Don't know how it's in your countries, but in Russia we have 2 terms in a case of developing software DIRECTLY TO THE COMPANY:
"property" and "authorship".

"Property" - belongs to company, which pay the money. Usually companies ask for good documentated source code :-)

"Authorship"(none of the software can be changed without developer, refrences, etc...) - belongs to developer.
Usually right to distribute software belongs to company.