Consultants representing over a hundred firms from the countries of the Organization of Islamic Conference and other observers have met in Istanbul on 2nd and 3rd May, 1986. After two years of preparations under the guidance and sponsorship of The Islamic Development Bank, at this meeting The Federation of Consultants from Islamic Countries was formally established by adoption of its Constitution. Istanbul was selected as the Headquarters of the Federation.
The Constitution was further amended in 1989/1991/1999/2002/2008/2009. The Constitution is bifurcated into Seperate Constitution and Bylaws in 2011