Japan · 
Who invested in Grafenary?
Grafenary's investors include Mizuho Capital, SBI Investment, Mobile Internet Capital, Deepcore and Keio Innovation Initiative.
Japan · Seed startup
Who invested in Grafenary
Funding summaryUpdated 26 Oct 2026
$1.5Mraised across 1 round since 2026, from 1 source
- Latest round
- Seed, $1.5MApr 2026
- Investors
- 5
The rounds
- Apr 2026Seed$1.5M
Source recorded
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about Grafenary
How much has Grafenary raised?
Grafenary has raised $1.5M across 1 round since 2026.
When did Grafenary last raise?
Grafenary's most recent round was a Seed of $1.5M in Apr 2026.
What was Grafenary's biggest round?
Its most recent round, $1.5M in Apr 2026, is also its largest on record.
Who backed Grafenary first?
Grafenary's first round on record, in Apr 2026, was backed by Mizuho Capital, SBI Investment and Mobile Internet Capital and 2 others.
What stage is Grafenary at?
Grafenary's latest named round is a Seed, in Apr 2026.
Where is Grafenary based?
Grafenary is based in Japan.
Companies like Grafenary
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.