Which companies in Silicon Valley provide visa sponsorship for junior software engineer?
All of them you tagged plus all the other big companies
What about other startups?
You can look up any company with “2018 sponsorship” to have an idea of how many applicants they submitted. That’s how I found out my small company does them.
For start ups it’s iffier if they are super new. You can explain the cost (~5-10k legal fees I think?) to the HM and see if they are willing to do it.
https://www.myvisajobs.com/Reports/2018-H1B-Visa-Sponsor.aspx You can narrow down your search.
All three you mentioned.
Is it the current status?