Carl Holden, Zellus Marketing Top 40 Under 40
Carl Holden is a long-time north Alabama resident and UAHuntsville Graduate with a BSBA in Marketing. Since college, Carl has been co-owner with Craig Stults in their online marketing company Zellus Marketing. For the last decade, Carl focused on becoming an expert in online search optimization, best website practices, and designed/launched Rocket City App on […]

