The Department of Defense (DOD) is seeking proposals for the Reasoned Cyber Visualization (RC-Vis) topic under the Small Business Innovation Research (SBIR) program. The objective of RC-Vis is to develop semantic technology that generates tiered visualizations of cyber defense coverage and interactions to assess cyber vulnerability. The technology will address the gap in reasoning and visualizing how multiple cyber defenses interrelate and the implications of known threats. The project duration for Phase I is six months with a funding amount of $250,000, while Phase II is 24 months with a funding amount of $1.8 million. Successful proposals should include an architecture for producing a modular, intermediate semantic representation, a methodology for reasoning over this representation, a constructive and/or generative approach for creating tiered visualizations, and a graphic user interface. The technology resulting from this SBIR can have applications in risk management, cyber security training, and improving cyber security posture.