There are a couple of companies doing the same thing. They seem legit, and are founded by PhDs and university research scientists. If you look at their websites, you will find details about their technology, publications in scientific journals, professional conference talks & awards, etc. But they are not well known or hyped as much as Theranos. Do you really think the technology is not physically possible?
http://www.cbc.ca/news/canada/british-columbia/uvic-blood-te...