The thesis deals with a detailed analysis of a small construction company, and is focused on change in management and operational processes. The aim of this work is through scientific literature to find methods to change processes in the company. The first chapter is a theoretical and methodological, that analyzing the theoretical knowledge of literature. Define terms such as enterprise processes in the enterprise, methods of analyzing performance and the ways they changes- reengineering. The second chapter presents a specific company, its goals and activities. The third chapter will focus on a detailed analysis of business performance through financial analysis to detect threats and opportunities from the environment and the company from competitors by analyzing the PEST and Porter's model of competitive forces. SWOT analysis provides the results of all analysis. These are the base for any solution of the construction company in the fourth chapter, focusing on the changes in the management and production processes of the company, due to which would increase their performance and obtain better market position.