This source is great for data on large public companies. Simply search by company name, ticker, SIC or NAICS code; Choose your company, then look for the "Company Financials" tab. All data is downloadable to Excel. Use the Mergent Toolbox to easily create spreadsheets and reports comparing up to 500 companies.

In a company profile, find Ratios and Quick Comps in the left menu, or click the Industry Survey tab and look for Key Stats and Ratios.

Search this source for company ratios.

Provides private market data by industry and financing history. Includes startups, VC and PE-backed companies, as well as mature private and public firms.
Access note: Log in required to access full content. Register for a free account with your colorado.edu email address. Users are limited to 10 downloads per day and 25 downloads per month. (1 download = 1 row of data on an excel file).

This source provides private company financials and revenues, private M&A deals and deal multiples, private firm valuations, venture capital fundings, private equity deals, private and family ownership breakdowns, bankruptcies, restructurings, and more.

Look here for information on private companies, venture capital firms, and more.

This source provides access to data for both private and public companies, including businesses that have closed in the past five years. The directory also includes estimated company sales, operations, number of employees, and more.