LONMARK International is a non-profit trade and standards development association supporting the commercial, industrial, and residential control market through open integrated systems. We provide certification, education, and promotion of interoperability standards for the benefit of manufacturers, integrators, and end users. LONMARK is committed to energy efficiency through intelligent control.

National Air Duct Cleaners Association(NADCA) was founded in 1989 as the National Air Duct Cleaners Association, an organization established to promote source removal as the only acceptable practice for cleaning heating, ventilating and air-conditioning systems.  In 2008, in recognition of the tremendous advances made in the global industry, NADCA has become the HVAC Inspection, Maintenance and Restoration Association.  This transformation was initiated to help the air duct cleaning industry continue the development toward a more comprehensive scope that better reflects market conditions world-wide.

FMLink -- Your Facilities Management Resource on the Internet FMLink is a comprehensive, online facilities management publication with over 65,000 registered online subscribers. Going online in 1995, FMLink now includes over 10,000 pages of news, survey and benchmarking data, events calendars, recent and pending regulations, best practices, sustainability, checklists, magazine articles from many FM publications, discussion forums, job mart, vendor directories, and much more to support facilities professionals in their jobs. With subscribers from nearly 200 countries, FMLink also has become a leading source of advertising for those wishing to promote their products and services to facilities managers. Free access to all through http://www.fmlink.com.

Refrige.com is already the international reference portal for HVAC&R professionals around the world. Our daily news, articles, interviews, case studies, events, training, book, magazines, directory, forum and job section make the difference.Improve your work and get connected!

HVACWebConnection.com is an online Directory and Information resource for HVAC industry professionals offering current News and Events, Job Postings, Featured Products, Books, Training opportunities and more.

Park is the leading online portal for the Plumbing and HVAC industry, with the latest News and comprehensive resources for Plumbing & HVAC professionals.

AutomatedBuildings.com is an on line magazine and web resource providing the news, as well as connection to the exciting and rapidly evolving industry that automates large buildings. We have become the industries B2B web site providing connection for all new and existing automated building industry stakeholders.

The HVAC Source is the online HVAC Web portal serving the needs of the global HVAC community.