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Existing Customers
Customer Technical Support
From rollout plans to integrations we’re here to help. Please email support@mattermost.com or visit below.
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Mattermost Mailing Address
2100 Geng Road, Suite 210 Palo Alto, California 94303 United States
Customer Billing Questions
Please email ar@mattermost.com or call (650) 667-8512 and ask for “Accounts Receivable.”
Prospective Customers
Our experts can help you find the right solution, explain pricing options, or answer any of your questions.
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Mattermost Vendors
For vendor billing questions, please email ap@mattermost.com or call (650) 667-8512 and ask for “Accounts Payable.”