Dover Corp. manufactures and offers innovative equipment, components, and specialty systems. The company also provides supporting engineering, testing, and other similar services. It operates its business through four segments: Communication Technologies, Energy, Engineered Systems, and Printing & Identification. The Communication Technologies segment is engaged in the design and manufacture of innovative products and components in the consumer electronics, medical technology, aerospace/defense, and telecom/other markets. The Energy segment provides highly-engineered solutions for the safe and efficient extraction and handling of oil and gas in the drilling, production, and downstream markets. The Engineered Systems segment is comprised of two platforms, Fluid Solutions and Refrigeration & Industrial, which are industry leaders in the fluids systems, refrigeration and food equipment, and certain other industrial markets. The Printing & Identification segment provides integrated printing, coding, and dispensing solutions for the consumer goods, food, pharmaceutical, and industrial markets. The company was founded by George L. Ohrstrom in 1947 and is headquartered in Downers Grove, IL.