Identify the people involved for the buyer and their role

The contracting authorities are :

1° legal entities governed by public law ;

2° legal entities governed by private law that have been created specifically to meet needs in the general interest that are not industrial or commercial in nature, including :

a) or the activity is mainly financed by a contracting authority ;

b) or the management is subject to control by a contracting authority;

c) or the administrative, management or supervisory body is made...