Parexel International Corp Overview
Pro stress-test →Parexel International is a clinical research organization offering various services which broadly include consulting, clinical research, access, and informatics. The company serves biopharmaceutical clients across drug development, regulatory consulting, and commercialization, operating globally with therapeutic expertise spanning oncology, infectious diseases, rare diseases, and cell and gene therapies.
Strategic Profile
Pro stress-test →Parexel employs 22,000 total employees and maintains an estimated 6.3% market share in Clinical Trial Support Services in the US. The company underwent a buyout with Vitrana in April 2026, and launched the ParexelAI Suite of Human-Led AI Services for Clinical Trials in May 2026, positioning itself as an innovator in AI-driven clinical research solutions.
Competitive Landscape
Pro stress-test →Competitors include Worldwide Clinical Trials, Syneos Health, CTI Clinical Trial and Consulting, PSI CRO, and Allucent. Parexel maintains competitive advantage through integrated global operations, therapeutic expertise across multiple disease areas, and recent AI innovation adoption positioning it as a modernizing force in the CRO market.
Industry Context
Parexel International Corp operates in Clinical Research Organization / Biopharmaceutical Outsourcing.
Key facts
Founded: 1982 · Headquarters: Durham, US · Employees: 22,000 · Revenue: $2.44B