

"The global CRO where clinical trials run on time"
PSI runs pivotal Phase 2 and Phase 3 clinical trials across oncology, hematology, gastroenterology, neurology, infectious diseases, and respiratory conditions. The company specialises in predictable patient enrollment, helping biopharmaceutical sponsors avoid delays and budget overruns. With over 3,200 employees across 58 countries, PSI delivers consistent operational excellence for sponsors who need reliable, on time results. The company supports clinical development with AI powered feasibility and site selection platforms. PSI serves sponsors who demand expertise in hard to enroll populations, tight timelines, and regulatory complexity. The result is over 90% repeat client business and industry recognition for on time delivery.


3200
Team Members
1995
Founded
Contract Research
Sector
Hybrid
Work Environment
A world where every patient with a serious disease can access life changing therapies without delay, where drug development timelines are predictable, and where clinical trials enrol patients swiftly and reliably to bring treatments to market faster.
PSI exists to deliver pivotal clinical trials on time and on budget, enabling sponsors to bring life changing therapies to patients faster through predictable enrollment and operational excellence.