About us
Your Trusted Partner for
Complex Drug Development
We exist to help biotech and pharma companies advance life-changing medicines, faster, safer, and with greater clarity. While we don’t manufacture, we enable. And that difference matters.
From discovery to IND, our mission is clear: to be the most respected and leading global outsourcing partner for advancing innovative medicines across drug modalities and conjugates — defined not by infrastructure, but by intellect, precision, and trust.
Founded in 2010 by former AstraZeneca scientists, we began as a catalyst screening specialist before evolving into a fully integrated innovation partner for complex synthetic medicines. What started in a single lab in Cardiff has expanded across 14 state-of-the-art laboratories across the UK and Europe.
Over the past decade, we’ve expanded into process chemistry, analytical development, oligonucleotides, peptides, and bioscience; we continuously invest in the people, technology, and infrastructure that enable our customers to move from discovery to clinic with confidence.
Today, CatSci stands as a trusted drug development CRO to more than 100 biotechs and global pharma companies.
Why partner with us
Awards & Accreditations
Sustainability is more than a commitment, it’s a core part of how we operate.
From greener routes and lifecycle PMI assessment to inclusive hiring and giving back to our community, we’re building a business that delivers for customers, colleagues and the planet.
We’ve pledged to achieve Net Zero by 2045, and our science-based climate targets are formally by approved by the SBTi.
Every CatSci project aims to reduce risk for our customers and our environment.
Locations & Facilities
