The paper makes a preliminary assessment of the sector and Air Conditioning Mechanical ventilation, based on some of the companies belonging to this sector in Colombia. This is an area formed by a group of about 42 companies which are involved in designing, manufacturing (in some cases), assembly, System Maintenance and advice air conditioning and mechanical ventilation sectors: hospital, pharmaceutical, commercial, and residential, among others, which propose a solution to the requirements given by their clients, seeking to provide a service that complements the products and/or services from them.