The goal of this research is to prove the impact of organizational culture, transformational leadership, and work motivation on the work performance and OCB of ABA Kindergarten teachers and employees in Yogyakarta. This study employs a quantitative research methodology. Data was collected from 207 respondents in 56 ABA kindergartens in Yogyakarta. A questionnaire survey was created using Google Forms to collect data on a Likert scale of 1–7 and analyzed using SPSS. Empirical research findings show that more than 60% of respondents chose an 'agree' scale on the questionnaire items. Reinforcing the findings, organizational culture, transformational leadership, and work motivation proved to have a positive impact on performance and OCB. This study looks at a wider range of variables than earlier ones did, so the information it gives is more complete and useful. Respondents who fill out the survey and a bigger range of scales make the research more objective and representative. This study helps teachers and staff manage schools better. Human resources manages work performance and OCB. This study may promote public sector progress generally.