Construction Machinery Cluster (İŞİM) has more than 150 members; it consists of sub sectors as; Light Construction Machines, Earthmoving Machines and Spare Parts, Concrete Plants, Crushing-Screening Facilities, Asphalt Plants, On Vehicle Equipment, Transmitter – Conveyor Systems etc. Clustering means correlating the companies and institutions together with them horizontally and vertically that is situated in a specific geographical region. First of all, in clustering, the Companies have some benefits from the advantages occurred as a result of the geographical neighborhood to each other. In addition to this, the challenges that cannot be performed alone by the companies due to insufficiency of the finance and human resources of the companies are performed when the companies act together.