The purpose of this book is to analyze the effectiveness of solid waste management strategies adopted by manufacturing companies in enhancing the organizational sustainability in Beni, Democratic Republic of Congo. This study adopted a descriptive research design. The target population for the study comprised 506 permanent employees of the manufacturing companies with a sample of 152. Statistical Package for Social Sciences (SPSS 23.0) was used for subsequent analysis. The study revealed that the three solid waste management strategies (reduction, re-use, and recycle) explain only 51.3% of the effectiveness on organizational sustainability of manufacturing companies. However, if all other solid waste management strategies are kept constant at zero: a unit increase in solid waste reduction strategy will lead to a 27.6% (0.276) increase in organization sustainability of manufacturing companies; a unit increase in solid waste reuse strategy will lead to a 26.4% (0.264) increase in organization sustainability of manufacturing companies; while a unit increase in solid waste recycling strategy will lead to a 19.1% (0.191) increase in organization sustainability of manufacturing companies