Observed Signal · Oct 13, 2026 · Hiring · Source: Horizont · Impact: 1/5 · Sentiment: Positive
Unbound Media Appoints Christina Spiesberger as Managing Partner
Unbound Media, an owner-managed media agency, has strengthened its leadership team by creating the new position of Managing Partner Client & Growth. Christina Spiesberger, who previously worked at WPP, has been appointed to this role. She joined Unbound Media nearly two months ago and has been responsible for client growth and development since then. The move is part of Unbound Media's strategy to expand its client portfolio and enhance its market position. Spiesberger brings extensive network experience from her time at WPP, which is expected to drive the agency's growth initiatives.
The news is a personnel change at a mid-sized media agency, which is relevant but not industry-shifting.
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Key Takeaways & Evidence Grounding
- Unbound Media has created the new position of Managing Partner Client & Growth.
- Christina Spiesberger has been appointed to this new role.
- Spiesberger joined Unbound Media nearly two months ago from WPP.
- She is responsible for client growth and development at Unbound Media.
Connected Companies & Entities
1 Entity mapped“Unbound Media is strengthening its leadership team by creating the position of Managing Partner Client & Growth.”
Ontology Mapping & Concepts
Related Market Signals & Shifts
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PrimeUp hires Friderike Tabea Schwanecke as Head of Media
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Castenow hires Andrea Schröder to build media division
Düsseldorf-based advertising agency Castenow has announced the creation of an integrated media offering and hired Andrea Schröder from Düsseldorf media agency Unbound Media to lead it. Schröder joins Castenow as Executive Media & Communications Director and will be responsible for building the discipline “Integrated communication solutions with and through media,” anchored in Düsseldorf and Munich. She brings more than 25 years of media, strategy and leadership experience and was previously Managing Partner and deputy managing director at Unbound Media (formerly Crossmedia until 2025). In her new role she will join Castenow’s board and represent the offering to clients and at industry events. Castenow’s clients include Aida, Bundeswehr, Motel One, Coca‑Cola Germany and McDonald’s Germany.
Unbound Media launches Media Sovereignty Index with Düsseldorf University
German agency Unbound Media, in collaboration with the Düsseldorf University of Applied Sciences, has introduced the Media Sovereignty Index (MSI). This self-assessment tool helps advertisers evaluate how independently they control their media and data setups. It uses a two-stage questionnaire: a quick check with 12 questions and a full assessment with 18 additional questions, covering six dimensions: resilience and agency, data control and transparency, neutrality of consulting and planning, identity sovereignty, cost and buying transparency, and performance measurement. The index aims to raise awareness of structural dependencies and transparency gaps in the AdTech landscape, where platforms and identity infrastructure are increasingly concentrated. The tool is available free of charge at sovereignty.unbound-media.de.
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