Search for a company web site.
(free) Some large companies will have multiple web sites – one or more customer facing usually by product or product group and public companies may have an investor facing web site. Small public companies may have a page for investor relations on their web site. Public company’s required financial filings will be posted on the investor facing web site or page.
Check Social media including LinkedIn, Facebook, Twitter & YouTube
(all free) Look for news about a company and insight into customer relations. What social media a company actively uses will depend on what social media their customers use.