[DerekQ]

Connecting a company looking to raise money with a person or company with money to invest is an entire industry. It often falls under terms like "private equity fundraiser" or "corporate finance", though corporate finance encompasses a lot more.

Typical rates of compensation for the middle man or company run from 1% to 8% -- it depends on the deal you strike with the company looking to raise money.

Of course, you need a contract laying out your cut. And... you need to be aware that you open yourself up to being sued down the road by the investor if his investment goes south and he loses money. This happens a lot -- especially when it's a private investor and not a company investing the money. For this you'd need Professional Indemnity insurance, and you'd need it for the next 10-20 years - the lifetime of the deal, basically.