Geographic Information Systems (GIS) provide an accurate, efficient and cost-effective solution to manage spatial data. TerraMark’s GIS department offers a broad range of GIS services. Because we are a multi-faceted geospatial firm, we understand the use of GIS technology as applied to the architectural, communication, construction, engineering, local government, public safety, public works, real estate, telecommunications, transportation, urban planning, utilities, and water resources market sectors.