Dun & Bradstreet has been a major publisher of business information from its earliest iteration back in 1841. This page includes collection materials available at the Library of Congress related to the Census of American Business series.
Continues Dun's Census of American Business. This is a statistical reference work on some nine million U.S. businesses. The directory displays the compilation of the number of establishments in each line of business and groups them according to sales volume and number of employees for three geographic levels: national, state, and local.
Continued by D & B Census of American Business. This work provides numeric information on U.S. business establishments arranged by 4-digit SIC codes for primary and secondary lines of business. Establishments are also grouped according to sales volume and number of employees, for which information is provided at three geographic levels: national, state, and county. The Library's holdings are complete.