An easy way to find competitors is by industry classification, which groups companies according to their business activity. Use these NAICS codes to search for other companies competing in the same industry.
Also consult the Library's Company Research guide: libguides.bentley.edu/companyresearch
D&B Hoovers enables users to create custom lists and reports for researching US and international companies. Use the Search and Build a List link to identify target companies using filter categories such as company size, company type, financials and more. The resulting reports contain company information such as SEC filings, market research reports, analyst reports, SWOT analyses, and industry information from First Research. Use the Desktop link to assemble and "pin" lists and reports for easy access. NOTE: Pinned items are only saved to the desktop for the length of your session; sessions are subject to timeouts. Simultaneous access is limited to 50 users.
Euromonitor Passport provides business intelligence on selected Industries, Countries & Consumers, Companies, and Geographies, and comprehensive tools for analysis across datasets. Each category includes in-depth reports, analyst comments, statistics and external sources. New reports, analyses and comments are added daily, while industry reports are updated annually. Historical and forecasted date coverage varies by country, within a broad range of 1977 to five-year projections. Users will have to fill out a short registration form the first time they access Euromonitor. Faculty & Staff members please list your department under "Course".
ReferenceUSA (now known as Data Axle) contains detailed information on U.S. businesses. ReferenceUSA records contain contact information, corporation information, company descriptions, management directories, and competitors. The custom search feature in ReferenceUSA allows users to set up a personalized search form to help identify and compare companies. Custom search options allow users to limit search results by business type, geography, business size and ownership type.
After launching ReferenceUSA, click on the link for "US Businesses" and then the tab for "Advanced Search".
Reference USA lets you download/export up to 500 company records at a time into excel. You can slice the data even further by looking at the other options available in the Advanced Search, just remember to Update Count when you add criteria before View Results.
Please remember that brand names and company names are not always the same and that not all of these companies are competitors.