Meet the global clinical research organization ranked No. 1 by investigators twice in a row.Learn more
Our mission is to be the best CRO in the world as measured by our employees, clients, investigators, and vendors.
Our teams work tirelessly to ensure that we deliver on time and on budget. You will always know what's going on with your study when you work with PSI. That means not losing control over study timelines and budgets.
The PSI Advantage
PSI CRO has received CRO Leadership Awards in five categories, including Compatibility, Expertise, Quality, Reliability, and Capabilities across two respondent groups (Overall and Small Pharma). The CRO Leadership Awards are presented by Life Sciences Leader based on research conducted by ISR reports. The awards recognize CROs that are voted by sponsors to meet or exceed expectations.
Your last patient in is our first priority
PSI has been exceedingly professional and is respected by our site as a great collaborator. Anthony W. Tolcher, MD, FRCP, FACP