A company will have a ticker symbol if it is publicly traded on one of the world's stock indexes. Knowing the ticker symbol for a given company is helpful in finding the most precise information and data.
You can look up ticker symbols on Yahoo! Finance. Simply type the name of the company into the search box next to "Get Quotes." If your company is not listed, check the spelling. If it is still not listed, then it is most likely not a public company.