Keyword: Rotarix

GlaxoSmithKline HQ

1. GlaxoSmithKline

GlaxoSmithKline made a massive bet on vaccines in 2014 under former CEO Andrew Witty, and since then the company has been picking up steam in the space. With new launch Shingrix getting out ahead of expectations, analysts believe the drugmaker's vaccine business is headed past the $10 billion mark in the coming years.