About Us


Our staff is prepared to provide the full range of engineering surveys, topographic mapping, construction staking, boundary resolution and monumentation surveys, ALTA surveys, and as-built documentation / certification surveys for your projects.  We are accustom to adjusting ourselves, and our professionals staff, to the scale of the projects at hand.  We can provide you with small surveys, such as wetlands delineation surveys, or we can mobilize multiple crews onto large sites or construction projects. Our service resume also includes Global Positioning Systems (GPS) mapping,  Geographic Information Systems (GIS), and photogrammetric mapping.




Tom Nelson and Associates, L.L.C. currently employs a full time staff of field personnel and office personnel with an Oregon registered Professional Land Surveyor (PLS) and a Washington registered PLS. Additionally, we regularly use the services of additional part-time staff. We daily field three fully equipped field crews and have equipment for additional crews. We use modern, up-to-date technologies and equipment including Trimble total stations, Leica Automatic Levels, Trimble Ranger TDS Survey software and data collectors, and Sokkia GPS receivers. We are currently using AutoCAD 2009 with Land Development Desktop 3 (LDD) software for calculations, terrain surface modeling, and similar applications.


“We believe that we are unique in that our experience and credentials are typical of large consulting firms, yet we are capable of providing a much higher level of service which can only come from a smaller firm. “





Tom Nelson & Associates

Land Surveying & Mapping