A Melbourne practicebuilt on evidence.

P Square Pty Ltd is a Melbourne-based practice. Our primary work is airflow visualisation — controlled-smoke studies for cleanrooms, pharmaceutical manufacturing, hospitals and critical facilities, delivered as evidence that stands up in an audit.

We have delivered more than ten studies for CSL Behring, one of the world's largest biotechnology companies, at their Melbourne manufacturing operations. That work set the standard we hold everything else to: agree the protocol first, capture properly, and hand back something the client's own team can defend.

Alongside the studies we run three smaller practices — video and training systems, AI agents, and SAP integration. They exist because clients asked, and because each one is close enough to the core work that we can do it well rather than adequately.