Lexmark is an American company which develops and manufactures printing and imaging solutions, multifunction products and printing supplies - including laser and inkjet printers for consumers and businesses. In March 1991 IBM initially divested a number of its  hardware manufacturing operations to the investment form Clayton & Dubilier, Inc. in a leveraged buyout to form Lexmark International, Inc. Lexmark's Research and Development offices are located at the headquarters in Lexington, Kentucky, United States. Lexmark employs over 13,000 staff worldwide and has a revenue of US$4.53 billion as at 2008.