NASHnal Soil Testing, LLC is a full service organization, which provides geotechnical investigation, construction inspection, and material testing services to clients in both the private and public sectors. Lab accredited by AASHTO/AMRL & CCRL and by US ARMY CORPS OF ENGINEERS (USACE). • Certified (DBE) accepted by IDOT, UPRR, INDOT, Missouri DOT, Iowa DOT, Texas DOT, Wisconsin DOT, Main DOT. Rhode Island DOT. New Hampshire DOT. New York—New Jersey Port Authority. • Certified as a Minority Business Enterprise (MBE) by the City of Chicago, as well as Cook County, IL CMS (Central Management Services-MBE/BEF) and Maine DOT. • Certified by SBA under the 8(a) BD program (NAICS Codes 541330 & 541380) for all projects where federal funding is involved.