CSL
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"Global biotechnology company developing lifesaving biotherapies and vaccines"
About CSL
CSL is a global biopharmaceutical company headquartered in Melbourne, developing lifesaving medicines and vaccines through CSL Behring, CSL Seqirus and CSL Vifor. Its portfolio includes plasma-derived therapies for bleeding disorders and immune deficiencies, influenza vaccines, and treatments for iron deficiency and kidney disease. CSL Seqirus is one of the world’s largest influenza vaccine providers.
Established in Australia in 1916 as Commonwealth Serum Laboratories, CSL now supplies patients in more than 120 countries. It reported a global workforce of 28,933 in 2025/26. Its UK presence includes vaccine manufacturing in Liverpool and offices in Maidenhead and Haywards Heath, connecting research, production and the supply of medicines to patients.
Careers across the medicine lifecycle
CSL’s careers span laboratories, offices and frontline operations. Research and development teams work within a business that also recruits in engineering, manufacturing, quality, supply chain, regulatory affairs and plasma operations. CSL encourages employees to explore internal roles across functions and regions; international moves depend on business needs and individual qualifications.
Employee feedback and team development
CSL runs an annual employee engagement survey covering collaboration, growth, working life and the company’s direction. Global leadership teams review their results and select objectives and action plans for the following year. People leaders receive training to interpret team feedback and identify improvements, linking the company-wide survey to work within individual teams.
28933
Team Members
1916
Founded
Pharma
Sector
Hybrid
Work Environment