In order to found a successful company, you don’t just need to be passionate about your business, you also need to know the ins and outs of your industry. For Daniel White, that meant using the Rolodex of contacts he acquired after 25 years in biotechnology to found five successful companies—two of which, Clearside Biomedical and Alimera Sciences, both focusing on retinal ophthalmology, have gone public. And throughout his entrepreneurial career, he has raised over $475 million.