Japan · 
Who invested in Idein?
Idein's investors include Global Brain Corporation, SMBC Venture Capital, SBI Investment, Incubate Fund and Sony Innovation Fund.
Japan · Venture startup
Who invested in Idein
One round we have observed, with the 5 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
Undisclosedraised across 1 round since 2025, from 1 source
- Latest round
- VentureJul 2025
- Investors
- 5
The rounds
- Jul 2025VentureAmount undisclosed
Source recorded
Everyone who backed them
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Also claim to have backed them
This firm lists Idein as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Idein
How much has Idein raised?
Idein has raised 1 round since 2025, none with a disclosed amount.
When did Idein last raise?
Idein's most recent round was a Venture in Jul 2025.
Who backed Idein first?
Idein's first round on record, in Jul 2025, was backed by Global Brain Corporation, SMBC Venture Capital and SBI Investment and 2 others.
What stage is Idein at?
Idein's latest named round is a Venture, in Jul 2025.
Where is Idein based?
Idein is based in Japan.
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