It's best to select a public company because they are required to disclose information. Who is the parent company? Is your brand part of a subsidiary? Company profiles are also available in article and market research databases like Business Source Premier and ABI/Inform.
Be sure to distinguish the parent company of your brand or product. Company web sites offer info on mission, vision, sustainability information, product lines. For public companies only, look for links to "Company Financials" or "Investor Relations" to find Annual Reports.
Annual Reports to Shareholders:
After downloading a company's annual report, try CTRL-F to find marketing terms like "target", "customer", "consumer", "brands" etc.