# ProtoStar funding: rounds and investors

> ProtoStar has raised $821K across 1 round since 2023. Investors include Nippon Venture Capital. Every round with its source.

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

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

# Who invested in *ProtoStar*

One round we have observed, with the one investor 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.

Telecoms

Funding summary Updated 26 Oct 2026

**$821K** raised across 1 round since 2023, from 1 source

- **Latest round:** Venture, $821K Sept 2023
- **Investors:** 1

See who backed them

## The rounds

- **Sept 2023** Venture **$821K** [Nippon Venture Capital](https://millionrounds.com/fund/nippon-venture-capital) Source recorded

## Everyone who backed them

[Nippon Venture Capital](https://millionrounds.com/fund/nippon-venture-capital) Corporate VC **1** round

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

## Quick answers about ProtoStar

### Who invested in ProtoStar?

ProtoStar's investors include Nippon Venture Capital.

### How much has ProtoStar raised?

ProtoStar has raised $821K across 1 round since 2023.

### When did ProtoStar last raise?

ProtoStar's most recent round was a Venture of $821K in Sept 2023.

### What was ProtoStar's biggest round?

Its most recent round, $821K in Sept 2023, is also its largest on record.

### Who backed ProtoStar first?

ProtoStar's first round on record, in Sept 2023, was backed by Nippon Venture Capital.

### What stage is ProtoStar at?

ProtoStar's latest named round is a Venture, in Sept 2023.

### Where is ProtoStar based?

ProtoStar is based in Japan.

## Companies like ProtoStar

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

[**TruAgents** $3.4M · Oct 2026](https://millionrounds.com/company/truagents)[**Qualitate** $32M · Oct 2026](https://millionrounds.com/company/qualitate)[**Salience Labs** $169M · Oct 2026](https://millionrounds.com/company/salience-labs)[**Golbriak Space** $4.5M · Oct 2026](https://millionrounds.com/company/golbriak-space)[**Clockout** $5.5M · Oct 2026](https://millionrounds.com/company/clockout)[**Hubble Network** $270M · Sept 2026](https://millionrounds.com/company/hubble-network)

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