About Company

SGI Companies (Surveyors Group, Inc.) is a Roseville-based civil engineering and land surveying firm that has provided regional engineering, mapping, and surveying services since 1988, offering services that include parcel mapping, site design, construction staking, building layout, condominium conversions, and modern technologies such as 3D scanning and UAV/drone surveys. The company focuses on delivering end-to-end project support from conception through construction, working with public and private clients on engineering, mapping, planning, and surveying projects to create quality, practical solutions.

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