This is a Sources Sought Notice for market research to identify potential sources for support, maintenance, and expansion of the System Advisor Model (SAM) software. The work includes software architecture improvements, new modeling capabilities, user interface enhancements, and cross-platform support for renewable energy technologies. The National Laboratory of the Rockies develops and maintains SAM, an open-source platform for evaluating technical and economic performance of solar, wind, and geothermal systems. The effort supports annual software releases and ongoing platform modernization. No specific budget, performance location, or submission timelines are mentioned.