What is Coinbase's physical address?

Excuse me, could you please clarify for me the physical location or address of Coinbase? I'm interested in knowing the exact whereabouts of their headquarters or main office, as I'm conducting some research on cryptocurrency exchanges and would like to have all the relevant information on hand. I've tried searching for it online but haven't been able to find a definitive answer. Could you possibly provide me with the address or direct me to a reliable source where I can find it? Thank you in advance for your assistance.