# Sphere Bio funding: rounds and investors

> Sphere Bio has raised $41M across 1 round since 2021. Investors include Sofinnova Partners, Parkwalk and Amadeus Capital Partners. Every round with its source.

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

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

# Who invested in *Sphere Bio*

One round we have observed, with the 5 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.

Biotech

Funding summary Updated 26 Oct 2026

**$41M** raised across 1 round since 2021, from 1 source

- **Latest round:** Venture, $41M Oct 2021
- **Investors:** 5

See who backed them

## The rounds

- **Oct 2021** Venture **$41M** [Sofinnova Partners](https://millionrounds.com/fund/sofinnova-partners) [Parkwalk](https://millionrounds.com/fund/parkwalk) [Amadeus Capital Partners](https://millionrounds.com/fund/amadeus-capital-partners) [Redmile Group](https://millionrounds.com/fund/redmile-group) [24 Haymarket](https://millionrounds.com/fund/24haymarket) Source recorded

## Everyone who backed them

[Sofinnova Partners](https://millionrounds.com/fund/sofinnova-partners) VC firm **1** round

[Parkwalk](https://millionrounds.com/fund/parkwalk) VC firm **1** round

[Amadeus Capital Partners](https://millionrounds.com/fund/amadeus-capital-partners) VC firm **1** round

[Redmile Group](https://millionrounds.com/fund/redmile-group) VC firm **1** round

[24 Haymarket](https://millionrounds.com/fund/24haymarket) Angel network **1** round

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

## Quick answers about Sphere Bio

### Who invested in Sphere Bio?

Sphere Bio's investors include Sofinnova Partners, Parkwalk, Amadeus Capital Partners, Redmile Group and 24 Haymarket.

### How much has Sphere Bio raised?

Sphere Bio has raised $41M across 1 round since 2021.

### When did Sphere Bio last raise?

Sphere Bio's most recent round was a Venture of $41M in Oct 2021.

### What was Sphere Bio's biggest round?

Its most recent round, $41M in Oct 2021, is also its largest on record.

### Who backed Sphere Bio first?

Sphere Bio's first round on record, in Oct 2021, was backed by Sofinnova Partners, Parkwalk and Amadeus Capital Partners and 2 others.

### What stage is Sphere Bio at?

Sphere Bio's latest named round is a Venture, in Oct 2021.

### Where is Sphere Bio based?

Sphere Bio is based in the United Kingdom.

## Companies like Sphere Bio

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

[**HydRegen** $12M · Oct 2026](https://millionrounds.com/company/hydregen)[**OMass Therapeutics** $442M · Oct 2026](https://millionrounds.com/company/omass-therapeutics)[**CMR Surgical** $1.1B · Oct 2026](https://millionrounds.com/company/cmr-surgical)[**Living Optics** $61M · Oct 2026](https://millionrounds.com/company/living-optics)[**Bactobio** $18M · Oct 2026](https://millionrounds.com/company/bactobio)[**RHYTHM AI** $23M · Sept 2026](https://millionrounds.com/company/rhythm-ai)

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