Does Coworking have a hyphen? NO!!!
Why not? Most coworking spaces prefer to spell their own name without a hyphen, because they believe their concept is fundamentally different from the relationship between two employees in an old-fashioned company.
How do you react if you see your own name spelled incorrectly? You can live with it for a while, and ask for a correction occasionally. But you might get angry if it occurs constantly, and if your correction requests go unheard. The same goes for part of the coworking community, which is quite annoyed about the hyphenation of the name. Here’s a little story about the controversy, and the arguments for and against co-working. via http://www.deskmag.com/en/coworking-or-co-working-with-hyphen-252