Japan · 
Who invested in OpenHeart?
OpenHeart's investors include IVC, FFG Venture Business Partners and Mizuho Capital.
2026
?Venture$1.4MSeed
Japan · Seed startup
Who invested in OpenHeart
Funding summaryUpdated 26 Oct 2026
$1.4Mraised across 2 rounds since 2025, from 2 sources
- Latest round
- Seed, $1.4MMay 2026
- Investors
- 3
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture Sept 2025
- Biggest round
- $1.4M Seed · May 2026
- Between rounds
- 8 months from the last two
The rounds
- May 2026
- Sept 2025
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.
Quick answers about OpenHeart
How much has OpenHeart raised?
OpenHeart has raised $1.4M across 2 rounds since 2025. One round did not disclose an amount, so the total is a floor.
When did OpenHeart last raise?
OpenHeart's most recent round was a Seed of $1.4M in May 2026.
What was OpenHeart's biggest round?
Its most recent round, $1.4M in May 2026, is also its largest on record.
Who backed OpenHeart first?
OpenHeart's first round on record, in Sept 2025, was backed by IVC and FFG Venture Business Partners.
What stage is OpenHeart at?
OpenHeart's latest named round is a Seed, in May 2026.
Where is OpenHeart based?
OpenHeart is based in Japan.
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