Humans as social beings always need the help of others to do something and achieve their goals, so humans tend to form groups or organizations to work together to achieve their primary goals. This study aims to determine the effect of lean implementation on work effectiveness and efficiency and its impact on organizational performance moderated by the work environment and conducted using a quantitative approach with employees from four manufacturing companies in Cikarang as research respondents. The number of respondents, as many as 100 is determined based on the number of indicators used. The number of indicators used is 20. The sampling technique is random sampling. The results of the research conducted, it can be seen that communication has a significant positive effect on work effectiveness and efficiency (0.179), communication has a significant positive effect on organizational performance (0.268), coordination has a significant positive effect on work effectiveness and efficiency (0.194), coordination does not have influence on organizational performance (-0.154), work effectiveness and efficiency have a significant positive effect on organizational performance (0.654), planning has a significant positive effect on work effectiveness and efficiency (0.192), planning has no effect on organizational performance (-0.016), resource allocation has significant positive effect on work effectiveness and efficiency (0.209), resource allocation has no effect on organizational performance (-0.014), Structure and Integration has a significant positive effect on work effectiveness and efficiency (0.325), Structure and Integration has a significant negative effect fikan on organizational performance (-0.137), work environment has a significant positive effect on organizational performance (0.358), work environment cannot moderate the effectiveness and efficiency of work on organizational performance (0.567).