There is an international fellowship of many schools and branches around the world, all of which offer courses based on those which have been developed in the School of Economic Science in London and which apply the same principles.

Each School is an independent organisation with its own leadership and administration, but they are united by a common approach to philosophy and its practice. Contact is maintained by regular visits and interchanges between students. Schools around the world are known as School of Economic Science, School of Philosophy, or School of Practical Philosophy. Although the names may vary, the underlying principle of all these schools is the same.