Using a consultant to establish a company in another country is certainly the first step in a well-advised internalization process to open the company to new markets, but the function is different when it comes to management or tax planning.
The mere establishment act, without any help from a professional consultant, even if it is cheap and attractive, is an activity recommended for professionals with extensive expertise on local and international legislation concerning the budget and treaties, who are able to highlight and resolve fiscal issues, of international, national and personal nature.