About Company

Three Notch Group is a regional consulting firm serving the environment and infrastructure space since 1946, providing civil and site development, construction engineering and inspection, emergency response management, environmental consulting, surveying, geotechnical services, natural gas planning, solid waste and UST services, transportation, wastewater, and water infrastructure solutions. Three Notch Group combines experienced design teams, in-house AASHTO-accredited testing laboratories, and advanced geospatial technology to guide public entities, private enterprise, and the petroleum industry through planning, permitting, construction oversight, and remediation, and the company positions itself as a long-standing, trusted partner focused on durable, compliant, and cost-effective project outcomes.

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