Georgetown CSET — Headquarters: Georgetown University, Washington, DC

Note: The source text explicitly states that CSET is 'within Georgetown University's Walsh School of Foreign Service,' confirming that Georgetown University in Washington, DC is CSET's institutional home/headquarters. The source URL domain (cset.georgetown.edu) also confirms the Georgetown affiliation. While the source doesn't use the exact phrase 'headquarters,' it clearly establishes Georgetown University as CSET's organizational parent institution.