# Grafenary funding: rounds and investors

> Grafenary has raised $1.5M across 1 round since 2026. Investors include Mizuho Capital, SBI Investment and Mobile Internet Capital. Every round with its source.

Source: https://millionrounds.com/company/grafenary (Millionrounds; every figure on the page links to its filing or article)

Japan · [Seed startup](https://millionrounds.com/companies)

# Who invested in *Grafenary*

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.

Chemicals & Materials

Raised 7 months ago

Funding summary Updated 26 Oct 2026

**$1.5M** raised across 1 round since 2026, from 1 source

- **Latest round:** Seed, $1.5M Apr 2026
- **Investors:** 5

See who backed them

## The rounds

- **Apr 2026** Seed **$1.5M** [Mizuho Capital](https://millionrounds.com/fund/mizuho-capital) [SBI Investment](https://millionrounds.com/fund/sbi-investment) [Mobile Internet Capital](https://millionrounds.com/fund/mobile-internet-capital-inc) [Deepcore](https://millionrounds.com/fund/deepcore) [Keio Innovation Initiative](https://millionrounds.com/fund/keio-innovation-initiative-inc) Source recorded

## Everyone who backed them

[Mizuho Capital](https://millionrounds.com/fund/mizuho-capital) VC firm **1** round

[SBI Investment](https://millionrounds.com/fund/sbi-investment) VC firm **1** round

[Mobile Internet Capital](https://millionrounds.com/fund/mobile-internet-capital-inc) VC firm **1** round

[Deepcore](https://millionrounds.com/fund/deepcore) VC firm **1** round

[Keio Innovation Initiative](https://millionrounds.com/fund/keio-innovation-initiative-inc) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=grafenary).

## Quick answers about Grafenary

### Who invested in Grafenary?

Grafenary's investors include Mizuho Capital, SBI Investment, Mobile Internet Capital, Deepcore and Keio Innovation Initiative.

### 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.

[**Esa** $7.3M · Oct 2026](https://millionrounds.com/company/esa)[**PathAhead** $853K · Apr 2026](https://millionrounds.com/company/pathahead)[**Sotas** $6.5M · Feb 2026](https://millionrounds.com/company/sotas)[**Phytolipid Technologies** $1.5M · Jun 2025](https://millionrounds.com/company/phytolipid-technologies)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**Adaptavate** $15M · Oct 2026](https://millionrounds.com/company/adaptavate)

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