I guess you are familiar to this term. Corp means the cooperation. In business term, it is a kind of business for running cooperation. This is a kind of group who is running business with invest money to create good capital for company to run.
Actually, this kind of business is very popular all over the world. When you start from small company and small business you won't run this kind of business. However, if you want to expand your company and size of business, you need to apply this. There are many advantages in this method, however, you need to learn in order being free from risks and losses.