- Energy Efficient Building Association - North American building science and applications consortia; provides training, criteria, and research coordination for building industry.
- Howard Associates / Building Environmental Science & Technology - Recognized energy efficiency and green building consulting group; builder services, internet support, training and technical evaluations.
- Lights of America - Manufacturer of advanced energy efficient lighting and fixtures
- National Home Energy Ratings Software and Training - Energy Rating software for UK and World use. Calculates Co2 emissions and total running costs /UL>
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