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. 

Why partner with us

A true extension of your team
We work as a seamless part of your organisation, combining speed with scientific integrity.
Led by scientists
Our teams combine deep scientific expertise across the CMC landscape with agility and a highly collaborative approach.
Built on Trust
We’ve supported more than half of the world’s Top 10 pharma companies and over 100 biotech partners globally.
Driven by Sustainability
With My Green Lab certified labs and a silver EcoVadis Sustainability Rating, we’re recognised among the top 15% of companies globally for sustainable practices.
Expertise and Infrastructure
Our 14 purpose-built laboratories across the UK and Europe combine advanced technology with world-class scientific leadership.

Awards & Accreditations

Our commitment to quality and excellence has been recognised across industry and government.
Our Green Chemistry Commitment

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

Find out more about our labs and facilities across Europe and the UK
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"CatSci is, and will always be, defined by its people. We’re a team of scientists driven by purpose, united by partnership, and committed to progress. Together with our partners, we’re not just developing molecules; we’re shaping the future of how great science gets done"
Ross Burn
CEO, CatSci

Resources & Insights

  • 14 Oct 2025
CatSci Announces Strategic Collaboration with BRAINBiocatalysts to Advance Biocatalysis and Complex Synthetic Medicines
  • News
  • 6 Oct 2025
Advances in Small Molecule Drug Development 2025
  • Events
  • 20 Aug 2025
Peptide Oligonucleotide Conjugates – Why the Excitement?
  • Blog
  • 19 Aug 2025
Advances in Translational Drug Discovery 2025
  • Events