In-Depth Profiles, Histories, and Financials
(See OneSource for in-depth company information and financials for US and international companies)
EDGAR: Repository of registration statements, periodic reports, and other forms submitted to the U.S. Security and Exchange Commission.
Directories and Brief Entires
(See "U.S. Businesses / Employers USA" for brief information)
Non-Profit and Private Companies
Nonprofit Explorer: This free resource collects the financial filings of over 600,000 tax-exempt organizations.
PrivCo: Private Company Financial Intelligence is source for business and financial data on major, non-publicly traded corporations, including family owned, private equity owned, venture backed, and international unlisted companies. This is the free version; not all reports will be available.