Contact
Customer support
GBCI’s support team provides expert technical answers to the quickly expanding green building industry supporting certification and credentialing, and ensuring a streamlined experience for customers.
Have a question? We’re here to help.
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By phone
We are available for calls Monday through Friday from 9 a.m. to 5:30 p.m. Eastern time.
Within the United States: 1-800-795-1747
Outside the United States: 1-202-742-3792
Speaker requests
Looking for a GBCI representative or executive to speak at your event? Complete our form, and a member of the Communications team will get back with you.
Please note, preference will be given to USGBC members and member organizations. Please provide at least six weeks advance notice of your event.