Boeing Defense, Space & Security - Wikipedia
https://en.wikipedia.org/wiki/Boeing_Defense,_Space_&_SecurityBoeing Defense, Space & Security was headquartered in Greater St. Louis north of St. Louis Lambert International Airport in the northern St. Louis suburb of Berkeley, Missouri until January 2017, when top executives and support staff were relocated to Arlington, Virginia. There are also significant operations in nearby Missouri communities, such as Hazelwood and St. Charles. It remains one of the largest employers in Greater St. Louis with 13,707 local employees as of 2018.