PerkinElmer, Inc. · Waltham, MA United States ·(NYSE: PKI)

If you know the difference between covalent and ionic bonds, you can probably appreciate the products from PerkinElmer. The company makes a wide range of analytical instruments used for chemical and thermal analysis, including calorimeters, chromatographs, and spectrometers. PerkinElmer Optoelectronics makes fiber-optic test systems and lithography systems used in medical, industrial, and telecommunications applications. PerkinElmer Life and Analytical Sciences makes products used for drug discovery and genetic disease screening, including labeling reagents and cell imaging systems; it accounts for about three-quarters of sales. About 60% of PerkinElmer's sales are to customers outside the US. To read the full description, subscribe now.