But it's free. This Newspaper's archives are available for a fee on line. Very good if you're researching a local company in either Kansas or Missouri. Kansas City Business Journal Has a searchable archive. Top 50 Long profiles of the top 50 in St Louis.
Manufacturing companies are quite strong here.
Kansas City Star 50 Top 50 companies in the region ranked by the number of employees. This site also includes direct search links to the library mentioned above. From the state development office. Just the company name and range of the number of employees. Enter a company name or a portion of the name.