Effective leadership always plays an important role in the growth and better performance of the organization. This research has been conducted to determine the impact of transformational and transactional leadership style on job success and career satisfaction. A total of 240 responses (n = 240) from various private organizations working in the capital city of Pakistan were collected using various measures of TLI Questionnaire along with items of job success and career satisfaction. Results showed positive trends of all variables. Transactional leadership is found significantly related to job success while transformational leadership and job success are found highly related with career satisfaction. The results of regression analysis show that job success is more dependent on transformational and transactional leadership as compared to career satisfaction. Managerial implications are presented based upon these results.