# 53Biologics funding: rounds and investors

> 53Biologics has raised $8.3M across 2 rounds since 2021. Investors include Inveready. Every round with its source.

Source: https://millionrounds.com/company/53biologics (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *53Biologics*

2 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

Raised 8 months ago

Funding summary Updated 26 Oct 2026

**$8.3M** raised across 2 rounds since 2021, from 2 sources

- **Latest round:** Venture Mar 2026
- **Biggest round:** $8.3M Venture · Sept 2021
- **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.

2022 2023 2024 2025 2026

**$8.3M** Venture

**?** Venture

- **First round:** Venture, $8.3M
- **Biggest round:** $8.3M
- **Between rounds:** 4.5 years

## The rounds

- **Mar 2026** Venture **Amount undisclosed** *1 returning* [Inveready](https://millionrounds.com/fund/inveready) Source recorded
- **Sept 2021** Venture **$8.3M** *1 new* [Inveready](https://millionrounds.com/fund/inveready) Source recorded

## Founders and team

From 53Biologics's own website: 1 founder, 8 on the team.

**Pablo Gutiérrez** CEO and Founder

- **Carmen Martínez** Chief Operations Officer
- **Emilio Gutiérrez** Chief Financial Officer
- **Adrián Pérez** Supply Chain Director
- **Andrea García** Quality Assurance Director
- **Carlos Blázquez** Engineering Director
- **Elena Hernández** Project Management Director
- **Francisco Reyes** Business Development Director
- **Sergio García** Human Resources Director

## Everyone who backed them

[Inveready](https://millionrounds.com/fund/inveready) VC firm **2** rounds

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=53biologics).

## Quick answers about 53Biologics

### Who invested in 53Biologics?

53Biologics's investors include Inveready.

### How much has 53Biologics raised?

53Biologics has raised $8.3M across 2 rounds since 2021. One round did not disclose an amount, so the total is a floor.

### When did 53Biologics last raise?

53Biologics's most recent round was a Venture in Mar 2026.

### What was 53Biologics's biggest round?

53Biologics's largest round on record is $8.3M (Venture), in Sept 2021.

### Who backed 53Biologics first?

53Biologics's first round on record, in Sept 2021, was backed by Inveready.

### What stage is 53Biologics at?

53Biologics's latest named round is a Venture, in Mar 2026.

### Where is 53Biologics based?

53Biologics is based in Spain.

## Companies like 53Biologics

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

[**HAWK Biosystems** $3.9M · Oct 2026](https://millionrounds.com/company/hawk-biosystems)[**Anaconda Biomed** $73M · Sept 2026](https://millionrounds.com/company/anaconda-biomed)[**Vaxdyn** $26M · Sept 2026](https://millionrounds.com/company/vaxdyn)[**iPremom** $17M · Sept 2026](https://millionrounds.com/company/ipremom)[**Flomics** $1.1M · Sept 2026](https://millionrounds.com/company/flomics)[**Connecta Therapeutics** $6.1M · Sept 2026](https://millionrounds.com/company/connecta-therapeutics)

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