American Association of Advertising Agencies

This is a great website to get information on advertising agencies that would work with mobile billboard advertising companies.  Just go to the website and click on the “agency search” or just click here

Here is a little info about the company; Founded in 1917, the American Association of Advertising Agencies (AAAA) is the national trade association representing the advertising agency business in the United States.

Remember: As much as there are good advertising agencies out there, some can be a nightmare to work with (more than not), make sure you know how to work with these agencies and know how to get the most from it (explained in the guide).  My success in the mobile billboard business is not soley from advertising agencies but they have helped me in the past.