This is a list of current and former companies based in the San Francisco Bay Area, broken down by type of business.
As of 2020, 38 Fortune 500 companies had headquarters in the San Francisco Bay Area.
This list includes extant businesses formerly located in the Bay Area, which have moved, or been bought out by other companies and had their headquarters relocated.
With the booming tech industry in San Francisco, businesses face a lot of pressure to keep up with the surge of new companies.
Food and drink establishments with one location are not included in this list.