This thesis is based on startup microfinancing through a crowdfunding platform. Through these characteristics, models, and development of microfinancing, I attempted to explain the importance of microfinancing in achieving social goals. It was also explained the development and encouragement of micro crediting of micro and SME’s (small and medium enterprises) in the Republic of Croatia. Institutions important for micro crediting processes, i.e. the implementation of support and incentives are the Ministry of economy, entrepreneurship and crafts, HAMAG BICRO (Croatian Agency for SMEs, Innovations, and Investments), and HBOR (Croatian Bank for Reconstruction and Development). The most frequent users of microfinancing are startup companies that have a business plan or product idea (prototype), and they lack the capital for it. In order for startup companies to acquire money, they must publish their projects through the crowdfunding platform. Then, through group fundraising, if successful, they collect enough capital to fund their projects. Crowdfunding is one of the ways to finance micro and SME’s whose roots derive from microfinance. Other sources of funding include business angels, economic cooperation funds (FGS), and venture capital. Most projects are funded through the world's three largest platforms: Indiegogo, Kickstarter, and GofundMe. In Croatia, the Funderbeam SEE platform was established in 2016. The “Include” company became the first Croatian start-up to start raising money through a Funderbeam SEE crowdfunding platform.