A group or concern is an economic unit in which legal persons and corporates are organisationally linked. The term group company refers to legal persons and companies that are affiliated in a group or concern. In the Netherlands they usually fall under one parent company.
Being part of a concern has certain benefits under Dutch law. For example regarding to the requirements to draw up financial statements. If the parent company includes the financial information of its subsidiaries in consolidated financial statements, the subsidiary company is not required to draw up separate financial statements.