Tigenco Graha Persada is a National Company Specializing in Topographic and Hydro-oceanographic Survey, Cadastral Survey, Sattelite Imagery and GIS, Geotech Investigation, Coal Exploration ,Geology and Engineering Design. Our Company has completed 700+ Projects since its inception in 1985. We are a well respected company that strives to give the best results to any survey works. Our Clients include range from Government Institution, Oil and Gas Industry, Mining, Infrastructure, Coal Exploration, Geotech Consultants, Foreign Aid Organizations, Developers, Contractors Our Services Include:- Topographic Survey, Construction Survey, Boundary Survey, Cadastral Survey, Reconaissance Survey- Bathymetric Sounding-single, dual wave, Wind, Wave, Current Measurments, Float Tracking, Tidal Observation and Prediction, River Survey- Sattelite Imagery Procurement, Aerial Photogrammetry, GIS, Map Digitizing- Geotech Drilling, Geological Drilling, CPT, Pressuremeter Testing, PS-Well logging-crosshole-downhole, Permeability Testing-slug-pecker, Geoelectrical Survey, Resistivity, Geophysical Logging, Geological Mapping and Prospecting- Soil and Rock Index Properties, Strength Test, Density Tets, Soil Lab Services-mobile, Earthworks Supervision and Quality Control- Geotech Engineering, Slope Stability, Grading Design, Bridge Design, Jetty Design, Drainage