The library has several databases that can help you answer questions about a company. Below is a list of each and a blurb about what you might find on it.
A Dow Jones & Reuters Company, Factiva provides global content, including Dow Jones and Reuters newswires. Factiva covers nearly 9,000 sources from 152 countries in 22 languages, including more than 120 continuously updated newswires. Factiva is an excellent source for financial data including stock quotes, company comparisons, financial snapshots, SEC filings, interactive charting, and historical market information.
If you'd like to know more, check out the Using MarketLine Advantage research guide and particularly it's Company Profiles and Company Prospector pages.