How do I filter by Industry or SIC Code Step 1 - You have to select a state you want to target. Step 2 - Once you select a state you will get a list on Industry and SIC codes. From these 2 lists you can select and target any specific industry or SIC Code. FYI, you will need to click on the '+' button after selecting any industry or SIC code to add that filter. Once you select any industry or SIC code, it will be added on your right side screen with a 'X' sign beside that. Click on this 'X' to remove that specific industry or SIC code from your filter list. Industry Selection SIC Code Selection