Mergent Online This link opens in a new windowFind M&A under History. Mergent provides 30+ years of M&A deals. It also provides information on over 22,000 US and foreign public companies and a database of private companies. Included are up to 25 years of financial data, 10 years of full-image annual reports, SEC filings, corporate history, subsidiaries, key employees, properties, M&A, and long term debt.