About Company

The Sigma Group is an award-winning, Milwaukee-based environmental engineering firm that provides planning, civil and environmental engineering, surveying, geoscience, facilities and construction services; The Sigma Group delivers integrated project solutions including site planning and design, due-diligence and environmental assessments, land surveying, infrastructure and site development, and construction support for public and private clients across the region, applying multidisciplinary technical expertise to complex industrial, municipal, and commercial projects.

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