The purpose of this research paper is to determine factors affecting the productivity of laborers in construction companies in Nueva Ecija, Philippines. The researchers find this important especially to big construction industries, as it will able to guide them in hiring the best people for the job. The methodology used in this research is a descriptive-survey with questionnaire as the main instrument answered by both the laborers and their supervisors who served as respondents of this study. The study found out that the productivity of the laborers sometimes exceeds standards or expectations which implied that they have advanced knowledge in their work. Further, age and monthly compensation were the two main factors that affected their productivity which was an indication that mature laborers with higher monthly income were more productive employees.