Thompson, Dreessen & Dorner, Inc.

Thompson, Dreessen & Dorner, Inc. (TD2) is an engineering and surveying firm founded in 1967 with offices in Omaha, NE and Sioux Falls, SD that provides civil, structural, geotechnical, environmental, materials testing, special inspections and land surveying services; Thompson, Dreessen & Dorner supports projects of many types — residential, commercial/mixed-use, industrial, municipal/government, educational, gathering spaces and healthcare — and the company emphasizes long-term client partnerships, technical capability (including an on-site soils lab and UAV surveying) and end-to-end project support from planning through construction.