The members of the INGP are those national governmental institutions of 32 member states of the Organization of American States that have the maximum technical and legal responsibility related to the rectory, regulation, management, supervision, modernization or reform of public procurement. Also, the INGP is compose by the following supporting institutions – the Organization of American States (OAS), who acts as Technical Secretariat of the Network, followed by the support of both the Inter-American Development Bank (IDB), the Caribbean Development Bank (CDB), and the International Development Research Centre (IDRC) of Canada; and by other organizations that support technically and/or financially through specific projects or initiatives.