The business concentration related to post-harvest and agro-food processing is scarcely widespread in the scientific literature, especially in emerging countries such as Peru. The objective was: a) to know the territories where the companies dedicated to the cultivation, processing and conservation of cereals, vegetables, legumes and fruits are located in Peru, b) to know the quantity of these companies and c) to identify the size of these agro-food companies. Material and method: This is an observational, descriptive and transversal study. The International Standard Industrial Classification version 3.0 and the classification database of the companies that reported the Ministry of Production from January 1 to December 31, 2015 were used. In Peru there are 7995 companies; 5042 are dedicated to the cultivation of cereals, 908 to vegetables and legumes and 2045 to fruits, nuts and plants for beverages and spices. The territories that host these economic activities are: Ucayali with 848 (16.8%) companies, Lima with 281 (30.9%) and Madre de Dios with 518 (25.3%) companies respectively. For the elaboration and transformation of food products, Lima is the city that houses 4683 companies, more than the rest of the cities. According to the business size there are 7828 (97.9%) and 10720 (98.3%) microenterprises corresponding to the cultivation and processing of these foods. Conclusions: It is important to know the socio-economic and agrifood reality, public-private investment to enhance the human capital and the economy of the Peruvian territories with more sustainable and environmentally friendly activities