# Spiber funding: rounds and investors

> Spiber has raised $67M across 2 rounds since 2014. Investors include Cool Japan. Every round with its source.

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

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

# Who invested in *Spiber*

2 rounds we have observed, with the one investor named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech Healthcare

Valuation: $1.2B, Mar 2026

Funding summary Updated 26 Oct 2026

**$67M** raised across 2 rounds since 2014, from 2 sources

**$23M** Venture **$44M** Round

- **Latest round:** Round, $44M Dec 2018
- **Step-up i:** 1.9×
- **Investors:** 1

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2015 2016 2017 2018

**$23M** Venture

**$44M** Round

- **First round:** Venture, $23M
- **Biggest round:** $44M
- **Between rounds:** 4.1 years

## The rounds

- **Dec 2018** Round **$44M** *1 new* Cool Japan Reported by Thebridge
- **Oct 2014** Venture **$23M** No investor was named in the report. From a historical funding record

## Everyone who backed them

Cool Japan no record of our own yet **1** round

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

## Also claim to have backed them

These 2 firms list Spiber 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.

[Daiwa Corporate Investment](https://millionrounds.com/fund/daiwa-corporate-investment) Corporate VC Per its own site

[Universal Materials Incubator Co. Ltd.](https://millionrounds.com/fund/universal-materials-incubator-co-ltd) VC firm Per its own site

## Quick answers about Spiber

### Who invested in Spiber?

Spiber's investors include Cool Japan.

### How much has Spiber raised?

Spiber has raised $67M across 2 rounds since 2014.

### When did Spiber last raise?

Spiber's most recent round was an Undisclosed round of $44M in Dec 2018.

### What was Spiber's biggest round?

Its most recent round, $44M in Dec 2018, is also its largest on record.

### Who backed Spiber first?

Spiber's first round on record, in Dec 2018, was backed by Cool Japan.

### What stage is Spiber at?

Spiber's latest named round is an Undisclosed round, in Dec 2018.

### Where is Spiber based?

Spiber is based in Japan.

## Companies like Spiber

In the same sector, and raised in the last eighteen months.

[**Kinish** $35M · Oct 2026](https://millionrounds.com/company/kinish)[**RadioNano Therapeutics** $955K · Oct 2026](https://millionrounds.com/company/radionano-therapeutics)[**AI Dock** $1.6M · Aug 2026](https://millionrounds.com/company/ai-dock)[**Dioseve** $12M · Jun 2026](https://millionrounds.com/company/dioseve)[**CareLink** $1.5M · Jun 2026](https://millionrounds.com/company/carelink)[**Neusignal Therapeutics** $40M · Jun 2026](https://millionrounds.com/company/neusignal-therapeutics)

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