Efficacitas Consulting was founded in 1994 with the mission to work for sustainable resource management throughout Latin America, providing consulting services in energy, environment and sustainable development. Efficacitas fulfils its mission with professional competence and ethics by providing technical assistance, driven by excellence and innovation, to companies, governmental and nongovernmental organizations involved in natural resource management and conservation. Works performed by Efficacitas include the preparation of studies where emissions to air were measured, calculated and/or modelled; among the experience of the company is the preparation of the Air Quality Management Plan for Guayaquil City, which included an emission inventory of pollutant gases coming from the industry and mobile sources, as well as the modelling of air quality for a selected region. Efficacitas have performed environmental impact assessments for the most important hydroelectric and multipurpose projects; a major environmental aspect reviewed in this sort of assessment is the use of natural resources (such as land and water) in an efficient way, in order to achieve sustainability by protecting the environment and the society. A proper management of land use at the borders of reservoirs is a key aspect in the preparation of environmental management plan. Projects completed by Efficacitas have been reviewed by multilateral finance institutions such as the World Bank, Interamerican Development Bank (IADB), CAF, US E‐Im Bank, BNDES, among others. Efficacitas Quality Management System is certified under the ISO 9001:2008 Standard.