Germany · 
Who invested in Solsten?
Solsten's investors include Alumni Ventures, Inventure, GFR Fund and Washington Harbour Partners Lp.
Germany · Venture startup
Who invested in Solsten
Funding summaryUpdated 26 Oct 2026
Undisclosedraised across 1 round since 2026, from 1 source
- Latest round
- VentureFeb 2026
- Investors
- 4
The rounds
- Feb 2026VentureAmount undisclosed
Source recorded
Funding filed with regulators
Solsten filed one raise, $21K in all. Filings say how much was sold and to how many investors; they never name the investors.
- Feb 2026$21KCrowdfunding
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 4 firms list Solsten as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Solsten
How much has Solsten raised?
Solsten has raised 1 round since 2026, none with a disclosed amount.
When did Solsten last raise?
Solsten's most recent round was a Venture in Feb 2026.
Who backed Solsten first?
Solsten's first round on record, in Feb 2026, was backed by Alumni Ventures, Inventure and GFR Fund and 1 others.
What stage is Solsten at?
Solsten's latest named round is a Venture, in Feb 2026.
Where is Solsten based?
Solsten is based in Germany.
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In the same sector, and raised in the last eighteen months.
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