Leadership
Our company
Fearless League is a life sciences software company based in Leiden, creating modern platforms for molecular biology.
Our vision
A future where scientific work is supported by connected tools that grow with the researchers using them.
Our mission
To build practical, well-designed software around the way science is actually done by teams and educators.
Meet our contributors
Building tools together with the community
Researchers and educators help shape the tools they use every day.
Many of the improvements we make begin with a conversation. Your feedback doesn't disappear into a ticket system. It reaches the people designing and developing the software, so the tools better fit the way you work.
Avans Hogeschool
- Tessa van Kempen
- Martie Verschuren
- Peter van den Broek
UMC Utrecht
- Martijn Koppens
Cincinnati Children's Hospital
- Azam Mohammad
Hospital Universitario de Canarias
- Jessel Arya Plasencia
Leiden University Medical Center
- Prarthana Mohanraju
Hogeschool Leiden
- Kitty Verzijlbergen
Story behind Photo51

Photo 51, Rosalind Franklin, CC BY 4.0, via Wikimedia Commons
In May 1952, Rosalind Franklin and her PhD student Raymond Gosling produced an exceptionally clear X-ray diffraction image of DNA at King's College London. The exposure took 62 hours. The image was simply numbered Photograph 51.
It became one of the most important images in the history of molecular biology. Photo 51 revealed key features of the B-form of DNA and provided crucial evidence in the work that led to the double-helix model.
What we like about the story is not only the importance of the image itself. Photo 51 was the result of painstaking experimental work: improving methods, refining samples, controlling conditions and continuing until the data became clearer.
We named our molecular biology software Photo51 in honor of Rosalind Franklin and the researchers whose careful, persistent work makes scientific discovery possible.
Let's improve your workflow together
Moving from another platform, setting up a research team or looking for a better way to manage sequence design and plasmid information?
We're happy to discuss what you need.


