All US public company quarterly financial reports (and much more) are available in raw form at the SEC EDGAR site (https://www.sec.gov/edgar/searchedgar/companysearch.html). Those reports income statements, balance sheets, etc. But beware that companies will often file corrections later.
In addition, nearly all finance sites provide summaries of these reports for at least the last few quarters and last few annual reports. I like morningstar.com. But finance.yahoo.com and finance.google.com both work fine.
If you want a bunch in one shot and don't have the money for Bloomberg or CapitalIQ or whatever, I suggest quandl.com, which acts as a cut-rate data aggregator for financial data.
Thanks, quandl looks interesting. API and what not. Getting a few fundamental datasets probably costs less than subscribing to a couple of investment newsletters.