Market Share info may be found in sources listed under Industry Overviews, such as Mintel. Other ways to find market share are listed here. Note that different sources may provide different market share data due to varying definitions of the market or different methods for gathering and analyzing data.
The industry reports on the first page of this guide may also include market share information. Public companies may discuss their market share in Annual Reports or SEC Filings such as the 10-K.