Well I just had a question in mind that a wealthy investor invest his money in any IPO before it goes public.Said that I am referring through recent Goldman Sachs and Facebook deal worth $450 Million at a valuation of $50 Billion dollars.

1.I want to know what is its procedure and how are these valuations made prior the company goes public.

2.Is is possible that a investor raise capital from investment banks,private equity or commercial banks to invest in pre-IPO at some valuation.Knowing that angel investors doesn't provide so much money,can they play their role here with a normal investor?

Note-I am not a wealthy investor nor a HNWI,I just had a question in my mind.

Can a wealthy investor invest his money in any company before it goes public / IPO? I am referring to a recent Goldman Sachs and Facebook deal worth $450 Million at a valuation of $50 Billion dollars.

1. I want to know what is the procedure and how are these valuations made prior to the company going public?

2. Is is possible that an investor could raise capital from investment banks, private equity, or commercial banks to re-invest in a pre-IPO deal at some valuation? Knowing that angel investors don't provide so much money, can they play their role here with a normal investor?