Merck & Co. Number of employees
Number of Employees at Merck & Co. 2006-2021
| Year | Employees |
| 2021 | 68,000 |
| 2020 | 74,000 |
| 2019 | 71,000 |
| 2018 | 69,000 |
| 2017 | 69,000 |
| 2016 | 68,000 |
| 2015 | 68,000 |
| 2014 | 70,000 |
| 2013 | 77,000 |
| 2012 | 83,000 |
| 2011 | 86,000 |
| 2010 | 94,000 |
| 2009 | 100,000 |
| 2008 | 55,200 |
| 2007 | 59,800 |
| 2006 | 60,000 |
2021: As of the end of 2021, Merck & Co employed 68,000 people globally including 67,000 employees. 27,000 of the employees were located in the United States including Puerto Rico.
Number of Employees at Merck & Co. remained the same as last year in 2018 at 69,000.