Theranos is one of the hottest and most-valuable startups in the world at the moment, but the company has been facing a lot of heat from the media this year over the validity of many of its claims, ranging from how well its technology works to which companies it’s doing business with. On top of the recent investigation by the Wall Street Journal, which suggested that the technology that Theranos uses doesn’t work like it should, both GSK and Pfizer have denied doing any serious business with the company, despite Theranos claiming that a portion of its income comes from them.
