The Constitutional Financing Fund of the North (FNO), created through the Constitutional Funds, has the objective of promoting the development of the North Region, constituting the main financial instrument of the National Policy for Regional Development (PNDR) for the reduction of regional disparities. With the growth and development of the region, new questions and concerns regarding sustainability in the business environment were generated. In this sense, the Sustainability Tripod and its extension, the Multiple Bottom Line, were proposed in order to analyze the economic, social, environmental, ethical and governance dimensions. In this sense, the present work sought to identify the reality of the dimensions of sustainability in the environment of micro and small companies of the Portal da Amazônia that used the resource of the Constitutional Fund for Financing of the North (FNO) for business development. To capture the data, a field survey was carried out with 111 companies that used FNO resources in the period from 2018 to 2022. After the survey, Excel was used for data processing and subsequent analysis. As a result, in the economic dimension, the ability of micro and small companies to expand their revenues was identified, with the responsibility of expanding the use of facilities and an integrated corporate composition to guarantee the economic life of the entity. In the environmental dimension, business actions involving the issuance of environmental licenses and their practices in the operation of the business were observed, while in the social dimension, the expansion of the supply of job openings and an organization dedicated to serving people could be seen. In the Governance dimension, actions of administrative responsibility, control and good practices by the companies interviewed were observed. Closing the context of the dimensions, ethics guides the business of micro and small companies surveyed. Responsibility with the business, both internally and externally, signals an important emphasis on this dimension. The outputs obtained provided the opportunity for theoretical generalizations regarding the confrontation of the reality described in the dimensions of sustainability in the business environment of micro and small companies of the Amazon portal and the theoretical framework that involves the theme.