Name that company

I’m the product of many mergers and acquisitions, with my roots going back to the 1896 founding of a company that made medicines in Switzerland. Today, based in Burlington, N.C., and with a market value recently near $23 billion, I’m a leader in clinical diagnostics, also offering research and drug development services. I employ more than 70,000 people and serve hundreds of thousands of customers, with more than 160 million patient encounters annually. I offer everything from routine blood work testing to parentage testing and occupational testing. I’ve supported the development of most new drugs on the market today. Who am I?

Last week’s trivia answer: Cisco Systems