For company research, you will want to use databases such as Business Source Ultimate, Company Profiles or Mergent Intellect.
For product or brand research you can use Business Source Ultimate, Academic Search Premier or MasterFile Premier. In addition, you can also use Google Scholar, which is accessible from the library list of databases.
Below are some screen captures on how to create a search using the Company Profiles, Business Source Ultimate and Mergent Intellect Database to locate company information and also specific product information. I have used Apple and the iPad as examples. You can simply replace my terms with your topic to get relevant results.