It was great to sit down with David Joosten, Co-founder and President of GrowthLoop and co-author of First-Party Data Activation, a new book explaining “how to transform general customer data into a deep understanding of who your customers are, what resonates with them, and where to focus your data-driven marketing efforts.”
David and I discuss contemporary challenges and solutions in data-driven marketing, including the evolution of data science in marketing, the rise of cloud data warehouses, and the importance of a single source of truth. David explains the shift from traditional CDPs to “composable CDPs,” which operate on cloud data warehouses. He also highlights the role of first-party data in targeting post-cookie era, emphasizing the need for qualitative insights and AI-driven experimentation. David shares insights on overcoming data fragmentation and the practical steps for small businesses to leverage first-party data effectively.
Discussion points include:
- How David and his co-founder realized the need to build a bridge between data science and marketing teams.
- Why harmonizing data across different channels and resolving identifiers can be a technology and political challenge.
- The importance of a single source of truth for data harmonization.
- The difference between composable and traditional CDPs.
- The impact of privacy regulations on targeting and the balance between privacy and relevance.
- The challenges for small and mid-sized businesses in leveraging first-party data
- Why understanding core customer motivations helps in segmenting audiences and personalizing communications.
- Why “experimental velocity” is crucial for driving growth and improving customer relevance.
- How David’s book aims to provide a referenceable guide for marketing operations, technology, and analytics leaders.


