# Efferon funding rounds and investors

As of 10 Nov 2026, Efferon has raised $4.8M across 1 verified round on record (amounts in other currencies converted to USD), plus 1 expected raise not yet closed; latest: €4.3M seed round, announced 10 Nov 2026.

Provider of hemoadsorption devices designed to remove endotoxins and excessive inflammatory mediators from the bloodstream

Website: https://us.efferon.com  
Headquarters: Villach, Austria  
Page: https://fireround.dev/companies/efferon

## Verified rounds

| Announced | Round | Amount | Lead investors | Other investors | Sources |
| --- | --- | --- | --- | --- | --- |
| 2026-11-10 | Seed | €4.3M | not stated | none named | [tech.eu](https://tech.eu/2026/11/10/efferon-raises-eur43m-to-expand-sepsis-treatment-technology-into-new-markets), [finsmes.com](https://www.finsmes.com/2026/11/efferon-raises-4-3m-in-seed-funding.html) |

Source: Fireround (https://fireround.dev), an open-source funding feed. Each round is checked against the pages listed with it.