Simple Solar Systems:  Website of Colorado’s only NABCEP-certified PV Installer and Ecofutures’ renewable energy partner, Joe Callahan
	Eco Handyman Boulder-based green remodeler and energy systems designer
	Alpen Energy Group  Boulder-based window manufacturer leading the way in high efficiency window design & production.
	Continental Control Systems Manufacturer of pulse-output meters used for data monitoring in Solar Harvest and other zero energy homes.
	Coolerado   Manufacturer of the most efficient air conditioners made.
	Sustainably Built  Provider of home energy audits, HERS ratings, Energy Star ratings, and energy systems and building design consulting for high performance homes
	Boulder Green Building Guild:  A guide to Boulder's green builders, architects, vendors and sustainable interior designers
	City of Fort Collins Colorado New Home Choices  A guide to choosing and designing new homes with energy efficient, high performance home features
	E-Star Colorado:  Home of Colorado’s Home Performance with Energy Star program, provides guides to local home performance auditors and regional energy efficiency events
	Built Green Colorado:  The largest green building program in the nation with over 100 builder members across the state, Built Green Colorado provides resources to encourage green building practices and green home ownership
	Colorado Straw Bale Association: Colorado’s network of strawbale builders, designers, and educators offering conferences and events throughout the state.