The Defense Counterintelligence and Security Agency (DCSA) is conducting market research to identify industry partners capable of providing mental health evaluations for security clearance adjudication. The objective is to establish an IDIQ contract for DCSA and other Department of Defense entities to issue task orders for these services. Qualified clinical psychologists and/or psychiatrists must be approved by the government to perform evaluations, including those related to substance abuse, and provide detailed written reports. No specific budget amounts, performance location, or submission timelines are mentioned in this Sources Sought notice. Only U.S. companies and persons may respond to this request for information.