NTS is the Iron Range’s only locally-based, full-service environmental science and engineering company. Headquartered on the Iron Range since 1985 with a focus on northeastern Minnesota, we are committed to providing world-class science and engineering to our local customers. We believe in sustaining the local economy by utilizing local workers and vendors. Our services include environmental & geotechnical consulting; engineering & engineering support services; data management; water resource services; and site assessment & investigation. These services are provided to industrial, municipal, and government clients.