# Protostars funding: rounds and investors

> Protostars has raised $326K across 2 rounds since 2024. Investors include Enterprise Ireland. Every round with its source.

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

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

# Who invested in *Protostars*

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.

Cybersecurity

Funding summary Updated 26 Oct 2026

**$326K** raised across 2 rounds since 2024, from 2 sources

- **Latest round:** Venture Oct 2025
- **Biggest round:** $326K Pre-seed · Oct 2024
- **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.

2025

**$326K** Pre-seed

**?** Venture

- **First round:** Pre-seed, $326K
- **Biggest round:** $326K
- **Between rounds:** 12 months

## The rounds

- **Oct 2025** Venture **Amount undisclosed** *1 returning* [Enterprise Ireland](https://millionrounds.com/fund/enterprise-ireland) Source recorded
- **Oct 2024** Pre-seed **$326K** *1 new* [Enterprise Ireland](https://millionrounds.com/fund/enterprise-ireland) Source recorded

## Everyone who backed them

[Enterprise Ireland](https://millionrounds.com/fund/enterprise-ireland) Government **2** rounds

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

## Quick answers about Protostars

### Who invested in Protostars?

Protostars's investors include Enterprise Ireland.

### How much has Protostars raised?

Protostars has raised $326K across 2 rounds since 2024. One round did not disclose an amount, so the total is a floor.

### When did Protostars last raise?

Protostars's most recent round was a Venture in Oct 2025.

### What was Protostars's biggest round?

Protostars's largest round on record is $326K (Pre-seed), in Oct 2024.

### Who backed Protostars first?

Protostars's first round on record, in Oct 2024, was backed by Enterprise Ireland.

### What stage is Protostars at?

Protostars's latest named round is a Venture, in Oct 2025.

### Where is Protostars based?

Protostars is based in Ireland.

## Companies like Protostars

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

[**Mirror Security** $2.5M · Dec 2025](https://millionrounds.com/company/mirror-security)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Blackwall** $162M · Oct 2026](https://millionrounds.com/company/blackwall)[**Opsin** $21M · Oct 2026](https://millionrounds.com/company/opsin)[**Harmonic Security** $68M · Oct 2026](https://millionrounds.com/company/harmonic-security)[**Reach Security** $60M · Oct 2026](https://millionrounds.com/company/reach-security)

## Find investors like these

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