Well, since mentioned earlier, that some countries have tried their luck over sending their personal hovers to space, well, multi billionaires never stooped down in front.
Apart from countries, we find two of the major big names and they are:- SpaceX and Blue Origin.
SpaceX is governed by the paranoiac Elon Musk and Blue Origin on the other hand is handled by the CEO of Amazon Jeff Bezos (wealthiest person on earth alive).
No need of mentioning the developments made by each of the two self-governed private sectors of bodies but one fact needs to be mentioned here that even after failing thrice and almost running bankrupt, Mr Musk bounced back with making the first Private Reusable Rockets named "Falcon 9", and this shown his craze over exploring outer space.