World Market Share Reporter provides the percentage of sales (by value or volume) that a brand or company has for a specific product or product category. Reports can range from broad industries to specific products, so be aware of what segments or categories are included.
Business Source Complete - Company/Industry Information
Business Source Complete is a comprehensive database of business information. Find company and industry news, academic journals, trade publications, country reports, and much more.
After searching use the "Source Type" filter on the left to narrow your search. SWOT Analysis, Industry Profiles, Market Research Reports, and Trade Publications all might be useful for this project.