ReferenceUSA Company Directory. Directory of over 10 million U.S. private and public companies. Provides addresses, contact names, estimates sales and employee figures. Ability to search by yellow page heading, SIC code, geography, and size of business. Selected financial information on publicly owned companies in the United States.
Information is arranged by city, zip code, and yellow page headings.
Denver Business Journal. Top 25 Lists Lists the top 25 Denver companies for over seventy business categories. C6 Denver Metro Business Directory From Contacts Influential, a directory of businesses in the Denver metro area. Can be used alphabetically, by zip code, or SIC code. Ready Reference T12 C6 Directory of Colorado Manufacturers Includes over 4500 manufacturing establishments in Colorado.