White- and yellow-pages directory listings for all US residences and businesses, supplemented with government information from the Bureau of the Census and other agencies.
Historic company records were created annually from Infogroup's U.S. Business Database; a snapshot of the data is saved each December. Contains company name, mailing address, SIC and NAICS codes, employee size, sales volume, latitude/longitude, and many more variables about each company. Data is available from 1997-2022 in downloadable flat files. Access requires UM login.
Access the Historical Datafiles via University Library