# Calyxo funding: rounds and investors

> Calyxo has raised $40M across 1 round since 2026. Investors include Janus Henderson Investors. Every round with its source.

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

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

# Who invested in *Calyxo*

One round we have observed, with the one investor 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

Raised 7 months ago

Funding summary Updated 26 Oct 2026

**$40M** raised across 1 round since 2026, from 1 source

- **Latest round:** Series F, $40M Apr 2026
- **Investors:** 1

See who backed them

## The rounds

- **Apr 2026** Series F **$40M** [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Source recorded SEC filing: $40M sold

## Everyone who backed them

[Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **1** round

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

## Also claim to have backed them

This firm lists Calyxo 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.

[Questa Capital](https://millionrounds.com/fund/questa-capital) Private equity Per its own site

## Quick answers about Calyxo

### Who invested in Calyxo?

Calyxo's investors include Janus Henderson Investors.

### How much has Calyxo raised?

Calyxo has raised $40M across 1 round since 2026.

### When did Calyxo last raise?

Calyxo's most recent round was a Series F of $40M in Apr 2026.

### What was Calyxo's biggest round?

Its most recent round, $40M in Apr 2026, is also its largest on record.

### Who backed Calyxo first?

Calyxo's first round on record, in Apr 2026, was backed by Janus Henderson Investors.

### What stage is Calyxo at?

Calyxo's latest named round is a Series F, in Apr 2026.

### Where is Calyxo based?

Calyxo is based in the United States.

## Companies like Calyxo

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

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)

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