Argon ST is a subsidiary of The Boeing Company headquartered in Fairfax, Virginia, United States, that specializes in systems engineering and provides command and control products.

Together they are a part of Boeing's larger Electronic and Information Solutions (E&IS) division, which is headquartered at Argon ST's original location in Fairfax, Virginia.

Electronic and Information Solutions is a part of Boeing Defense, Space, and Security (BDS), which are headquartered in Arlington, Virginia and St. Louis, Missouri, respectively.

In August 2006, Argon ST acquired Innovative Research, Ideas & Services Corporation (IRIS), the authors of the sensor fusion software Transducer Markup Language (TML).

On July 3, 2006, Argon ST completed the acquisition of San Diego Research Center (SDRC), achieving a corporate goal of being able to provide an end-to-end sensor system.