Charles River Laboratories
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"Accelerating drug discovery and development to bring life-changing therapies to patients faster"
About Charles River Laboratories
Charles River Laboratories supplies research models, laboratory services and scientific and regulatory expertise for pharmaceutical, biotechnology, government and academic research. Founded as a Boston laboratory in 1947, it supports work from basic discovery and preclinical safety assessment to testing that supports the safe manufacture of medicines.
Headquartered in Wilmington, MA, the group reported approximately 19,700 employees at 27 December 2025. Following divestitures, its 2026 investor presentation reports over 18,000 employees in around 20 countries. Charles River supported over 80% of novel FDA-approved drugs in 2021–25 and produces one in two research models globally. Its CDMO and Cell Solutions businesses became the independent Rose BioSolutions in May 2026.
Developing skills across the business
Charles River’s global learning strategy includes technical training, mentoring, coaching and learning on the job. Regular performance conversations, annual goals and continuing feedback form part of its approach to development, providing a structure for discussing skills and progression.
19700
Team Members
1947
Founded
Contract Research
Sector
Hybrid
Work Environment