In order to participate in any event activating in Santa Clara county, you will need to have a county health permit. The cities under the county will sometimes require additional permits.
Business licenses are issued by the city where you are doing business. Each one should be acquired directly from the city. Click on the city links to find out more information about business licenses per city.
Stanford University COI
Anyone participating in the Stanford POD will require to acquire insurance naming the board of trustees of the University of Stanford like the example below.
City of Mountain View
City of Palo Alto
City of Cupertino
City of Sunnyvale