For over 100 years, Douglas-Guardian Services Corp. has been one of the leaders in providing inspection and auditing services. Based in Houston, Texas, the firm offers floor plan inspection services, leased inspection services, collateral management services and field service technology applications. Its clients range from small manufacturers, financial institutions and Fortune 500 companies. Douglas-Guardian Services Corp. operates field warehouses in the central part of the United States. Presently it resulted in the establishment of Douglas-Guardian Warehouse Corporation.