There are two types of membership-based NGOs under the Non-profit Legal Entities Act - the public benefit and mutual benefit association.

Another type of membership-based organization is the civic association. The Law on Contracts and Obligations provides its legal framework. The Law does not recognize it as a legal person. It is settled by a contract between two or more physical persons who unify for the accomplishment of mutual economic purpose. Employers` organizations and trade unions are also membership-based associations but the law does not treat them as NGOs. However their registration regime is governed by the Non-profit Legal Entities Act.