<P> Silicon Valley firms' board of directors are composed of 15.7% women compared with 20.9% in the S&P 100 . </P> <P> The 2012 lawsuit Pao v. Kleiner Perkins was filed in San Francisco County Superior Court by executive Ellen Pao for gender discrimination against her employer, Kleiner Perkins Caufield & Byers . The case went to trial in February 2015 . On March 27, 2015 the jury found in favor of Kleiner Perkins on all counts . Nevertheless, the case, which had wide press coverage, resulted in major advances in consciousness of gender discrimination on the part of venture capital and technology firms and their women employees . Two other cases have been filed against Facebook and Twitter . </P> <P> Funding for public schools in upscale Silicon Valley communities such as Woodside, California is often supplemented by grants from private foundations set up for that purpose and funded by local residents . Schools in less favorable demographics such as East Palo Alto, California must depend on state funding . </P> <P> The following Santa Clara County cities are actually located in the Santa Clara Valley and based on that status are traditionally considered to be in Silicon Valley (in alphabetical order): </P>

What city is the heart of silicon valley