United States · 
Who invested in Oishii?
Oishii's investors include Mizuho Corporate Bank and Sony Innovation Fund.
20252026
$143MSeries B?Venture$150MSeries C
United States · Series C startup
Who invested in Oishii
Funding summaryUpdated 26 Oct 2026
$293Mraised across 3 rounds since 2024, from 3 sources
$143MSeries B$150MSeries C
- Latest round
- Series C, $150MMay 2026
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $143M Feb 2024
- Biggest round
- $150M Series C · May 2026
- Usual gap between rounds
- 21 months the median of 2
The rounds
- May 2026
- Dec 2025
- Feb 2024
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Oishii 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 Oishii
How much has Oishii raised?
Oishii has raised $293M across 3 rounds since 2024. One round did not disclose an amount, so the total is a floor.
When did Oishii last raise?
Oishii's most recent round was a Series C of $150M in May 2026.
What was Oishii's biggest round?
Its most recent round, $150M in May 2026, is also its largest on record.
Who backed Oishii first?
Oishii's first round on record, in Dec 2025, was backed by Mizuho Corporate Bank and Sony Innovation Fund.
What stage is Oishii at?
Oishii's latest named round is a Series C, in May 2026.
Where is Oishii based?
Oishii is based in the United States.
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