Serum Institute of India Limited
Biotechnology ResearchMaharashtra, India5001-10000 Employees
Serum Institute of India Limited, located in Hadapsar, Maharashtra, India, is a biotechnology research company founded in 1966 by Dr. Cyrus Poonawalla to produce life-saving immunobiologicals. It has grown into the world’s largest vaccine producer by volume, delivering more than 1.3 billion doses that cover vaccines such as polio, DTP, Hib, Hepatitis B, measles, mumps, and rubella. These vaccines are used in national immunization programs across about 170 countries and carry accreditation from the World Health Organization. The company is ranked as India’s No. 1 biotechnology company, delivering highly specialized biologicals and vaccines through advanced genetic and cell-based approaches, antisera, and related products. It maintains a philanthropic approach intended to reduce vaccine prices and broaden protection for under-privileged children from birth. In 2026, Serum Institute participated in ongoing vaccine development activities, including manufacturing support for an Ebola vaccine backed by CEPI.