Organisations including firms implement IT in order to improve the quality and the speed of internal communication and decisions. The article investigates whether IT implementation, in fact, improves the variables constituting the organisational IQ, when the rules and system of the internal communication and decision are measured with organisational IQ, through evaluations by experts (researchers, IT consultants and CIOs). The results suggest that while IT can contributes to internal knowledge dissemination and continuous improvement, other principles are not necessarily affected.