Corey Weiner

Corey Weiner is a marketing technology executive known for building the integrated technology and data infrastructure that powers Stagwell Marketing Cloud, the proprietary tech arm of Stagwell Inc. As Managing Partner, he sits at the intersection of agency operations and enterprise software, architecting platforms that allow Stagwell's portfolio of agencies to operate with shared data assets, unified identity capabilities, and more sophisticated programmatic and automation tooling than traditional holding company models typically support. Weiner's career has been defined by a focus on martech architecture and data integration at scale — translating complex technology ecosystems into practical, revenue-generating capabilities for agency clients. At Stagwell, this has meant consolidating disparate agency tech stacks, building interoperability between platforms, and enabling a differentiated technology narrative for a holding company that has positioned proprietary tech as a core competitive advantage against legacy players like WPP, Publicis, and IPG. His work is particularly notable in the context of Stagwell's aggressive growth strategy, where technology and data assets are central to the company's pitch to both clients and acquired agencies. Weiner's role in shaping that infrastructure places him among a small group of holding company technology leaders redefining how agency groups compete in a data-driven, platform-centric advertising landscape.

Last updated May 30, 2026 by the ATDb Editorial Team