Partner Assessment Corp. does business as Partner Engineering and Science Inc. Partner Engineering and Science Inc. delivers due diligence services across 14 regional offices in the United States, as well as in Mexico and Canada. The company offers an array of services, such as phase I environmental site assessments, probabal maximum loss, remedial services and much more. It performs property condition and building assessments for lenders and real estate investors. Partner Engineering and Science Inc. is a member of the National Association of Government Guaranteed Lenders (NAGGL), National Association of Development Companies (NADCO), National Association of Premier Lenders (NAPL) and other Small Business Administration (SBA) lending associations on both national and regional levels.