This statistic depicts the number of employees at German pharmaceutical and chemical company Merck KGaA from 1999 to 2012. In 2010, the company reported a total of 40,562 employees. In the United States, Merck KGaA is also known as "EMD Chemicals" or "German Merck". The company is headquartered in Darmstadt. Founded in 1668, Merck is the oldest operating chemical and pharmaceutical company worldwide.