Cavitation performance improvement of an industrial cryogenic pump is studied in this paper. A variable pitch helical inducer is designed and implemented to the existing pump assembly to enhance the cavitation performance in terms of Net Suction Positive Head (NPSH). Initially, Computational Fluid Dynamics (CFD) simulations of the pump assembly are conducted for the original configuration and the pump with new proposed inducer to determine the cavitating (two-phase) and non-cavitating (single-phase) performance. The Rayleigh-Plesset cavitation along with homogeneous fluid model is used to study the bubble dynamics under the assumptions of single fluid undergoing no thermal energy transfer between each phase. Experimental tests are conducted on the existing configuration of the pump and also with the new variable pitch inducer to determine the true performance in cavitating and non-cavitating operating conditions. Experimental results are compared to the simulations to validate the accuracy of the proposed numerical modelling and assumptions. NPSH with 3% (NPSH3) differential head drop is employed as a criterion to identify the true cavitation performance of each inducer configuration. It is found that, NPSH3 performance can be improved by 25% by replacing the existing inducers with the proposed new variable pitch inducer. In addition, with the new inducer there is minimal impact to the existing single-phase pump performance.