Ramesh Balwani is an American businessman known for his role as the former president and COO of Theranos, a health technology company. He joined the company in 2009 and was closely associated with its founder, Elizabeth Holmes. Balwani played a significant part in promoting the company's vision of revolutionizing blood testing. In 2018, Balwani was indicted on charges of fraud and conspiracy related to the misleading claims made by Theranos about its blood-testing technology. His trial, alongside Holmes', drew significant media attention and raised questions about ethics in the tech and healthcare industries.