Millennium Engineering and Integration
Defense and Space ManufacturingVirginia, United States51-200 Employees
Based in Arlington, Virginia, Millennium Engineering and Integration is a midsize defense and space engineering firm founded in 1995 and now part of Astrion. The company provides engineering services and hardware and software products to government and commercial clients, advancing space systems, weapon systems, and next-generation technologies across ground, air, and space domains. Its capabilities span the systems engineering lifecycle, from concept development through operational testing, and it maintains quality-focused operations through ISO 9001, AS9100, and CMMI Level 2 certifications. Its customer base includes the Department of Defense, NASA, DHS, and other government bodies, along with select commercial partners. In 2021 the company participated in a Space Force technical and engineering support effort with the Space and Missile Systems Center.