This study investigates the corrosion inhibition efficiency of some organic inhibitors and compares its performance against inorganic inhibitors. The inorganic inhibitors used in the study were sodium molybdate dihydrate (Na2MoO4·2H2O), benzotriazole, while organic inhibitors were prepared from Azadirachta indica (AI) and Calotropis gigantea (CG) plant. The concrete specimens were contaminated during concrete preparation with 2% NaCl by weight of cement. To evaluate the effect of these inhibitors on corrosion of reinforcing steel, cylindrical concrete specimens with centrally embedded reinforcement were prepared. Further to accelerate the corrosion process the specimens after curing period were exposed to NaCl(4%) solution. Concrete cube specimens were used to evaluate the effect of inhibitors on the compressive strength of concrete. The results of the study indicated that the corrosion inhibitors investigated in this study did not have adverse effects on compressive strength of concrete. Furthermore, Benzotriazole proved to be effective in delaying corrosion initiation of reinforcing steel embedded in concrete specimens contaminated with NaCl compared to Na2MoO4·2H2O. Observing the performance of both organic inhibitors, AI inhibitor performed better in mitigating the reinforcing steel corrosion compared to CG.