O2 Ideas is a marketing firm headquartered Birmingham, Ala. The firm offers advertising, brand planning, public relations and event planning services. O2 Ideas is one of the largest multicultural marketing firms in America. The firm markets companies through television, in-store, print, direct mail, and outdoor campaigns. O2 Ideas clients include Brunos Supermarkets, Verizon (formerly GTE Wireless), Books-a-Million.com and the Alabama State University.