If you are looking for company reporting structures (parent company, subsidiaries, divisions...), we now have Corporate Affiliations online! It is found on the Business Reference page, under Company and Industry Databases.
I found a new application for it -- you can search for products/brands in the Advanced Search mode.
Here is the blurb, from the database:
"For over 30 years, Corporate Affiliations has been the single, most trusted guide to corporate families in the U.S. and worldwide. This remarkable resource provides instant insight into nearly 200,000 parent companies, affiliates, subsidiaries, and divisions - all the way down to the seventh level of reporting relationships.
Whether you're researching public or private firms, tracking down manufacturers of specific products or services, or even looking for individual executives, CorporateAffiliations.com's exhaustive coverage makes your tasks simple. From type of business, net worth and sales data, to contact information of key personnel and outside firms, you'll uncover a gold mine that satisfies numerous research needs.
CorporateAffiliations.com is compiled by the LexisNexis Group."
--Virginia