ri·val·ry /ˈrīvəlrē/ noun Competition for the same objective or for superiority in the same field. WHO WE ARE: We empower our clients to generate their best work and get it in front of the audience they deserve. Collectively The Rivalry Effect has over 40 years of advertising expertise both nationally and in the Des Moines market. Our focus has been in the digital, social media, radio, tv, print, promotions and public relations fields. You can feel confident in our experience as advertising professionals and what we bring to elevate your business ahead of your rivals.