John Gilbert Architects
Specializing in sustainable developments. Expertise in housing, communities, conservation and offices. Advice on solar and geothermal heating and energy efficiency. Glasgow, Scotland. http://www.johngilbert.co.uk/
Castleblock
Architects and engineers specializing in alternative building materials and technologies with a focus on high-performance, recycled content materials. Contains concrete form, plywood substitute, and recycled rubber lumber product information.
Architects RMA
Architecture with conservation in mind. Located in Bath, UK.
Velocipede Architects
Seattle-based commercial and residential architects specializing in sustainable design.
Alliance for Green Development
Nonprofit corporation based in Albuquerque NM that promotes green development through tours, seminars, standards, and educational displays.