7 Best Startups in Leiden to Watch in 2026

The Definitive Seedtable Ranking of Startups in Leiden

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 7 start-ups with an aggregate funding of $163.6m. The average funding per company in this subset is $23.4m.

Last update to the database: Apr 21, 2026. See changelog.

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ISA Pharmaceuticals logo

ISA Pharmaceuticals

3

Funding Rounds

$61.4m

Money raised

ISA Pharmaceuticals is a synthetic therapeutic vaccines founded in 2004 by Cornelius Melief.

Industries:

Vaccine Biomedical engineering Biopharmaceutical

Location:

Leiden Oegstgeest

Key people:

DCPrime logo

DCPrime

5

Funding Rounds

$26.0m

Money raised

DCPrime is a biotechnology company developing cancer immunotherapies.

Industries:

Immunotherapy Cancer immunotherapy Healthcare

Location:

Leiden Netherlands

Key people:

Avidicure logo

Avidicure

1

Funding Rounds

$50.0m

Money raised

Developer of a multifunctional antibody modality to treat cancer.

Industries:

Health technology Biotechnology

Location:

Leiden

Key people:

MIMETAS logo

MIMETAS

1

Funding Rounds

$20.0m

Money raised

MIMETAS is a company founded in 2013.

Industries:

Drug discovery Biomedical engineering 3D Technology

Location:

Netherlands Leiden
Bimini logo

Bimini

1

Funding Rounds

$3.1m

Money raised

Developer of first-in-class small molecule therapeutics for hematological cancers.

Industries:

Health technology Biotechnology Pharmaceutical industry

Location:

Leiden Netherlands

Key people:

DNage logo

DNage

1

Funding Rounds

$1.9m

Money raised

DNage is a company that provides information about aging.

Industries:

Genetics Biotechnology Biology

Location:

Leiden

Key people:

XS Innovations logo

XS Innovations

1

Funding Rounds

$1.3m

Money raised

XS Innovations is developing vascular access devices to improving quality of life for millions patients.

Industries:

Manufacturing Health technology

Location:

Netherlands Leiden

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