The C3 Group, Inc.
Native-Owned, Full Service Marketing and Advertising Agency The C3 Group is a Cherokee-owned, HUBZone-certified, full-service marketing and advertising agency based in Tulsa, Oklahoma. Founded in 2005, we specialize in branding, graphic design, digital marketing, media planning and buying, website development, public relations, strategic communications, AI prompting, and custom AI GPTs. Our multidisciplinary team delivers culturally grounded, impactful campaigns for commercial clients, tribal...
