# Expansion funding: rounds and investors

> Expansion has raised $55M across 1 round since 2017. Investors include Kleiner Perkins Caufield & Byers, Novartis Venture Fund and 5AM Ventures.

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

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

# Who invested in *Expansion*

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 Healthcare

Funding summary Updated 26 Oct 2026

**$55M** raised across 1 round since 2017, from 1 source

- **Latest round:** Series A, $55M Jan 2017
- **Investors:** 5

See who backed them

## The rounds

- **Jan 2017** Series A **$55M** [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [Novartis Venture Fund](https://millionrounds.com/fund/novartis-venture-fund) [5AM Ventures](https://millionrounds.com/fund/5am-ventures) [Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) Sanofi Ventures/ RA Capital Reported by FinSMEs

## Everyone who backed them

[Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) VC firm **1** round

[Novartis Venture Fund](https://millionrounds.com/fund/novartis-venture-fund) Corporate VC **1** round

[5AM Ventures](https://millionrounds.com/fund/5am-ventures) VC firm **1** round

[Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) VC firm **1** round

Sanofi Ventures/ RA Capital no record of our own yet **1** round

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

## Quick answers about Expansion

### Who invested in Expansion?

Expansion's investors include Kleiner Perkins Caufield & Byers, Novartis Venture Fund, 5AM Ventures, Alexandria Real Estate Equities and Sanofi Ventures/ RA Capital.

### How much has Expansion raised?

Expansion has raised $55M across 1 round since 2017.

### When did Expansion last raise?

Expansion's most recent round was a Series A of $55M in Jan 2017.

### What was Expansion's biggest round?

Its most recent round, $55M in Jan 2017, is also its largest on record.

### Who backed Expansion first?

Expansion's first round on record, in Jan 2017, was backed by Kleiner Perkins Caufield & Byers, Novartis Venture Fund and 5AM Ventures and 2 others.

### What stage is Expansion at?

Expansion's latest named round is a Series A, in Jan 2017.

### Where is Expansion based?

Expansion is based in the United States.

## Companies like Expansion

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)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)

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