The easiest way to think about your industry is to think about who your competitors are. For example, if you’re starting a restaurant, your competition is other restaurants. Think about the key players in your industry.
Who are the key companies or businesses in your industry?
Who are the biggest businesses in the industry and what are the core products and services that they sell?
Use Mergent Online to find competitor lists. This works best if you already know a leading company within your industry that you can build a list around.