Pureos Bioventures is a Swiss-based venture capital firm that invests exclusively in private innovative drug development companies, with an emphasis on novel biological drugs and emerging modalities such as nucleic acid, cell, and gene therapies.
54% of their portfolio is in Biotech & Life Sciences. Deal activity decreased year-over-year (1 deals in the last 12 months vs 2 prior). Average disclosed round size is $89.4M (across 8 rounds with reported amounts).
Portfolio
23
Fund Size
$205M
Top Stage
Series A
Last 12 Mo
1
Team
DL
Dr. Lars Nieba
Venture Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
28 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Adcytherix | Series A | — | Oct 2025 |
 Callio Therapeutics | Series A | $187M | Mar 2025 |
 AnaCardio | Series A | $19M | Jan 2025 |
 Citryll | Series B | — | Dec 2024 |
 Memo Therapeutics | Series C | — | May 2024 |
| MMemo Therapeutics AG | Series C | — | May 2024 |
| MMemo Therapeutics AG | Series C | — | Nov 2023 |
| AAriceum Therapeutics | Unknown | — | Apr 2023 |
 Minervax | Series B | — | Dec 2022 |
 Tridek-One | Series A | — | Sep 2022 |
| TTridek-One | Unknown | — | Sep 2022 |
 ImCheck | Series C | — | Jun 2022 |
 Ariceum | Series A | — | Jun 2022 |
| AAriceum Therapeutics | Series A | — | Jun 2022 |
 Engimmune Therapeutics | Seed | — | May 2022 |
| AAriceum Therapeutics | Series A | — | Jan 2022 |
 Araris Biotech | Unknown | $24M | Jan 2022 |
 Hummingbird Bioscience | Series C | $125M | May 2021 |
 Corlieve Therapeutics | Seed | — | Nov 2020 |
| Araris Biotech | Seed | — | Oct 2020 |
| AAraris | Seed | — | Oct 2020 |
 Vico Therapeutics | Series A | $31M | Jul 2020 |
| IImCheck Therapeutics | Series C | — | Dec 2019 |
 NovaGo Therapeutics | Series A | — | Mar 2019 |
| TTridek-One | Unknown | — | Jan 2019 |
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Top Co-Investors
Kurma Partners7 shared
Bpifrance6 shared
Andera Partners5 shared
EQT Life Sciences5 shared
Idinvest Partners5 shared
HealthCap4 shared
Polaris Partners4 shared
SEEDS Capital4 shared
EDBI4 shared
Frazier Healthcare Partners4 shared
Schroders Capital4 shared
Redalpine4 shared
AdBio partners3 shared
Bioqube Ventures3 shared
Novo Holdings A/S3 shared
Novo Capital3 shared
Verve Ventures3 shared
Earlybird Venture Capital3 shared
Vi Partners3 shared
4BIO Capital3 shared
Last updated: 8 September 2026