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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.

Find answers to common questions in our Help Center

Visit the Help Center

Still need help? Select a topic in the form below and your inquiry will be directed to a member of our team.


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.

Submit your speaker request

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