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Stagwell Appointed Assembly CEO Amid 10% Revenue Growth

Marketing leaders should monitor how the firm’s push into integrated AI-driven agency services shifts competitive dynamics.

Updated on Sept. 30, 2026 in Advertising

Isometric editorial illustration of interlocking server rack modules, representing the integration of AI tools into digital marketing infrastructure.
Stagwell has appointed Liz Rutgersson as CEO of its Assembly agency division as the firm scales its AI-driven digital marketing infrastructure. AI Illustration. Upload story photo >

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Stagwell appointed Liz Rutgersson as global and North American CEO of Assembly following a Q2 2026 performance that saw organic revenue grow 10% year-on-year to $786 million. The firm, which employs 13,000 people globally, is increasingly positioning its services to bridge the gap between full-service and self-service agency models.

Why it matters

Stagwell is pivoting to become a leader in digital marketing transformation by integrating creative services with AI-driven products designed for client-owned tech stacks. This shift aims to capture more market share by offering proprietary tools that provide deeper operational control than traditional agency arrangements.

Stagwell reported organic revenue growth of 10% year-on-year to $786 million in Q2 2026, with 79% of total revenue originating from the U.S. Digital Transformation services grew 12.0% while Communications grew 8.8% during the first half of the year.

The players

Stagwell

A global marketing and communications holding company employing 13,000 people and focusing on digital transformation.

Liz Rutgersson

The newly appointed global and North American CEO of Assembly, a subsidiary within the Stagwell group.

The details

Stagwell is refining its business model by embedding AI-driven products directly into the tech stacks of its clients. By sitting between traditional full-service agencies and self-service SaaS models, the company aims to lock in clients with custom infrastructure. This approach is intended to scale its Media and Commerce division, which currently accounts for 24% of the firm's total revenue.

Timeline

  1. Stagwell recorded $786 million in organic revenue during Q2 2026.

  2. Digital Transformation revenue grew 12% in H1 2026.

  3. Communications revenue grew 8.8% in H1 2026.

  4. The official article publication date was September 30, 2026.

Market Landscape

Stagwell's strategy follows the broader industry trend of agencies moving beyond simple service delivery to provide embedded, proprietary technology platforms. This evolution reflects a push to retain clients by becoming a functional component of their internal digital operations.

Operators evaluating agency partners should consider whether their vendors are attempting to lock them into proprietary tech stacks or offering open-platform solutions. Monitor these integration costs, as reliance on agency-built AI products can create significant long-term vendor dependency.

The takeaway

Agencies are increasingly competing as technology providers rather than just service vendors, which changes the risk profile of your marketing stack. Assess whether your current agency contracts contain clauses that allow for the migration of your own data if you choose to switch vendors.

Further reading

For more on industry shifts in agency service models, see our coverage of Advertising.

Source note: This article includes information reported by The Media Leader.

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Do you believe the adoption of AI tools will improve job opportunities in your field?