How much funding has Leyden Labs raised?

Leyden Labs has raised $320.0M in total funding, most recently a Venture Round.

Who are Leyden Labs's investors?

Leyden Labs's investors include GV, Casdin Capital, European Innovation Council Fund, ClavystBio, Polaris Partners, Invest-NL.

When was Leyden Labs founded?

Leyden Labs was founded in 2021.

Where is Leyden Labs headquartered?

Leyden Labs is headquartered in Leiden, Netherlands.

What industry is Leyden Labs in?

Leyden Labs operates in Biotech, Healthcare.

How many employees does Leyden Labs have?

Leyden Labs has 11-50 employees.

Leyden Labs

Protecting Now From What Comes Next

Leiden, Netherlands · Founded 2021 · $320.0M raised

Biotech

Healthcare

Headquarters: Leiden
Employees: 11–50
Founded: 2021
Business Model: B2B

Website: leydenlabs.com
Total Funding: $320.0M
Last Round: $40.0M Venture RoundJun 2026
Rounds: 7

About

Leyden Labs is a clinical-stage biotechnology company developing nasal sprays containing broadly-neutralizing antibodies that target respiratory viruses in the nasal mucosa. Their lead program PanFlu targets influenza A and B strains with a universal mechanism designed to protect against existing and future viral variants. Founded in 2020 and based in Leiden, Netherlands.

Summary

Leyden Labs is a Biotech company based in Leiden, Netherlands, founded in 2021. It has raised $320.0M in total across 7 rounds, most recently a $40.0M Venture Round round in Jun 2026. Investors include GV, Casdin Capital and European Innovation Council Fund.