The term "large companies" refers to businesses that are relatively large in size and have a significant presence within their industry. These types of companies typically employ hundreds or even thousands of workers, generate high levels of revenue, and have extensive resources at their disposal. They often operate on a global scale and may be publicly traded, meaning they offer shares of stock to the general public. In short, large companies are major players in the business world that have achieved significant success and influence within their respective markets.