High Quality Content by WIKIPEDIA articles! SME finance is the funding of small and medium sized enterprises, and represents a major function of the general business finance market – in which capital for different types of firms are supplied, acquired, and costed or priced. Capital is supplied through the business finance market in the form of bank loans and overdrafts; leasing and hire-purchase arrangements; equity/corporate bond issues; venture capital or private equity; and asset-based finance such as factoring and invoice discounting.