# Rare funding: rounds and investors

> Rare has raised $6.0M across 1 round since 2024. Investors include Minderoo Foundation, Pershing Square Foundation and Rumah Group. Every round with its source.

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

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

# Who invested in *Rare*

One round we have observed, with the 7 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.

Climate Tech ESG & Impact

Funding summary Updated 26 Oct 2026

**$6.0M** raised across 1 round since 2024, from 1 source

- **Latest round:** Round, $6.0M Sept 2024
- **Investors:** 7

See who backed them

## The rounds

- **Sept 2024** Round **$6.0M** [Minderoo Foundation](https://millionrounds.com/fund/minderoo-foundation) [Pershing Square Foundation](https://millionrounds.com/fund/pershing-square-foundation) [Rumah Group](https://millionrounds.com/fund/rumah-group) [Walton Family Foundation](https://millionrounds.com/fund/walton-family-foundation) [Builders Initiative](https://millionrounds.com/fund/builders-initiative) [Milkywire](https://millionrounds.com/fund/milkywire) [UK DEFRA through the Ocean Risk and Resilience Action Alliance](https://millionrounds.com/fund/uk-defra-through-the-ocean-risk-and-resilience-action-allian) Reported by Firms' own news pages

## Founders and team

From Rare's own website: 1 on the team.

- **Isabel Diez-Sevilla** Business Insights & Analytics Manager, Daiichi Sankyo UK

## The exit

Exit Buyer Price When

Acquired [Microsoft](https://millionrounds.com/fund/microsoft) $337M Sept 2002

From historical deal records. Wrong? [Tell us](https://millionrounds.com/corrections?slug=rare).

## Everyone who backed them

[Minderoo Foundation](https://millionrounds.com/fund/minderoo-foundation) VC firm **1** round

[Pershing Square Foundation](https://millionrounds.com/fund/pershing-square-foundation) Institutional LP **1** round

[Rumah Group](https://millionrounds.com/fund/rumah-group) Family office **1** round

[Walton Family Foundation](https://millionrounds.com/fund/walton-family-foundation) Family office **1** round

[Builders Initiative](https://millionrounds.com/fund/builders-initiative) Institutional LP **1** round

[Milkywire](https://millionrounds.com/fund/milkywire) Investment firm **1** round

[UK DEFRA through the Ocean Risk and Resilience Action Alliance](https://millionrounds.com/fund/uk-defra-through-the-ocean-risk-and-resilience-action-allian) Investment firm **1** round

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

## Also claim to have backed them

This firm lists Rare as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[The Meloy Fund](https://millionrounds.com/fund/the-meloy-fund) VC firm Per its own site

## Quick answers about Rare

### Who invested in Rare?

Rare's investors include Minderoo Foundation, Pershing Square Foundation, Rumah Group, Walton Family Foundation and Builders Initiative, and 2 more on record.

### How much has Rare raised?

Rare has raised $6.0M across 1 round since 2024.

### When did Rare last raise?

Rare's most recent round was an Undisclosed round of $6.0M in Sept 2024.

### What was Rare's biggest round?

Its most recent round, $6.0M in Sept 2024, is also its largest on record.

### Who backed Rare first?

Rare's first round on record, in Sept 2024, was backed by Minderoo Foundation, Pershing Square Foundation and Rumah Group and 4 others.

### What stage is Rare at?

Rare's latest named round is an Undisclosed round, in Sept 2024.

### Where is Rare based?

Rare is based in the United States.

## Companies like Rare

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

[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Kodama** $7.0M · Oct 2026](https://millionrounds.com/company/kodama)[**Stand** $105M · Oct 2026](https://millionrounds.com/company/stand)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app