Corporate use of Libre!

Hello, I would like to ask if Libre is free to use in a corporate SOHO offices.
Do the company need to purchase Libre copy or have any license?

Hello,

yes it is free, regardles of company size, number of installations etc…

Purchase: No (But donations are quite welcome and very much appreciated)
License: Yes - your are bound to “Mozilla Public License, v2.0” and some Third Party licenses for portions of the software, if you use the software.

See also this FAQ

Legal notice I’m not an advocate of The Document Foundation, thus this statement is without any warranty