You don't. That was the only appropriate answer I could think of, so I didn't respond to your first posting. Let me assume you already know that a vast majority of penny stocks are either a wild speculation or an outright rip-off. You have to go through some form of brokerage account in order to buy and sell these stocks. Here's a rather complete article from NerdWallet that sums up the process: "Best Brokers for Penny Stocks" When a company is making an initial public offering of a penny stock, it might be possible to go direct to the company to purchase shares. That is even risker. But if that's the way you want to go, read this. But please do not consider this activity a part of your investment portfolio. Personally, I think you have a better chance of making money -- and a lot more fun -- in Las Vegas!