It turns out Goldman Sachs Group (NYSE: GS) and JP Morgan (NYSE: JPM) are essentially the only companies with these exchanges. However, according to a Financial Times article, many investment banks such as Citigroup (NYSE: C) and Merrill Lynch (NYSE: MER) plan to create their own exchanges of this type by September.
The FT article notes that this way of going public, also known as a 144A issue, is very popular with alternative investment managers because it allows them to raise permanent capital without filing to the extent necessary to file for an IPO. 144A issues can also be the first step used when a company plans to become fully public in time, such as the situation in Apollo.



