Ask HN: Visiting SF, would like to visit startups/tech companies

Hi,

My girlfriend and I will be visiting San Francisco for the first time between October 11th-18th.

We already have our itinerary for the places we want to visit but we also want to try and visit some startups/tech companies.

My girlfriend is a UX/UI designer and is interested in learning how design is implemented at various companies.

I am a software engineer and interested in learning about the technology used at various companies. In particular, I am interested in companies that have an Android application. I'd like to get a better idea on how companies build and test their Android applications.

My contact info is in my profile.

Thank you