Advanced Onion Inc. (AO) is a SDVOSB technology company structured around People Analytics, IT Support Services and Customer Contact Center Operations. The firm's princpals provide application development, modernization, sustainment, and cloud migration; IT Support Services (ITSS); related information technology and personnel security support services; and customer call center operations and technology services. Customers include the Defense Manpower Data Center (DMDC), Office of Personnel Management (OPM), Defense Counterintelligence and Security Agency (DCSA), Defense Human Resources Activity (DHRA), US Marshall Service, Naval Post Graduate School (NPS), Defense MicroElectronics Activity (DMEA), and others.