Sean Donahoe

Marstel-Day LLC provides environmental consulting, program management and analysis services. It provides clients with concepts, strategies and plans of action for landscape-scale conservation of natural resources, climate adaptation, energy planning and 'net zero' strategies, water security, smart growth and transportation, and the management of issues relating to encroachment pressures on government and private lands, open space and habitat. The company was founded by Rebecca R. Rubin in 2002 and is headquartered in Fredericksburg, VA.