• 1,400 Staff Worldwide
    Global reach with local knowledge in 50+ countries
  • Exceptional Repeat & Referral Business
    A no-nonsense CRO with proven reputation for high quality and on time delivery
  • 5% staff turnover company-wide
    Guaranteed continuity of study teams, loyalty and accountability
  • 95% of psi studies complete on time
    Saving you money and time to market
PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.
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PSI is known in the industry as a CRO focused on on-time project delivery. This is achieved through investing substantial effort and MD resources into performing quality feasibility assessments that provide an accurate predictor of study timelines.
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Week 33, 2014


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ICAAC 2014
September 5-9, 2014
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“Successful completion of patient recruitment in just over 12 months is a credit to the clinical team which has worked tirelessly to execute this trial within the tight timeline and budget”
Chief Scientific Officer, Australia February 2013
“I’m always impressed with how PSI employees conduct themselves and I frequently hear them say …”that is not a problem” no matter how big or small the request may be.”
Director Clinical Operations US January 2013
"PSI team, we got [drug] approved in US! This would not have been possible without all your efforts and your help. I wanted to thank all of you for this!”
Clinical Project Manager Austria June 2013
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Zug, Switzerland, August 5, 2014 – PSI CRO, a full service Contract Research Organization, known for predictable, on-time enrollment and project delivery, announced today that it has continued to expand the staffing and service offerings in North America.
In response to the increasing needs of its clients for global clinical trials, PSI moves forward with … Read More »

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