D&B Hoover's (formerly: Hoover's Online )
Covers thousands of major U.S. and foreign companies, publicy-held and private. 
Years of Coverage:  Current    Search this in GALILEO

Mergent Online 
Covers over 30,000 U.S. and foreign publicly-held companies. Includes description of their current securities issues. 
Years of Coverage: Current   Search this in GALILEO

Refinitiv Workspace
Overviews of publicly-held U.S. and foreign companies. Heavily financial. 
Years of Coverage:  Current    Find this in GALILEO

Factiva 
Overviews of publicly-held U.S. and foreign companies. Includes recent financials. 
Years of Coverage:  Current    Search this in GALILEO