In which California city was Twitter founded?

Twitter was founded in San Francisco, California. The service grew out of Odeo, a podcast company whose team began developing a short-message platform in 2006. Jack Dorsey sent the first message on March 21, 2006, and the company Twitter, Inc. was incorporated in 2007 in San Francisco.

The platform’s early history is sometimes simplified because several founders are associated with its creation. Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams are generally credited as Twitter’s founders. The original internal project was called Twttr, a name inspired partly by the short codes used for SMS messages.

San Francisco is not the same as Palo Alto, although both cities are closely associated with Silicon Valley and the wider technology industry. Twitter later became a major public company and was acquired by Elon Musk in 2022. In 2023, the service was rebranded as X, while its early San Francisco origins remained part of the company’s history.