Gore began volunteering for TreeFolks in 1997 after receiving a newsletter at the office of MRGA Architecture. He began his career with The Colley Associates and continued with MRGA Architecture for a total of fifteen years designing campuses and buildings, (everything from toilet remodels to semiconductor fabrication plants) for Texas Instruments. With Beckham Design Group and Stone Soup 6 Architecture as a Senior Project Manager he spent ten years designing store interiors, buildings and sites for Whole Foods Market stores. Currently, he is working with Studio Robins Dempsey, designing and detailing modern residential experiences. Marcus has studied Architecture and Architectural Engineering at the University of Texas at Austin in their dual degree program.