This research aimed to investigate the influence of job satisfaction, supervision, and work discipline on job achievement among employees at the Tirta Hita Buleleng Drinking Water Company. The study involved 52 employees as samples and utilized questionnaires as the data collection tool. Simultaneous influence was tested using an F-test, while partially influence was tested using a t-test. Performance variables included job quality, work quantity, and timeliness. Job satisfaction variables encompassed aspects like salary, job, promotion opportunities, relationships with superiors, and interactions with colleagues. Supervision variables included setting standards, performance measurement, performance assessment, and corrective actions. Work discipline variables included timeliness, efficient resource utilization, job responsibility, and compliance with rules. The data analysis results indicated a positive and significant influence of job satisfaction, supervision, and work discipline on job achievement among employees at the Tirta Hita Buleleng Drinking Water Company. Supervision had the most dominant impact on job achievement. These findings implied that these variables collectively contributed positively to improving job achievement at the water company. The research findings had significant implications for company management in their efforts to enhance employee performance and overall job achievement. Furthermore, this study could serve as a foundation for further research into other factors that might have affected job achievement among employees at the Tirta Hita Buleleng Drinking Water Company.