Peraton Inc., Herndon, Virginia, was awarded a competitive firm-fixed-price, single-award, indefinite-delivery/indefinite-quantity contract for electromagnetic spectrum services applied engineering, spectrum and electromagnetic environmental effects engineering analysis support in support of the Defense Information Systems Agency (DISA)/Defense Spectrum Organization. The ceiling value is $36,692,424, with the $500 minimum guarantee funded by fiscal 2021 operation and maintenance funds. Primary performance will be at DISA Headquarters, Fort Meade, Maryland; and the Mission Partner Defense Spectrum Organization (DSO), Annapolis, Maryland. Proposals were solicited via the beta.sam.gov, and four proposals were received. The period of performance is May 19, 2021, to May 18, 2026. The Defense Information Technology Contracting Organization, National Capital Region, is the contracting activity (HC1047-21-D-0002).