Industry codes are numbers used to describe a company's line of business. You'll see the option to search by industry codes in many business databases, as well as U.S. Economic Census. The current standard for industry codes is the 6-digit North American Industry Classification Systems (NAICS) code.
If you are researching an emerging industry or a very specialized industry it may be more difficult to locate industry overviews and other industry analysis. Some strategies you can consider using to find information:
Look for articles in popular and trade journals (magazines and newspapers) that discuss this industry
Consider what other industries are related to your industry. Are there industries that have a similar target market or supply chain?
Consider researching the industries of your suppliers and your customers (if your customer is a business).