Gray Design Group
Architecture and PlanningMissouri, United States51-200 Employees
Gray Design Group is a mid-sized architecture, interiors, and experiential graphic design firm based in St. Louis, Missouri, with a practice that spans more than four decades. The firm pursues an integrated approach to designing spaces that encourage efficiency, productivity, and positive user experiences. By combining architectural, interior, and experiential design perspectives within a single studio, it aims to deliver cohesive environments that meet functional needs while fostering meaningful connections. In 2025, Gray Design Group partnered with Panattoni on a multi-phase industrial development spanning 180 acres, featuring eight buildings and totaling 2.8 million square feet. In 2026, the Saint Louis Business Journal recognized Gray Design Group as one of the largest interior design firms in the region.