Meet the global CRO investigators ranked No1
Where the science of delivery meets the art of service
Learn moreThe art of our engineering means we're fine-tuned to your success.
High enrollment isn't an aspiration, it's a promise. But it's also just the beginning.
Learn moreOn-time delivery across the globe
At the heart of PSI
We prepare our sponsors for success from the very beginning, with each study undergoing a rigorous and customized approach. From feasibility to site selection, we understand that there is no “one size fits all” in the clinical research industry, so we work with you from day one to deliver on time and beyond expectations.
Service and delivery
Our high standards through each step of the study mean that you get results in the expected timelines managed by skilled experts across every phase. No chasing after deliverables or waiting in the dark for that next email. We’re here for you. Our success is your success.
Therapeutic areas
Other therapeutic areas of expertise
"PSI is a great example of what you can achieve with the right idea and the right group of people." Pharma CEO
Key achievements
Only 12% staff turnover globally
84% of clinical trials are behind schedule; 91% of ours deliver on time
95% repeat and referral rate