Your can filter by industry in any of these databases.

D&B Hoovers: Select Industries and search by industry name or code.

​Data Axle Reference Solutions: In Advanced Search under Business Type, check Major Industry Group and choose industry of choice.​

IBISWorld: Industry Reports will list major players in a particular industry.

S&P NetAdvantage or Capital IQ (see access details):

• Select Companies > Search Profiles > Industries.
• Type an industry name into the search box and select the industry of interest.
• Select Industry Profile > Constituents.

Bloomberg (see access details):

• Type EQS and hit <GO>.
• Select Industry as your filter.