Which enterprise companies use Unix and Unix-like operating systems?

Question

I was wondering who uses Unix or Unix-like operating system at enterprise level.The Fortune 500 Company I work for completely decommissioned HP-UX and AIX many years ago.Are there big companies that uses *BSD, Solaris or derivatives today? If yes, why? Is it only legacy or there are specific reasons?

t312227 · Accepted Answer

imho (!)idk ... but i have to admit, i'm a bit baffled right now:afaik: linux is a unix-like operating system ...first sentence / first line:* https://en.wikipedia.org/wiki/Linux* https://en.wikipedia.org/wiki/Unix-likeso the answer is: all of them ...and the medium sized businesses, and the SOHO businesses and every private person which uses the internet!?just my 0.02&euro;