Your KEY word is private. The companies may be limited liability, but because they are private, that means that they are privately owned. Privately owned companies are not traded on stock exchange. Often a corporation will issue stock in what’s called an Initial Public Offering. This is to raise capital and allows anyone from the public sector have access to ownership of the company through buying shares of stock. If the company were privately held, it would be owned by the employees or a few investors or a combination