# Ruby funding: rounds and investors

> Ruby has raised $2.9M across 1 round since 2021. Investors include SixThirty and 25madison. Every round with its source.

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

[Seed startup](https://millionrounds.com/companies)

# Who invested in *Ruby*

One round we have observed, with the 2 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.

Healthcare

Funding summary Updated 26 Oct 2026

**$2.9M** raised across 1 round since 2021, from 1 source

- **Latest round:** Seed, $2.9M May 2021
- **Investors:** 2

See who backed them

## The rounds

- **May 2021** Seed **$2.9M** [SixThirty](https://millionrounds.com/fund/sixthirty) [25madison](https://millionrounds.com/fund/25madison) Source recorded

## Everyone who backed them

[SixThirty](https://millionrounds.com/fund/sixthirty) Accelerator **1** round

[25madison](https://millionrounds.com/fund/25madison) Accelerator **1** round

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

## Quick answers about Ruby

### Who invested in Ruby?

Ruby's investors include SixThirty and 25madison.

### How much has Ruby raised?

Ruby has raised $2.9M across 1 round since 2021.

### When did Ruby last raise?

Ruby's most recent round was a Seed of $2.9M in May 2021.

### What was Ruby's biggest round?

Its most recent round, $2.9M in May 2021, is also its largest on record.

### Who backed Ruby first?

Ruby's first round on record, in May 2021, was backed by SixThirty and 25madison.

### What stage is Ruby at?

Ruby's latest named round is a Seed, in May 2021.

## Companies like Ruby

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

[**Cloverleaf Bio** $33M · Sept 2026](https://millionrounds.com/company/cloverleaf-bio)[**Hera** $29M · Jun 2026](https://millionrounds.com/company/hera)[**Musely** $360M · May 2026](https://millionrounds.com/company/musely)[**Predictheon** $3.1M · Apr 2026](https://millionrounds.com/company/predictheon)[**Oricell Therapeutics** $180M · Apr 2026](https://millionrounds.com/company/oricell-therapeutics)[**Dosentrx** $1.8M · Mar 2026](https://millionrounds.com/company/dosentrx)

## Find investors like these

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