Abstract
The increase in the number of production firms intensifies the competition of enterprises. For this reason, the lean techniques, which aim the maximum production with minimum waste and cost, came into use. However, firms experience some difficulties while implementing the lean production in its entirety. In this study, a survey is presented for investigation of full compatibility with lean production; in-depthanalysis of the active use of all techniques, investigation of the adaptation process and analysis of theadoption of lean manufacturing practices. As a result of the survey, it is seen that firms investigated in this study implement lean production techniques actively and most of the lean production techniques should be used together.