Assembly Biosciences Appoints Bridget Hopkins as CEO to Boost European Growth Strategy

Assembly Biosciences Elevates Leadership to Drive European Growth

Assembly Biosciences, a prominent player in the omnichannel media landscape under the Stagwell network, announces the appointment of Bridget Hopkins as the new CEO for its European operations, effective December 18, 2025. This strategic decision reflects the company's commitment to strengthening its presence in Europe amid a rapidly evolving media environment. Based in London, Hopkins has been instrumental in Assembly's regional growth since she joined as Managing Partner in September 2023, and later served as Chief Operating Officer. Her promotion signifies a pivotal moment for Assembly as it aims to enhance its offerings and deliver integrated solutions tailored to the complexities of Europe’s diverse regulatory and cultural landscape.

In her new role, Hopkins seeks to elevate Assembly's product and performance at scale. She emphasizes the importance of providing clients with future-ready solutions that address the unique challenges of the European market. Global CEO Rick Acampora has lauded Hopkins for her operational rigor, commercial insight, and client-centric approach, all of which are essential for accelerating Assembly's growth trajectory within the region. Hopkins has a strong track record in shaping client experiences for notable brands, including Estee Lauder, and her previous experience as Global Client Lead at Wavemaker equips her with the skills necessary to manage complex multi-market engagements effectively.

As Assembly continues to innovate and expand its capabilities, Hopkins’ leadership is expected to reinforce the agency’s status as a premier media partner for brands across Europe and the UK. She articulates a clear commitment to integrating talent, data, and technology to drive scalable growth for clients in an increasingly fragmented media landscape. Assembly’s core values—show up, make change, win well—are integral to its operations and resonate throughout Europe, positioning the agency to deliver greater impact and value for its clients. This leadership transition represents not only a strategic move for Assembly but a broader effort to align with the evolving needs of the marketplace.

In addition to the leadership changes, Assembly has made significant strides in recent years, including expanding into new markets and enhancing its digital commerce capabilities. The agency’s achievement of B Corp certification further underscores its dedication to balancing social and environmental responsibility with commercial success. As Hopkins steps into her new role, the agency is poised to navigate the complexities of the media landscape while solidifying its commitment to client success and sustainable growth.