Question:  Integration of the interceptor and the Exoatmospheric Kill Vehicle is performed by a company responsible for what? 
Sentence (from "United States missile defense complex in Poland"): The first planned complex was to be located near Redzikowo, Poland, forming a Ground-Based Midcourse Defense system in conjunction with a U.S. narrow-beam midcourse tracking and discrimination radar system located in Brdy, Czech Republic.
Relevant evidence: No