Go to a computer and log on to the Internet. Select the company that you want to learn the stock symbol of on the stock exchange and enter it into the search bar.
Pull up the company's website on your screen and scan the page for the Investors section. All companies that are publicly traded have an Investors section or, at least, an About Us page in which there are company representatives that are available to answer any present or potential investors' questions.
Search for the various methods of making contact with the company reps. Many offer a page listing the frequently asked questions by most investors, a Live or Chat section or a listed phone number. However, if you decide to make contact, just ask the rep for the company's stock symbol and write it down.