System Downtime Notification
From Saturday, August 30, 2014 from 8:00 am EST to 11:59 pm EST, will be offline for site maintenance.
Email us or call 1-800-795-1747 for assistance. Thanks for your patience.
Please upgrade your browser. This site requires a newer version to work correctly. Read more

Viridian is an independent sustainable building consulting firm specializing in LEED Consulting, Commissioning, Energy Services, Building Testing, Property Condition Assessments, Cost Segregation, and Residential Services.

October 29, 2007 - Present