The aim of this study was to assess factors affecting the performance of civil society organizations inrnNifas Silk Lafto Sub-City, Addis Ababa. To achieve the objective of this study, a mixed researchrndesign with concurrent triangulation procedure was applied. Conversely, 204 respondents wererninvolved thorough purposive and simple random sampling. Accordingly, the employees of agency forrncivil society organizations, NGOs and project signatory government bodies were selected thoroughrnpurposive sampling. Where as the beneficiary respondents were selected by simple random samplingrnmethod. Quantitative data were gathered through survey from employees of agency for civil societyrnorganizations, employees of NGOs, project signatory government bodies and the beneficiaries of thernprojects. Qualitative data were gathered through interview guide from key informants. The researcherrnused descriptive statistics and triangulation to analyze the data. Additionally, Chi-square crosstabulation correlation test was applied to assess correlation between the perception of thernbeneficiaries and socio demographic variables. Furthermore, data were gathered from both primaryrnand secondary sources. The finding of the research shows that, regulatory government bodies werernthe primary source of factors that affects the performance of CSOs. Accordingly, the corernperformance hindering factors related to the regulatory government offices were, poor servicerndelivery, poor participation, weak accountability, lack of skilled man power, lack of transparency,rnpoliticization of CSOs, weak awareness towards the projects of CSO, and corruption. Furthermore,rnlack of fund, poor cooperation with other CSOs and Medias, misusage of aids by beneficiaries, poorrnparticipation of stakeholders, absence of strategic plan within CSOs, and lack of commonrnunderstanding towards the legal framework were also the core factors that affects the performancernof CSOs. On the Other hand, the attitude/perception of employees of agency for civil societyrnorganizations and the beneficiaries towards the contribution of the projects of CSOs comprise bothrnpositive and negative outlooks. But, cumulatively the attitude/perception of employees of agency forrncivil society organizations was positive. Inversely, the contribution of the development projects ofrnCSOs was perceived as poor by the project beneficiaries. In contrast, level of income and sex hasrnsignificant association with the attitude/perception of the beneficiaries. But, religion, level ofrneducation, and age has no significant association with the attitude/perception of the beneficiaries.rnMoreover, the level of participation of stakeholderâ€™s towards development projects of CSOs was atrninfant stage. Finally, recommendations were provided for government bodies, policy makers,rnacademicians, non-governmental organizations, donors and local communities to push CSOs to startrnthe projects with identification of basic needs of the target communities and to due consideration forrnthe priority of the target communities and the government.