Acquisitions
| Date of Acquisition | Company Acquired |
| November 23, 2009 | Millipore India Pvt. Ltd |
| August 10, 2009 | BioAnaLab |
| February 26, 2009 | EpiTag Technlogy |
| February 2, 2009 | Guava Technologies |
| July 14, 2006 | Serologicals Corporation |
| April 27, 2006 | Newport Bio Systems |
| August 9, 2005 | NovAseptic A.B. |
| July 4, 2005 | MicroSafe |
| July 31, 2002 | CPG |
| October 5, 2001 | IC Technology |
