Abstract
The present study has contributed to assessing the current state of Lean Six Sigma (LSS) implementation in Small and Medium-sized Enterprises (SMEs) in the Kingdom of Saudi Arabia (KSA). The study has also identified the significant success factors, ascertaining the benefits obtained and barriers obstructing the application of LSS in SMEs in KSA. The researchers were able to collect a total of 323 valid responses from the participants of the study without any missing from 2019 until 2020, using quantitative questionnaire which was distributed to a random sample to achieve the study's objectives. The findings of the survey highlighted that the most important critical success factors in implementing the LSS in SMEs are the availability of useful tools for communication and information, and a high level of awareness of the importance of LSS implementation in SMEs among the managers and employees. The results also showed that the essential benefits of applying LSS are that its application, this will reduce wastage and increase employee engagement and satisfaction. The lack of knowledge concerning LSS represented the most effective barrier hindering the implementation of LSS in SMEs in KSA. In conclusion based on the study's findings, Saudi SMEs must conduct workshops to spread knowledge concerning the effectiveness of LSS. Also, SMEs need to set a clear vision and objectives to ensure the successful implementation of LSS. This study can be of benefit to academicians and researchers as it adds to the technical areas of LSS knowledge, SMEs managers and directors and to the decision-makers in both governmental and private sectors by offering great insight into the significance of implementing LSS in SMEs for their financial growth..