Germany · 
Who invested in Onsai GmbH?
Onsai GmbH's investors include SI Ventures, Willem van der Zee and Wolfgang M. Neumann. SI Ventures led its latest round.
Germany · Growth startup
Who invested in Onsai GmbH
One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$1.2Mraised across 1 round since 2025, from 1 source
- Latest round
- Growth, $1.2MAug 2025
- Led by
- SI Ventures
- Investors
- 3 (1 led)
The rounds
- Aug 2025
Everyone who backed them
Willem van der ZeeGrowth equity1round
Wolfgang M. NeumannGrowth equity1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Onsai GmbH
How much has Onsai GmbH raised?
Onsai GmbH has raised $1.2M across 1 round since 2025.
When did Onsai GmbH last raise?
Onsai GmbH's most recent round was a Growth of $1.2M in Aug 2025, led by SI Ventures.
What was Onsai GmbH's biggest round?
Its most recent round, $1.2M in Aug 2025, is also its largest on record.
Who backed Onsai GmbH first?
Onsai GmbH's first round on record, in Aug 2025, was backed by SI Ventures, Willem van der Zee and Wolfgang M. Neumann.
What stage is Onsai GmbH at?
Onsai GmbH's latest named round is a Growth, in Aug 2025.
Where is Onsai GmbH based?
Onsai GmbH is based in Germany.
Who led Onsai GmbH's rounds?
SI Ventures led the Growth in 2025.
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