Window and Door Manufacturers Association: promoting the interests of the window, skylight and door industry and enhancing the Association's position of leadership.

Design-Build Institute of America: promoting the widespread and successful utilization of the design-build project delivery method throughout industry and government.

Architectural Woodwork Institute: committed to the advancement of architectural woodwork.

Construction Specification Institute: advancing the process of creating and sustaining the built environment for the benefit of the construction community by using the diversity of its members to exchange knowledge.

Door and Hardware Institute: providing its members with the skills and competencies to compete successfully in the marketplace of today and tomorrow.

Scientific Certification Systems: a certifier of multiple facets of the food industry and of the environmentally sound management of forests, marine habitats, and a wide variety of manufacturing-related businesses.

Intertek Testing Services ETL Semko/Warnock Hersey: the world's largest product and commodities testing organization.

Underwriters Laboratories: the leader in U.S. product safety and certification and one of the most recognized, reputable conformity assessment providers in the world.
*UL is not affiliated with The Maiman Company and does not endorse the Web Site.

Window and Door.net: Home of Window & Door Magazine, the information source for the fenestration industry.

National Fire Protection Association: Reducing the worldwide burden of fire and other hazards on the quality of life by providing and advocating scientifically-based consensus codes and standards, research, training, and education.