Most businesses are classified in line with the industry they will operate in. Some of these are large firms that give attention to a specific sort of industry, including Apple or perhaps Walmart, while others specialize in a particular type of service or product. Examples of industrial sectors in which businesses may conduct include marketing and advertising, mattress creation, real estate, and oil. ExxonMobil, for instance, works business by giving oil to customers. Additional industries contain restaurants, stores, and blog link other small companies.