A non-profit organization, drawing on extensive experience in traditional and alternative building and development, providing strategic support for the shift to sustainable building practices.

Advances and disseminates behavior and design research toward improving understanding of the relationships between people and their environments.

A non-profit organization that advances economic prosperity and human well being in western pennsylvania by driving market demand for green buildings and green building products.

Promotes innovative approaches to sustainable construction mainly through awards competitions and an international forum.

A source of tools, information and innovative thinking for businesspeople focused on evaluating, selecting and manufacturing environmentally preferable wood and paper products.

An association of builders, designers, homeowners, tradespeople, manufacturers, suppliers and others interested in ecologically sustainable building.

A union of national councils whose mission is to accelerate the transformation of the global built environment towards sustainability.