It is important to know the company you choose doing business with. It is important to know where the company is located, and who is holding the company.
If you cannot find the information, it is a red flag. It is information you must know in advance.
If you find the information, Google the shareholder/s names and try to get more information about the shareholder/s.
Ask yourself, where are the shareholder/s from? do I want to do business with such people? etc.
Shareholder/s are appointing the company’s directors. In most cases directors will try serve the people who appointed them. Directors are managing and controlling the company you are doing business with. Therefore, the shareholder/s mapping and background process gives you more information about your financial risk.