1. Zeltinger Geotechnical Engineering PC
8916 White Spruce Rd, Bismarck, ND 58503
Coordinate: 46.90238,-100.85826
Phone: (701) 255-2371
2. Northern Technologies
2110 Lovett Ave, Bismarck, ND 58504
Coordinate: 46.79366,-100.75868
Phone: (701) 232-1822