Biotech is one of the hottest sectors for venture-capital funds right now, but pitching a science-heavy startup to investors isn't always easy. We asked the top investors in the space to tell us what startup leaders do wrong when they try to attract venture funding — and what they can do to avoid these pitfalls. Their answers contain some key lessons for biotech startups. Biotech is one of the buzziest sectors for venture-capital funds right now. Across the globe, VC investments in biotech startups topped more than $10 billion for the first time in history.