Circor International Inc is a United States-based company that designs, manufactures, and market engineered products and systems for the oil and gas, power generation, defense, and other industrial markets. The company operates through two segments. The Circor energy segment supplies flow-control solutions, valves, and services for the oil and gas, power generation, and industrial markets. The Circor aerospace and defense segment supplies fluid controls, actuation components, and subsystems for aircraft, shipboard applications, military vehicles, and so on. Circor International has a global presence, with the United States, Europe, Canada, and Asia-Pacific being its major markets.