Parexel is among the world’s largest clinical research organizations (CROs), providing the full range of Phase I to IV clinical development services to help lifesaving treatments reach patients faster. Leveraging the breadth of our clinical, regulatory, and therapeutic expertise, our team of more than 21,000 global professionals works in partnership with biopharmaceutical leaders, emerging innovators, and sites to design and deliver clinical trials with patients in mind, increasing access and participation to make clinical research a care option for anyone, anywhere.

Our depth of industry knowledge and strong track record gained over the past 40 years is moving the industry forward and advancing clinical research in healthcare’s most complex areas, while our innovation ecosystem offers solutions to make every phase of the clinical trial process more efficient. Our top-notch people, insight, and focus on operational excellence allow us to work every day to treat patients with dignity and continuously learn from their experiences, so every trial makes a difference.