Residential Energy Services Network, Inc.

The Residential Energy Services Network (RESNET) is a non-profit, membership based organization with the public mission, “To make the energy use of all homes transparent, thereby driving residential sector energy use toward net zero.” RESNET pursues this goal through its network of accredited Quality Assurance (QA), Training, and Software Providers. These delegated entities in turn provide third-party QA, training, and software services to rating companies.

They can be contacted here: https://www.resnet.us/about/contact-us/