18 Best Rare Disease Startups to Watch in 2025

The Definitive Seedtable Ranking of Rare Disease Startups

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 18 start-ups with an aggregate funding of $1.4b. The average funding per company in this subset is $77.5m.

Last update to the database: Feb 18, 2025. See changelog.

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2

Funding Rounds

$98.0m

Money raised

OrphAI Therapeutics is a biotechnology research company based in Guilford, Connecticut that develops precision therapeutics technology designed to treat cancer and rare diseases.

3

Funding Rounds

$117.5m

Money raised

A biopharmaceutical company focused on developing treatments for urea cycle disorders and other rare diseases

Key people:

5

Funding Rounds

$76.5m

Money raised

AllStripes is a U.S-based company offering a rare disease medical information database.

4

Funding Rounds

$124.1m

Money raised

Healx is a biotechnology therapeutics company for rare diseases founded in 2014 by Tim Guilliams.

Key people:

3

Funding Rounds

$250.0m

Money raised

Hemab Therapeutics is pioneering the first preventative treatments for rare bleeding and thrombotic disorders to ensure no patient is ever left behind

2

Funding Rounds

$140.0m

Money raised

Disc Medicine is a medical research company that develops treatments for hematologic diseases.

1

Funding Rounds

$35.4m

Money raised

We are dedicated to improving the lives of patients suffering from hematological malignancies by delivering an innovative immune modulator to enhance the curative potential of allogeneic Hematopoietic Stem Cell Transplantation (HSCT).

1

Funding Rounds

$40.0m

Money raised

Wilson Therapeutics is an every Day We Change Lives founded in 1992.

13

Funding Rounds

$147.7m

Money raised

Minoryx Therapeutics is a small Molecules for Rare Diseases founded in 2011.

3

Funding Rounds

$88.3m

Money raised

CENTOGENE is a Rostock-based healthcare company developing methods and technologies for genetics analysis.

1

Funding Rounds

$3.9m

Money raised

We’re here to inspire an information revolution in rare disease. Our contribution will be to build a knowledge bank for the lived experience of rare disease, and it will catalog every aspect of life with a rare condition: specifically, any of the 7000+ rare conditions. Incredibly ambitious? You bet.

2

Funding Rounds

$44.0m

Money raised

InnoSkel is a therapies for Rare Skeletal Diseases founded in 2020 by Elvire Gouze.

Location:

Key people:

2

Funding Rounds

$50.9m

Money raised

Clinical stage treatment for Myotonic Dystrophy Type 1

Location:

Key people:

1

Funding Rounds

$675.0k

Money raised

Mendelian Ltd is a London-based diagnostics company developing rare disease diagnostics.

1

Funding Rounds

$50.0m

Money raised

Computational platform for small molecule discovery targeting protein misfolding diseases

2

Funding Rounds

$100.0m

Money raised

Therachon is a company founded in 2014.

1

Funding Rounds

$1.5m

Money raised

ThinkGenetic is a company founded in 2016 by Dave Jacob.

1

Funding Rounds

$27.5m

Money raised

Azafaros is a small Molecules.

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