political organisation(A group of persons organized to seek or exercise power in governmental or public affairs, by supporting candidates for office or by lobbying for action and mobilizing support for bills or governmental policies)
international organisation(An association of independent states, whose representatives gather for the promotion of common interests including defense and trade)
non-governmental organisation(Private, voluntary, non-profit organisations, acting as pressure groups. Throughout the world there are more than 5.000 international NGOs which are concerned with the environment and development, with millions of supporters)