Objective: Tumor necrosis factor, Lipid Profile, and β-hCG are markers that proved to be changed with preeclampsia. We aim to study their combined use as predictors of the severity of preeclampsia. Methods: A case–control study was conducted in our University Hospitals on pregnant women complicated by mild or severe PE and healthy normal pregnant women as a control group. Samples of these markers were taken at a gestational age between 28 and 36 weeks. Results: A total number of 90 pregnant women were selected. The first group was mild PE (17 cases), the second group was severe PE (28 cases), and the third group was normal pregnant women (control group 45 cases). There is a statistically significant positive correlation between β-hCG, triglycerides, Cholesterol, LDL, VLDL, and Tumor necrosis factor. These markers correlate with the severity of PE. HDL demonstrates a statistically significant negative correlation with TNF-α and β-hCG. Conclusions: There is a strong correlation between the increase of TNF, β-hCG, triglycerides, LDL, and cholesterol in cases of PE. These markers are associated with the severity of PE. These markers can be incorporated into a predictive model for PE.