# Microbion funding: rounds and investors

> Microbion has raised $28M across 6 rounds since 2009. Investors include Quark Venture. Every round with its source.

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

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

# Who invested in *Microbion*

6 rounds we have observed, with the one investor named in them. 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

**$28M** raised across 6 rounds since 2009, from 6 sources

**$414K** Venture **$199K** Venture **$933K** Venture **$1.2M** Venture **$100K** Venture **$25M** Round

- **Latest round:** Round, $25M Jan 2017
- **Step-up i:** 250×
- **Investors:** 1

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2011 2013 2015 2017

**$414K** Venture

**$199K** Venture

**$933K** Venture

**$1.2M** Venture

**$100K** Venture

**$25M** Round

- **First round:** Venture, $414K
- **Biggest round:** $25M
- **Usual gap between rounds:** 13 months

## The rounds

- **Jan 2017** Round **$25M** *1 new* [Quark Venture](https://millionrounds.com/fund/quark-venture) Reported by FinSMEs SEC filing: $25M sold, first sale Dec 2016
- **Jan 2014** Venture **$100K** No investor was named in the report. From a historical funding record SEC filing: $100K sold, first sale Jan 2014
- **Apr 2013** Venture **$1.2M** No investor was named in the report. Reported by sec.gov SEC filing: $1.2M sold, first sale Oct 2012
- **Sept 2011** Venture **$933K** No investor was named in the report. Reported by sec.gov SEC filing: $933K sold, first sale Aug 2010
- **Aug 2010** Venture **$199K** No investor was named in the report. From a historical funding record SEC filing: $199K sold, first sale Aug 2010
- **Oct 2009** Venture **$414K** No investor was named in the report. From a historical funding record SEC filing: $414K sold, first sale Oct 2009

## Everyone who backed them

[Quark Venture](https://millionrounds.com/fund/quark-venture) Growth equity **1** round

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

## Quick answers about Microbion

### Who invested in Microbion?

Microbion's investors include Quark Venture.

### How much has Microbion raised?

Microbion has raised $28M across 6 rounds since 2009.

### When did Microbion last raise?

Microbion's most recent round was an Undisclosed round of $25M in Jan 2017.

### What was Microbion's biggest round?

Its most recent round, $25M in Jan 2017, is also its largest on record.

### Who backed Microbion first?

Microbion's first round on record, in Jan 2017, was backed by Quark Venture.

### What stage is Microbion at?

Microbion's latest named round is an Undisclosed round, in Jan 2017.

### Where is Microbion based?

Microbion is based in the United States.

## Companies like Microbion

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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