# Cheiron funding: rounds and investors

> Cheiron has raised $8.0M across 1 round since 2026. Investors include Menlo Ventures, Freda Lewis-Hall and John Giannandrea. Every round with its source.

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

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

# Who invested in *Cheiron*

One round we have observed, with the 6 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.

AI Biotech Pharma

Raised 3 months ago

Funding summary Updated 26 Oct 2026

**$8.0M** raised across 1 round since 2026, from 1 source

- **Latest round:** Seed, $8.0M Jul 2026
- **Led by:** Menlo Ventures
- **Investors:** 6 (1 led)

See who backed them

## The rounds

- **Jul 2026** Seed **$8.0M** [Menlo Ventures](https://millionrounds.com/fund/menlo-ventures) Lead [Freda Lewis-Hall](https://millionrounds.com/fund/freda-lewis-hall) [John Giannandrea](https://millionrounds.com/fund/john-giannandrea) [Josh Meier](https://millionrounds.com/fund/josh-meier) [Laxman Narasimhan](https://millionrounds.com/fund/laxman-narasimhan) [Robert Langer](https://millionrounds.com/fund/robert-langer) Reported by Menlo Ventures

## Everyone who backed them

[Menlo Ventures](https://millionrounds.com/fund/menlo-ventures) VC firm **1** round, led 1

[Freda Lewis-Hall](https://millionrounds.com/fund/freda-lewis-hall) Angel **1** round

[John Giannandrea](https://millionrounds.com/fund/john-giannandrea) VC firm **1** round

[Josh Meier](https://millionrounds.com/fund/josh-meier) VC firm **1** round

[Laxman Narasimhan](https://millionrounds.com/fund/laxman-narasimhan) VC firm **1** round

[Robert Langer](https://millionrounds.com/fund/robert-langer) Angel **1** round

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

## Also claim to have backed them

This firm lists Cheiron 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.

[DigiTx Partners](https://millionrounds.com/fund/digitx-partners) VC firm Per its own site

## Quick answers about Cheiron

### Who invested in Cheiron?

Cheiron's investors include Menlo Ventures, Freda Lewis-Hall, John Giannandrea, Josh Meier and Laxman Narasimhan, and 1 more on record. Menlo Ventures led its latest round.

### How much has Cheiron raised?

Cheiron has raised $8.0M across 1 round since 2026.

### When did Cheiron last raise?

Cheiron's most recent round was a Seed of $8.0M in Jul 2026, led by Menlo Ventures.

### What was Cheiron's biggest round?

Its most recent round, $8.0M in Jul 2026, is also its largest on record.

### Who backed Cheiron first?

Cheiron's first round on record, in Jul 2026, was backed by Menlo Ventures, Freda Lewis-Hall and John Giannandrea and 3 others.

### What stage is Cheiron at?

Cheiron's latest named round is a Seed, in Jul 2026.

### Who led Cheiron's rounds?

Menlo Ventures led the Seed in 2026.

## Companies like Cheiron

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

[**Nirva** $25M · Oct 2026](https://millionrounds.com/company/nirva)[**Lovi** $15M · Oct 2026](https://millionrounds.com/company/lovi)[**Palma.ai** $1.8M · Sept 2026](https://millionrounds.com/company/palma-ai)[**Hang Ten Systems** $53M · Sept 2026](https://millionrounds.com/company/hang-ten-systems)[**OriginalVoices** $1.3M · Sept 2026](https://millionrounds.com/company/originalvoices)[**Positron AI** $875M · Sept 2026](https://millionrounds.com/company/positron-ai)

## 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