Clearstream

VC Fund · Luxembourg, Luxembourg

Clearstream is an important player in the securities services industry with consistently high credit ratings.As an international central securities depository (ICSD) based in Luxembourg, we provide post-trade infrastructure and securities services for the international market and 56 domestic markets worldwide, with 2,500 customers in 110countries.

3 contacts available at Clearstream.

| Name | Title | Profile |
| --- | --- | --- |
| Bill Durfee | Technical Recruiter and Co-Founder | https://shizune.co/investors/profile/bill-durfee-705b |
| Mark Gem | Chairperson of the Risk Comittee | https://shizune.co/investors/profile/mark-gem |
| Richard Jones | Head of Fund Center Digital | https://shizune.co/investors/profile/richard-jones-a143 |

## 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