CIRCOR International, Inc. engages in the design, manufacture, and market of differentiated technology products and sub-systems for markets including industrial, oil and gas, aerospace and defense, and commercial marine. It operates through the following segments: Energy, Aerospace and Defense, and Industrial. The Energy segment provides engineered integrated flow control solutions, valves and services for the oil and gas and process instrumentation markets. The Aerospace and Defense segment encompasses the aerospace business, as well as the pumps defense business of fluid handling. The Industrial segment includes the remaining portion of fluid handling as well as the industrial solutions and power and process businesses that were part of advanced flow solutions. The company was founded in 1860 and is headquartered in Burlington, MA.