The North American Industry Classification System (NAICS) is the standard used to classify business by codes. The U.S. Census Bureau uses the codes to organize economic data. You can use the NAICS codes as search terms to research industries.
You can search some of the library databases using NAICS Codes and you can also use the codes for google searches. For example, a google search of "NAICS 333242" returns government data on semiconductor machinery manufacturing.
Use the top search box at https://www.census.gov/naics/ to find the NAICS code for the industry that you are researching.