Companies to stay and even more to grow in the market need sources of financing. This article characterizes various financing mecha- nisms, both internal and external, differen- tiating the cost, the access requirements and the profile of the company to be financed, for each mechanism. The emphasis of the article is the medium-sized companies of the Colombian agricultural industry, due to its great social relevance in relation to food security, and its economic importance as seen from the contribution of the sector in GDP, exports and employment. The purpose of this article is to generate knowledge of the different financing alternatives for medium-sized entrepreneurs in the Colombian agricultural industry.