Founded in 2013 as a spin-out from Queen’s University Belfast, ProAxsis is a commercial-stage biomarker-led research company specialising in active protease biomarker analysis. The company supports pharmaceutical, biotechnology and research organisations through specialist biomarker insight, research-use assays and scientific collaboration.
At the core of ProAxsis’ scientific offering is its proprietary ProteaseTag® technology, designed to selectively capture and measure active protease biomarkers within complex biological samples.
ProAxsis’ patented approach has enabled the generation of high-quality biomarker data to support drug development, translational research and clinical investigation.
More specifically, ProAxsis has developed assays targeting active neutrophil elastase (NE), proteinase 3 (Pr3) and cathepsin G (Cat G), which are protease biomarkers of lung infections and inflammation in chronic respiratory diseases.
The company’s expertise has supported clinical research and biomarker programmes across areas including bronchiectasis, alpha-1 antitrypsin deficiency, COPD and cystic fibrosis.
Building on its deep expertise in the measurement of active proteases, ProAxsis is now working to expand its scientific capabilities across additional biomarkers, applications and disease areas.

NetScientific PLC (London) becomes lead investor
ProAxsis moved into customised premises in Titanic Quarter (Belfast NI)
First product CE Marking for NE Assay
First pharmaceutical partnership with Insmed (US)

ERJ Shoemark publication supports NEATstik CE Mark
ProAxsis acquires IP from Queen’s University
University of Geneva partnership announced
Global in-licensing deal with AstraZeneca

Performance Evaluations study results for AZ test announced
ProAxsis wins Best Small Business in Northern Ireland award
Imperial College London partnership
Wanda Health collaboration begins

Awarded Innovate UK SMART Grant
Future Medicines Institute (FMI) Grant Award
Relocation to Randox Science Park
Launch of Updated NE Assay