# Thomas de Vlaam

> Thomas de Vlaam is a seed investor at Flagship Pioneering backing Health Care and Therapeutics. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Flagship Pioneering](https://shizune.co/investors/profile/flagship-ventures)
- Total investments: 3
- Last investment: Dec 2025
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/thomas-de-vlaam-54848674

Thomas de Vlaam is a seed investor at Flagship Pioneering focused on Health Care and Therapeutics. Thomas de Vlaam is the Co-Founder FL86 at Flagship Pioneering. Thomas de Vlaam attended University of Groningen.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 1 | 33% |
| Therapeutics | 1 | 33% |
| Biotechnology | 1 | 33% |
| Pharmaceutical | 1 | 33% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 67% |
| Pre-Seed | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Metri Bio | Metri Bio is a healthcare company that focused on endometrial diseases to improve lives of people. | $5M | Pre-Seed | Dec 02, 2025 |  |
| Skeletalis | Skeletalis is a biotechnology startup focused on developing next-generation precision medicines for musculoskeletal diseases, primarily osteoporosis. | $8M | Seed | Nov 17, 2025 |  |
| Thymmune Therapeutics | Thymmune Therapeutics is a biotechnology company developing a machine learning-driven thymic cell engineering platform to restore normal immune function in aging and disease. | $7M | Seed | Mar 01, 2023 |  |

3 of 3 investments shown.

## Co-investors
- [Slocum Wealth Management](https://shizune.co/investors/profile/slocum-wealth-management) — VC Fund, 2 deals together
- [age1](https://shizune.co/investors/profile/age-1) — VC Fund, 1 deal together
- [Arranta Bio](https://shizune.co/investors/profile/arranta-bio) — VC Fund, 1 deal together
- [KdT Ventures](https://shizune.co/investors/profile/kdt-ventures) — VC Fund, 1 deal together
- [NAVEC Investment Management](https://shizune.co/investors/profile/navec-investment-management) — VC Fund, 1 deal together
- [NYBC Ventures](https://shizune.co/investors/profile/nybc-ventures) — VC Fund, 1 deal together

## About Flagship Pioneering

VC Fund · Cambridge, United States

Flagship Pioneering conceives, creates, resources, and grows first-in-category ventures to transform human health and sustainability. The company accelerates Flagship Pioneering’s advances in biology, engineering, medicine, energy, and beyond. The firm harnesses science and entrepreneurialism to envision alternative futures, beginning withseemingly unreasonable propositions and navigating to transformational outcomes through an evolutionary methodology.Flagship Pioneering combines innovative capacity, entrepreneurial leadership, and professional capital management in a single enterprise that systematically produces first-in-category companies.

5 contacts available at Flagship Pioneering.

| Name | Title | Profile |
| --- | --- | --- |
| Geoffrey von Maltzahn | General Partner | https://shizune.co/investors/profile/geoffrey-von-maltzahn |
| Hari Pujar | Operating Partner | https://shizune.co/investors/profile/hari-pujar |
| Thomas de Vlaam | Co-Founder FL86 | https://shizune.co/investors/profile/thomas-de-vlaam |
| Avak Kahvejian | General Partner | https://shizune.co/investors/profile/avak-kahvejian |
| Bill Johnson | Vice President of Finance | https://shizune.co/investors/profile/bill-johnson |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Thomas de Vlaam invest in?

Thomas de Vlaam invests primarily in Health Care, Therapeutics and Biotechnology startups, most often at Seed and Pre-Seed stage. Most of the 3 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Thomas de Vlaam last invest?

The most recent investment recorded for Thomas de Vlaam closed in Dec 2025. 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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