The term Internet of Things (IoT) is rapidly growing as an important aspect of our everyday lives. IoT is all about the networking of physical devices, such as machinery, home appliances, wearables etc. in such a way, which enables these devices to connect with each other, exchange data and produce meaningful insights out of it. This new technology concept has introduced new disruptive business models in all industries and is gradually shaping the future of global business. The Industrial IoT (IIoT) is the IoT focused on Industry, either manufacturing or service sector, providing powerful financial and operational performance improvements. This diploma thesis focuses on the financial viability of investing in a Small-Medium Enterprise (SME), providing IIoT applications and services in the Greek market, specialized in providing solutions for the Plastics & Rubber Manufacturing Industry. Chapter 1 of the study begins with the executive summary of the project, providing the major insights about the firm and its overall feasibility, along with the socio-economic impact on the Greek economy. Chapter 2 presents the introduction and the background of the feasibility study, along with its scope, objectives and limitations. Chapter 3 presents the market feasibility of the project along with the methodology used to conduct it. Chapter 4 presents the technical feasibility of the project, covering main issues such as raw materials, engineering and technology used, organizational structure, human resources, location and project management. Chapter 5 presents the financial feasibility of the project, through the use of financial ratios, sources of financing and financial statements. Additionally, the financial assessment of the project is presented, though the use of proven methods. Finally, the chapter closes with the final appraisal of the project and its impact on national economy and society.