Over the years, many organizations have been clustering around the ports in search of greener pasture and economic adventures without undertaking significant studies to ascertain reasons for such clustering. The study was therefore carried out to appraise and determine the significant factors that contributes into the decision of firms to locate investments in maritime clusters in Nigeria. Factors such as, Guaranteed security of investment (GS), Favourable Government policy (FG Policy), The ease of administration and coordination of the business divisions of a firm from the cluster location (EAC), Reduced labour cost and access to professionals (RLC) and Access to transport cum optimization of logistics and production cost (TPCO),was analyzed using the statistical method for social science (SPSS) with each having Eigenvalues of 2.992, 2.244, 1.241, 1.145, and 1.039.Recommendation was given base on the results of the analyzes