Cheil Appoints Sonia Grunbaum as Head of Business Development to Fuel Growth
Cheil has named Sonia Grunbaum as head of business development to supercharge growth and expand the client roster. Known as one of the fastest-growing agencies in the U.S., this hire signals Cheil’s ambition to accelerate growth even further.
In just five years, Cheil Dallas has grown to nearly 250 employees, delivering standout work for clients like Samsung Mobile. The agency specialises in connected experiences that seamlessly integrate online, offline, and virtual worlds. From 360° integrated campaigns and live events to e-sports, AR, VR, AI, gaming, and influencer partnerships—Cheil is redefining what it means to be a full-service agency.
Sonia, a 20+ year industry veteran, made her mark at Zimmerman Advertising, where she played an important role in securing accounts such as McDonald’s, Office Depot, Kay Jewelers, and Six Flags. Her ability to understand client needs and translate them into winning strategies will be instrumental in Cheil’s continued expansion.
“Sonia’s experience in managing multi-million-dollar pitches and her talent for building strong client partnerships make her a valuable addition to our team,” said Neo Chung, CEO of Cheil Dallas. “We’re driven by a passion to propel our clients to the top, shaping their future through the power of connected experiences. Sonia will be a key force in bringing that passion to new clients and expanding our reach.”
“Cheil has the talent, creativity, and resources to make a significant impact in the industry, and I’m thrilled to join at such an exciting time,” said Sonia. “My focus will be on showcasing the agency’s unique capabilities and ensuring that we continue to deliver innovative, data-driven solutions that drive success for our clients.”
“With top talent and cutting-edge capabilities, we’re prepared to innovate and elevate our presence across the market,” added Robin Shelby, Cheil’s COO. “Sonia’s addition marks a new chapter in Cheil’s growth, and we’re thrilled to see what we can achieve together."
