The relevance of the subject stated in the framework of this research is the significant importance of the issues of attracting investment funds for the development of small and medium-sized enterprises (SMEs) in Kazakhstan in the context of the need to find optimal opportunities for the development of “green” and defense energy using alternative energy sources. The main purpose of this research is to explore methods of SME financing and project analysis of enterprises’ activities in the field of alternative energy applications. The methodological approach of this research work is based on the applied research of general principles of attracting financing and investment in SMEs in the context of “green” and defence economy and alternative energy. The results of this research illustrate the need for a qualitative financial analysis of SMEs to attract finance and investment. The financial performance of the enterprise during the accounting period is expressed by compiling a count of the movement of its fixed assets and assets. The classification of financial flows by type of activity makes it possible to determine the main receipts and expenditures during the accounting period. It was established that the efficiency of economic activity within the framework of an individual enterprise should be calculated before the start of the business and after the completion of the project, to develop the most reliable picture of the movement of financial investment funds. The practical significance of the obtained results lies in the possibility of their use in establishing models of business projects that meet the modern requirements of “green” and defense energy using renewable energy sources.