Buzzfile Basic
http://www.buzzfile.com/Home/Basic

Buzzfile Basic is the most advanced freely available company information resource in the market today. Buzzfile provides users more content and productivity tools than premium resources costing hundreds of dollars. On Buzzfile, you can access detailed information on virtually every company in the U.S., as well as map, save and share your search results. This will be added to Reference Resources Subject Tracer™. This will be added to Business Intelligence Resources Subject Tracer™. This will be added to Entrepreneurial Resources Subject Tracer™. This will be added to the tools section of Research Resources Subject Tracer™.