https://phys.org/news/2018-10-california-law-company-boards-spotlights.html

After years of public and internal pressure to increase gender parity at the top of the corporate ranks, few of the biggest companies have zero female board directors. But men vastly outnumber women on boards across nearly every industry, a landscape that has remained stubbornly unchanged despite years of debate and studies on the subject.

Facebook, Apple and Google's parent company Alphabet are among the several hundred companies headquartered in California that would have to add women to their boards by 2021 to comply with the law.