A business visitor is someone who comes to Canada for international business activities, and the Canadian labour market is not directly affected with it. They don’t need a work permit to come to Canada, but they require a temporary resident visa (TRV), or visitor visa to come to Canada.
Business visitors and business people are not the same. You aren’t considered a business visitor, and may need to get a work permit, if you’re doing work for a Canadian company. For example, you’re an employee sent by a foreign company to fulfill a contract with a Canadian company.
Examples of business visitor activities include someone who comes to Canada to meet people from companies doing business with their country, or to observe site visits because a Canadian company invited them for training.
Business visitors must prove that their main source of income and their main place of business are outside Canada.