The global CRO where clinical trials run on time

Finding a CRO to deliver your trials on time and on budget isn’t easy. Choose the CRO you can trust.

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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.

How we can help you

Therapeutic areas

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.  

An image of a conference held by PSI
Next Event

Gene Therapy for Rare Disorders

Mar 30 - Apr 02 2020, Boston, MA

Latest whitepapers:


The Seven Deadly Sins of Trial Supply Management

Supply chain logistics can make or break a clinical trial. So how does a CRO partner work with a Sponsor to ensure supplies are properly managed?

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Mindful clinical trials

What does risk-based monitoring have to do with it?

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PSI has been exceedingly professional and is respected by our site as a great collaborator. Anthony W. Tolcher, MD, FRCP, FACP