Adjective & Co. | 3,111 followers on LinkedIn. Adjective & Co. is an award-winning branding and full-service advertising agency headquartered in Jacksonville Beach, FL | Adjective & Co. is a boutique branding and advertising agency headquartered in Jacksonville Beach, Florida with a satellite office in New York. Adjective specializes in brand strategy, design, brand identity, advertising, social media and web design/development. The “un-agency” was recently named “Small Agency of the Year” in Southeast by Ad Age and Inc.