Think "Companies", "Businesses", "Competitors".
An industry is a group of enterprises primarily engaged in the same kind of economic activity regardless of their types of ownership. (IBISWorld) Industry Profiles give you the "Big Picure."
Google is your best friend; your worst enemy; and an indispensable search tool for finding industry information. Trade associations, industry groups, trade journals, professional societies, nonproft resources, government statistics, and much more.
The CRAPP Test*
Anyone can say anything on the internet. How do you distinguish trustworthy information from the unreliable. Put it to the test! Librarian Sara Blakeslee devised the memorable acroynm as a mnemonic for evaluating information resources.
The CRAAP Test
"Fake" Market Research
When you search for virtually any product or services using the words "market research", your results list will be filled with a dozen(s) reports that seem to deliver preciselly what you want. Many of these reports are produced by "research mills".
* Blakeslee, Sarah (2004) "The CRAAP Test," LOEX Quarterly: Vol. 31 : No. 3 , Article 4.