Human resources play an important role in company management. The purpose of this study was to determine the effect of leadership and work motivation on employee performance at PT. Prima Lestari. The method used is descriptive method with an associative approach. The sampling technique used was proportional random sampling using a saturated sampling technique method with a sample of 95 respondents. The analysis tool uses a validity test, reliability test, classic assumption test, regression test, correlation test, coefficient of determination test and hypothesis test. The results of this study are that there is a positive and partially significant effect between leadership on employee performance at PT. Prima Lestari with a contribution of 32.6%, the hypothesis test obtained t count> ttable or (6,710> 1,986). Work motivation has a positive and significant effect on employee performance by 42%, the hypothesis test obtained tcount> ttable or (8.214> 1.986). There is a positive and significant effect between leadership and work motivation on employee performance with an influence contribution of 48.3% while the remaining 51.7% is influenced by other factors. Hypothesis testing test obtained Fcount> Ftable or (43.020) 2,700), it is also strengthened by a significance of 0,000 <0.05.

Leaders must realize the importance of promotion in increasing productivity which must be considered objectively. The purpose of this study was to determine the effect of work discipline and work performance on job promotions at PT. Daya Sakti Perkasa in Tangerang. The method used in this research is descriptive with an associative approach, the sampling technique used is proportional random sampling using the census or saturated sampling method with a sample of 78 respondents. The analysis tool uses instrument testing, classical assumption testing, regression testing, determination coefficient testing and hypothesis testing. The results of the study concluded that there was a positive and significant effect both partially and simultaneously between work discipline and work performance on promotion with a contribution of 0.576 or 57.6% while the remaining 42.4% was influenced by other factors. Hypothesis testing is obtained F count> F table (50.850> 2.730) thus H0 is rejected and H3 is accepted meaning that there is a positive and significant effect simultaneously between work discipline and work performance on job promotions at PT. Daya Sakti Perkasa in Tangerang.