• A proud winner of Excellence in Pharma: Contract Services and Outsourcing 2018

  • Providing chemistry expertise to bring your therapeutics to life

  • An independent, scientifically-unbiased and commercially-minded CRO

  • We develop perfect-for-purpose chemistry solutions from lead optimisation through to product launch

White outline of a person against a transparent background.

Who we are

We are an award-winning, fast-growing and adaptable process research and development CRO with a proven track record. Utilising decades of experience working on hundreds of drug discovery and development projects, for companies around the world, we develop economically and environmentally sustainable chemistry solutions.

Meet CatSci
White outline of of a flow reactor against a transparent background.

What we do

As an independent, scientifically-unbiased and commercially-minded CRO, we are a reliable and trusted partner for innovation. We are dedicated to understanding and optimising any of your chemical reactions and processes to enable timely drug substance development in line with project demands, from candidate selection through to development and life-cycle management.

See what we're up to
  • Enabling chemistry to expedite candidate selection
  • Reaction screening & parallel chemistry
  • Flexible route design & optimisation
  • Reaction trouble-shooting
  • mg to g material supply
  • Reaction trouble-shooting
  • Route scouting
  • Rapid scale-up
  • Analytical method development
  • Early solid-state characterisation
  • Non-GMP material supply
  • Tech transfer for first GMP manufacture
  • Route design & assessment
  • Route development & scale-up
  • Process understanding & robustness
  • Process improvement & optimisation
  • Experimental design (DoE, QbD)
  • Crystallisation development
  • Analytical method development
  • Demonstration batches
  • Tech transfer for GMP manufacture

Recent Updates

11 December 2019

CatSci announces advisory board and lab expansion to continue strategic growth

CatSci, a fast growing, adaptable and award-winning process research and development contract research organisation (CRO), is furthering its expansion strategy to deliver tailored chemistry services to support the Chemistry, Manufacturing and Controls (CMC) demands of its global pharma customers.

03 September 2019

CatSci continues global expansion into North America and beyond

CatSci, a fast growing, adaptable and award-winning process research and development contract research organisation (CRO), is furthering its global growth strategy to support innovator pharma in meeting their Chemistry, Manufacturing and Controls (CMC) demands.

11 July 2019

CatSci’s contribution to the Welsh economy receives national recognition

CatSci, a fast growing, adaptable and award-winning contract research organisation (CRO), has received two prestigious accolades from highly-esteemed Welsh organisations.

Latest Press

05 February 2020 - Careers in Discovery

Careers in Discovery

Our CEO, Dr Ross Burn spoke to the Careers in Discovery podcast about entrepreneurship, his career and CatSci's journey.

17 January 2020 - Chemicals Knowledge Hub

Women in science – how ‘fortunate’ do you feel?

Our Business Development Manager, Dr Jenny Wallis recently spoke to Chemicals Knowledge Hub about what it means to be a woman working in the pharmaceutical industry in the 21st century.

24 October 2019 - The Medicine Maker

Process Development 101: How Not to Burn Down Your Factory

Our Technical Director, Dr Jonathan Moseley, offers tips on how to manufacture your API in the right quantity, at the right cost, and in the right time frame - and not burn your factory down in the process!