CIRCOR International, headquartered in Burlington, Massachusetts, is a global provider of mission-critical flow control products and services. The company operates across more than 100 countries with a portfolio of 19 trusted brands and a workforce of approximately 3,100 employees. Its engineering expertise spans flow control, aerospace, industrial pumps, and industrial valves.
The company serves a range of demanding sectors, including oil and gas, power generation, chemical processing, commercial marine, defence, aerospace, and life sciences. Products are designed for extreme operating conditions across land, sea, air, space, and underwater environments.
CIRCOR applies a proprietary management system known as the CIRCOR Operating System, which emphasises Lean principles, quality controls, and safety excellence to drive continuous improvement. Founded in 1999, the company states its purpose as keeping society safe, productive, and moving.






