Home Innovation Research Labs - Upper Marlboro, Maryland

Sage Sustainable Electronics - Jessup, Maryland

Prince George's County Resource Recovery Division - Upper Marlboro, Maryland

Urban Grid Solar - Stevensville, Maryland

Green Geek Plants - Upper Marlboro, Maryland

Pepco - Upper Marlboro, Maryland

Energy Ventures - Rockville, Maryland

Prince George's County Organics Compost Facility - Upper Marlboro, Maryland

GC Solar - Pikesville, Maryland

RWD Consulting LLC - Washington, District of Columbia