NASA/Goddard Space Flight Center is seeking industry feedback for the Advanced Risk Reduction for Mission-Critical Systems (ARRMS) procurement, which requires specialized systems, software, and security engineering services to support verification, validation, and mission assurance for NASA’s critical programs. The work involves providing integrated verification and validation, mission security, and simulation/test environments for systems developed by NASA, other government entities, or commercial partners. Performance will align with NASA Procedural Requirements and standards, with services performed at NASA/Goddard Space Flight Center or other specified locations. No budget amount is specified, and the submission deadline for responses is June 10, 2026, at 12:00 PM EST. This is a request for information (RFI) for planning purposes, not a solicitation, and the government will use responses to determine competition levels and small business subcontracting goals.