ESTEIO-ENGENHARIA E AEROLEVANTAMENTOS S. A. is a closed-capital -Brazilian company established in 1969. Acting as a consulting company, ESTEIO had its activities mainly concentrated on the development of projects and surveys of civil engineering area, mainly roads, railways, airports, sanitation, power lines and digital mapping. We have almost forty years of expertise in Photogrammetry and Aerial & Land Survey. Since 2001-02, our company has been able to work with Digital Photogrammetry & LiDAR systems. We acquired three LiDAR systems (an Optech ALTM and two Leica ALS) and a Leica ADS40 Digital Camera. Today, we own three aircrafts prepared to perform image & LASER aerial surveys. In Cadaster, ESTEIO has been working with Pipeline projects using new technologies like PCM (Pipeline Current Mapper), GPR (Ground Penetrating Radar), SBP (Sub Bottom Profilers) to locate buried structures. Our major clients are Petrobras (Oil&Gas), VALE (Mining), DNIT (Government Transportation Agency), all the major Brazilian municipalities as Sao Paulo, Curitiba, Belo Horizonte, and so on.