# Orbital Therapeutics funding: rounds and investors

> Orbital Therapeutics has raised $270M across 1 round since 2023. Investors include Andreessen Horowitz, ARCH Venture Partners and Invus.

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

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

# Who invested in *Orbital Therapeutics*

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.

Wellness

Funding summary Updated 26 Oct 2026

**$270M** raised across 1 round since 2023, from 1 source

- **Latest round:** Series A, $270M Apr 2023
- **Investors:** 5

See who backed them

## The rounds

- **Apr 2023** Series A **$270M** [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Invus](https://millionrounds.com/fund/invus) [Redmile Group](https://millionrounds.com/fund/redmile-group) [Casdin Capital](https://millionrounds.com/fund/casdin-capital) Source recorded

## Everyone who backed them

[Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **1** round

[ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **1** round

[Invus](https://millionrounds.com/fund/invus) Private equity **1** round

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

[Casdin Capital](https://millionrounds.com/fund/casdin-capital) VC firm **1** round

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

## Quick answers about Orbital Therapeutics

### Who invested in Orbital Therapeutics?

Orbital Therapeutics's investors include Andreessen Horowitz, ARCH Venture Partners, Invus, Redmile Group and Casdin Capital.

### How much has Orbital Therapeutics raised?

Orbital Therapeutics has raised $270M across 1 round since 2023.

### When did Orbital Therapeutics last raise?

Orbital Therapeutics's most recent round was a Series A of $270M in Apr 2023.

### What was Orbital Therapeutics's biggest round?

Its most recent round, $270M in Apr 2023, is also its largest on record.

### Who backed Orbital Therapeutics first?

Orbital Therapeutics's first round on record, in Apr 2023, was backed by Andreessen Horowitz, ARCH Venture Partners and Invus and 2 others.

### What stage is Orbital Therapeutics at?

Orbital Therapeutics's latest named round is a Series A, in Apr 2023.

### Where is Orbital Therapeutics based?

Orbital Therapeutics is based in the United States.

## Companies like Orbital Therapeutics

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

[**Clockout** $5.5M · Oct 2026](https://millionrounds.com/company/clockout)[**David** $325M · Sept 2026](https://millionrounds.com/company/david)[**Blueprint** $76M · Aug 2026](https://millionrounds.com/company/blueprint)[**Vayas360** $25M · Jun 2026](https://millionrounds.com/company/vayas360)[**NewLimit** $610M · Jun 2026](https://millionrounds.com/company/newlimit)[**Flawless Aesthetics** $399K · Jun 2026](https://millionrounds.com/company/flawless-aesthetics)

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