In a 2013 study, The San Diego Radio Broadcasters Association listed the following categories as the top radio advertisers.
Category % Total Market Revenue
1. Auto Dealers 15.8
2. Financial Services 9.0
3. Communications 6.3
4. Restaurants 5.0
5. Grocery/Convenience Liquor Stores 4.7
6. Insurance 4.6
7. Television/Cable Providers 4.4
8. Healthcare 4.4
9. Education 4.1
10. Casino/Lottery 4.0
