Irrus Investments is Ireland's largest business angel investment syndicate, providing equity funding and mentorship to early-stage technology and life sciences companies across the island of Ireland.
53% of their portfolio is in Healthcare. Average disclosed round size is $8.0M (across 3 rounds with reported amounts).
Portfolio
11
Fund Size
—
Top Stage
Unknown
Last 12 Mo
0
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
15 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Deciphex | Series C | — | Jan 2025 |
 Ovagen | Series A | — | Jan 2023 |
 SymPhysis Medical | Unknown | — | Jan 2023 |
| Deciphex | Series B | $11.5M | May 2022 |
| SymPhysis Medical | Unknown | — | Jan 2022 |
| DDECIPHEX LIMITED | Series B | — | Jan 2022 |
| SSigrid Therapeutics | Unknown | $8.4M | Jan 2021 |
 AventaMed | Unknown | — | Jan 2017 |
| AventaMed | Unknown | — | Jan 2015 |
| EEmbo Medical | Seed | — | Oct 2014 |
| EEmbo Medical | Seed | — | Jan 2014 |
 Bluedrop Medical | Unknown | — | — |
 Gasgon Medical | Seed | — | — |
 Qualus | Unknown | — | — |
| PPROVERUM MEDICAL | Seed | $4.2M | — |
Top Co-Investors
Enterprise Ireland9 shared
Claret Capital Partners2 shared
Atlantic Bridge1 shared
Elkstone1 shared
Molten Ventures1 shared
Clearlake Capital Group1 shared
Cambridge Capital1 shared
Joyance Partners1 shared
Seroba Life Sciences1 shared
Novartis Venture Fund1 shared
Last updated: 8 September 2026