# ZielBio funding: rounds and investors

> ZielBio has raised $33M across 2 rounds since 2019. Investors include Morningside Group and Partners HealthCare Innovation. Every round with its source.

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

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

# Who invested in *ZielBio*

2 rounds we have observed, with the 2 investors 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

**$33M** raised across 2 rounds since 2019, from 2 sources

**$25M** Series A **$7.5M** Venture

- **Latest round:** Venture, $7.5M Sept 2022
- **Biggest round:** $25M Series A · Sept 2019
- **Investors:** 2

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.

2020 2021 2022

**$25M** Series A

**$7.5M** Venture

- **First round:** Series A, $25M
- **Biggest round:** $25M
- **Between rounds:** 2.9 years

## The rounds

- **Sept 2022** Venture **$7.5M** *1 returning* [Morningside Group](https://millionrounds.com/fund/morningside) Source recorded SEC filing: $7.5M sold, first sale Sept 2022
- **Sept 2019** Series A **$25M** *2 new* [Morningside Group](https://millionrounds.com/fund/morningside) [Partners HealthCare Innovation](https://millionrounds.com/fund/partners-healthcare-innovation) Reported by FinSMEs SEC filing: $11M sold, first sale Sept 2019

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series A** 2019 **Venture** 2022 [Morningside Group](https://millionrounds.com/fund/morningside) [Partners HealthCare Innovation](https://millionrounds.com/fund/partners-healthcare-innovation)

## Everyone who backed them

[Morningside Group](https://millionrounds.com/fund/morningside) VC firm **2** rounds

[Partners HealthCare Innovation](https://millionrounds.com/fund/partners-healthcare-innovation) Corporate VC **1** round

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

## Quick answers about ZielBio

### Who invested in ZielBio?

ZielBio's investors include Morningside Group and Partners HealthCare Innovation.

### How much has ZielBio raised?

ZielBio has raised $33M across 2 rounds since 2019.

### When did ZielBio last raise?

ZielBio's most recent round was a Venture of $7.5M in Sept 2022.

### What was ZielBio's biggest round?

ZielBio's largest round on record is $25M (Series A), in Sept 2019.

### Who backed ZielBio first?

ZielBio's first round on record, in Sept 2019, was backed by Morningside Group and Partners HealthCare Innovation.

### What stage is ZielBio at?

ZielBio's latest named round is a Venture, in Sept 2022.

### Where is ZielBio based?

ZielBio is based in the United States.

## Companies like ZielBio

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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