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. Our patented molecular separation technology was developed at Chalmers University of Technology with the purpose of accelerating the transition towards a resource-efficient and sustainable world from the bottom up. We transform how raw materials are supplied to enable convenient access to sustainably sourced materials of high quality. Contact us at: contact@retein.tech
Location: Sweden, Gothenburg
Employees: 1-10
Total raised: $1.1M
Founded date: 2019
Investors 2
| Date | Name | Website |
| 03.12.2025 | CVX Ventur... | cvx.vc |
| 26.04.2023 | Chalmers V... | chalmersve... |
Funding Rounds 1
| Date | Series | Amount | Investors |
| 20.04.2023 | - | $1.1M | - |
Mentions in press and media 3
| Date | Title | Description |
| 20.04.2023 | Finland’s Butterfly Ventures participates in a €970k round for Swedish biotech Retein | Finland’s Butterfly Ventures participates in a €970k round for Swedish biotech Retein 20 April, 2023, 17:43 Mariia Denysiuk --> --> --> -->--> --> --> --> --> --> --> --> --> The Gothenburg-based co... |
| 20.04.2023 | Retein closes SEK 11 million financing round to enable efficient recovery of clean water | The Swedish company Retein that has developed a patented technology for water separation today announced the successful closing of their latest financing round. The company is being backed by Industrifonden, Butterfly Ventures, Navigare Ven... |
| - | Retein | “retein” |