Retein
Retein adapts Nature’s finest separation for use in the recovery of high purity raw materials like lithium, nutrients, and pure water from any accessible water.
Retein has raised €1.0M across 1 funding round from 4 investors, most recently a round in Apr 2023. Based in Gothenburg, Sweden; active in Cleantech. Data as of 28 Oct 2026.
Gothenburg, Swedenwww.retein.tech ↗
Total raised
€1.0M
€1,000,000
Funding rounds
1
Investors
4
distinct backers
Active since
2023-04
latest 2023-04
Funding by year
EUR raised per yearRetein — funding by year — interactive chart.
Data table
| Retein — funding by year | |
|---|---|
| 2023 | €1.0M |
Signals
High confidenceRaise-next likelihood6
base rate 30% for Other
- ▼ Past typical raise window
- ▼ Low backer re-investment
Timing: overdue vs cohort gap · momentum unknown. Funding-only estimates, not predictions and not investment advice — see signals.
Funding rounds
1 round| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2023-04-21 | Other | €1.0M | Butterfly Ventures,Chalmers Ventures,Industrifonden,Navigare Ventures | View deal → |