The aim of this study was to explore psychotherapist characteristics associated with work involvement and work satisfaction among psychotherapists in Germany. In total N = 1358 psychotherapeutic practitioners with different levels of training participated in our nationwide online survey, we assessed work involvement and its sub-concepts of healing involvement (HI), stressful involvement (SI) and work satisfaction (WS) using the Therapist Work Involvement Scale (TWIS) and combined HI and SI into practice patterns. In our study, the levels of HI and WS were high, whereas SI was low. The percentage of effective practice patterns was higher than in previous studies, whereas challenging practice patterns were lower. HI, SI and WS were associated with gender and age, indicating that male and younger participants showed more SI but less HI and WS. Psychodynamic therapists reported more SI and WS. The number of weekly therapy sessions was related to HI, SI and WS. Furthermore, HI was positively related to WS and negatively to SI, while SI and WS were negatively correlated. Our results indicated that therapist characteristics influenced their work involvement and work satisfaction. Therefore, therapist training and interventions should consider individualized approaches based on the relevant therapist characteristics to foster HI and WS while reducing SI. One could speculate whether the changes in psychotherapeutic training may have already contributed to improved practice patterns over the last decades.