Cyrus Soli Poonawalla is an Indian billionaire businessman, the Chairman and Managing Director of the Cyrus Poonawalla Group, which includes the Serum Institute of India (SII), the world's largest vaccine manufacturer by volume. Born in Pune, India, in 1941, into a Parsi (Zoroastrian) family, his father, Soli Poonawalla, was a prominent horse breeder.

Poonawalla's career path began with his interest in horses, which provided the foundational insight for his massive healthcare empire. Recognizing that he could apply the scientific process of breeding animals to generate high-quality serums and antitoxins, he decided to pivot to biotechnology. His vision was to produce immunobiologicals that were then being imported into India at high prices, achieving self-sufficiency in life-saving drugs.

Cyrus Poonawalla founded the Serum Institute of India (SII) in 1966 in Pune. His strategic vision was audacious: create an Indian company that could produce essential vaccines and antitoxins affordably for the massive domestic and global market. The company initially focused on tetanus antitoxin, snake antivenom, and DPT/MMR vaccines.

Under his leadership, SII grew exponentially, building one of the world's largest production capacities. The company produces over 1.5 billion doses annually, supplying vaccines to over 140 countries and reaching an estimated 65 percent of the world's children. SII's commitment to affordability and scale made it an indispensable global player, especially during major health crises (e.g., the COVID-19 pandemic). He received the national honor of the Padma Shri (2005) and the Padma Bhushan (2022) for his contributions to medicine, cementing his multi-billion dollar fortune and his legacy as a titan of global public health.

Cyrus Poonawalla's social impact is massive and global, centered on making life-saving vaccines affordable and accessible worldwide. His company's efforts have made India self-sufficient in several essential immunobiologicals.

He has been honored with multiple Lifetime Achievement Awards for his dedication to global health. The company's partnerships with global health agencies (like WHO, CEPI, and NIH) to develop vaccines for diseases like Mpox and Chikungunya underscore his ongoing commitment to public health security.

Cyrus Poonawalla maintains the distinguished, powerful style of an Indian industrialist patriarch. His attire is consistently formal and high-quality, favoring tailored suits. His public persona is defined by his commitment to his company's mission and his passion for horse breeding (a business he continues to maintain).

Residing in Pune, his luxury is the immense security and financial reward derived from his dominance in the global vaccine market. His life is dedicated to the strategic management of a company that is critical to global health, balancing industrial scale with a profound sense of social mission.