Nathan D. Maier Consulting Engineers, Inc. (NDM) is a full service Civil Engineering and Land Surveying firm and a Texas Corporation. NDM is certified as a HUB (1751944112900) and by NCTRCA as a Woman-Owned Business Enterprise (WFWB49654Y0712). NDM is also a TxDOT precertified firm (CCIS 706). NDM was founded in 1984 and has extensive experience in a variety of public and private projects.