Green Building provides knowledge and best practices on greening your building practices, developing your green business or project. David Johnston winner of the International SAM/SPG Sustainability Pioneer Award in 2007 has been training and educating builders on green building practices and helping organizations develop sustainable business practices. Before Corporate Social Responsibility David Johnston was helping to create an industry that addressed the importance of the environment, people and profit.

ENERGY STAR is a government-backed program helping businesses and individuals protect the environment through superior energy efficiency.

Updated daily by LEED experts, Green-Buildings.com is a free education and training website that provides practical information on all aspects of LEED and green buildings.

Siemens USA provides technology and innovation in the fields of Healthcare, Energy, and Industry and Infrastructure

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

Everblue Training Institute offers LEED Training, LEED Certification Exam, Solar and Wind Training, and BPI Energy Auditor Courses

Trusted Name in Construction Cost Data. RS Means offers Construction Cost Data Products and Services, cost estimating books, CDs, City Cost Indexes and online services

Autodesk is a world leader in 3D design software for manufacturing, building, construction, engineering, and entertainment. Since introducing AutoCAD in 1982, Autodesk has developed a broad portfolio of 3D CAD software programs to help users visualize, simulate, and analyze the real-world performance of their designs.