THOMO reference model - a finite element model of the 50th percentile male based on simplified GHBMC model served as the basis for most of the virtual tests in THOMO project - lateral and frontal Kroell type thorax loading. In order to compare and validate the model’s performance with cadaver tests one of the aims of the THOMO project was to develop reliable methodology to modify/scale the reference model geometry to fit global dimension of chosen PMHS and locally adjust the rib cage. Such modification of the reference model is further called personalization. Developed methodology combines global dimension scaling with locally controlled shaping of the rib cage area. Combination of scaling dependencies between separate parts of the body segments and layers together with quite amount of control points established on thorax, basing on CT scans of real cadavers and followed by application of kriging based morphing algorithm, makes the overall process not trivial to handle. Presented methodology introduces backgrounds of applied approach, illustrates main steps of the procedure, as well as geometrical and numerical validation of target models. It is followed by examples of applications the personalized models were used for, like direct validation of experimental signals and the model’s output, comparison between global scaling and newly proposed personalization method in terms of model’s differences in geometries and performance, etc. As a general result of THOMO project, by using personalization methodology, 6 personalized models (4 representing 50th male cadaver’s geometries and 2 resembling 5th small females subjects) have been successfully developed that may serve for any further in-depth analyses.