Marketing consulting companies are more about helping customers with advice and suggestions on business strategies such as industry, main products and future development.
Advertising companies can also complete the production of advertising films and newspapers, but in strategy, they are weaker than marketing planning companies. Their greatest advantage lies in mastering the media, and they can provide one-stop service from making advertisements to placing advertisements.
Cultural communication companies are more inclined to promote and implement cultural products, such as some major activities planned by marketing, and they can intervene as phased partners.
Of course, the external publicity looks similar, and everyone is willing to write more about their own scope and get more business. What kind of organization to cooperate with depends on the stage of the enterprise and what goals it wants to achieve. The easiest way to test is to bring out your practical problems and ask them to give a feasible suggestion, or look at their past cases and see if you can find something that can make you scream.