# Hero funding: rounds and investors

> Hero has raised $26M across 6 rounds since 2018. Investors include BoxGroup, Refactor Capital and Y Combinator. Every round with its source.

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

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

# Who invested in *Hero*

6 rounds we have observed, with the 13 investors 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 Fitness Healthcare

Funding summary Updated 26 Oct 2026

**$26M** raised across 6 rounds since 2018, from 6 sources

**$12M** Series A **$1.6M** Round **$500K** Pre-seed **$12M** Series A

- **Latest round:** Venture May 2025
- **Biggest round:** $12M Series A · Jun 2024
- **Investors:** 13

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.

2019 2020 2021 2022 2023 2024 2025

**$12M** Series A

**$1.6M** Round

**$500K** Pre-seed

**?** Venture

**$12M** Series A

**?** Venture

- **First round:** Series A, $12M
- **Biggest round:** $12M
- **Usual gap between rounds:** 11 months

## The rounds

- **May 2025** Venture **Amount undisclosed** *3 new* *2 returning* [BoxGroup](https://millionrounds.com/fund/boxgroup) [Naval Ravikant](https://millionrounds.com/fund/naval-ravikant) [Company Ventures](https://millionrounds.com/fund/ag-ventures) [Refactor Capital](https://millionrounds.com/fund/refactor-capital) [Third Kind Venture Capital](https://millionrounds.com/fund/third-kind-venture-capital) Source recorded
- **Jun 2024** Series A **$12M** *4 new* [FJ Labs](https://millionrounds.com/fund/fj-labs) [Pareto Holdings](https://millionrounds.com/fund/pareto-holdings) [Valar Ventures](https://millionrounds.com/fund/valar-ventures-llc) [Paua Ventures](https://millionrounds.com/fund/paua-ventures) Source recorded
- **Jan 2023** Venture **Amount undisclosed** *1 new* [K Fund](https://millionrounds.com/fund/kfund) Source recorded
- **Aug 2022** Pre-seed **$500K** *1 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded
- **Jun 2019** Round **$1.6M** No investor was named in the report. Reported by Angelnews
- **Oct 2018** Series A **$12M** *4 new* [BoxGroup](https://millionrounds.com/fund/boxgroup) [Refactor Capital](https://millionrounds.com/fund/refactor-capital) Brainchild Holdings/ Naval Ravikant Third Kind Reported by FinSMEs

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series A** 2018 **Round** 2019 **Pre-seed** 2022 **Venture** 2023 **Series A** 2024 **Venture** 2025 [BoxGroup](https://millionrounds.com/fund/boxgroup) [Refactor Capital](https://millionrounds.com/fund/refactor-capital) [Y Combinator](https://millionrounds.com/fund/y-combinator) [FJ Labs](https://millionrounds.com/fund/fj-labs) [K Fund](https://millionrounds.com/fund/kfund) [Pareto Holdings](https://millionrounds.com/fund/pareto-holdings) [Naval Ravikant](https://millionrounds.com/fund/naval-ravikant) [Company Ventures](https://millionrounds.com/fund/ag-ventures) [Valar Ventures](https://millionrounds.com/fund/valar-ventures-llc) [Paua Ventures](https://millionrounds.com/fund/paua-ventures)

## Everyone who backed them

[BoxGroup](https://millionrounds.com/fund/boxgroup) VC firm **2** rounds

[Refactor Capital](https://millionrounds.com/fund/refactor-capital) VC firm **2** rounds

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[FJ Labs](https://millionrounds.com/fund/fj-labs) VC firm **1** round

[K Fund](https://millionrounds.com/fund/kfund) VC firm **1** round

[Pareto Holdings](https://millionrounds.com/fund/pareto-holdings) VC firm **1** round

[Naval Ravikant](https://millionrounds.com/fund/naval-ravikant) VC firm **1** round

[Company Ventures](https://millionrounds.com/fund/ag-ventures) VC firm **1** round

[Valar Ventures](https://millionrounds.com/fund/valar-ventures-llc) VC firm **1** round

[Paua Ventures](https://millionrounds.com/fund/paua-ventures) VC firm **1** round

[Third Kind Venture Capital](https://millionrounds.com/fund/third-kind-venture-capital) VC firm **1** round

Brainchild Holdings/ Naval Ravikant no record of our own yet **1** round

Third Kind 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=hero).

## Quick answers about Hero

### Who invested in Hero?

Hero's investors include BoxGroup, Refactor Capital, Y Combinator, FJ Labs and K Fund, and 8 more on record.

### How much has Hero raised?

Hero has raised $26M across 6 rounds since 2018. 2 rounds did not disclose an amount, so the total is a floor.

### When did Hero last raise?

Hero's most recent round was a Venture in May 2025.

### What was Hero's biggest round?

Hero's largest round on record is $12M (Series A), in Jun 2024.

### Who backed Hero first?

Hero's first round on record, in Oct 2018, was backed by BoxGroup, Refactor Capital and Brainchild Holdings/ Naval Ravikant and 1 others.

### What stage is Hero at?

Hero's latest named round is a Venture, in May 2025.

### Where is Hero based?

Hero is based in the United Kingdom.

## Companies like Hero

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

[**Coherence Neuro** $55M · Oct 2026](https://millionrounds.com/company/coherence-neuro)[**HydRegen** $12M · Oct 2026](https://millionrounds.com/company/hydregen)[**XRlabs** $8.4M · Oct 2026](https://millionrounds.com/company/xrlabs)[**OMass Therapeutics** $442M · Oct 2026](https://millionrounds.com/company/omass-therapeutics)[**CMR Surgical** $1.1B · Oct 2026](https://millionrounds.com/company/cmr-surgical)[**MintNeuro** $26M · Oct 2026](https://millionrounds.com/company/mintneuro)

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