Holding company
Next 15 agencies
Next 15 presents its business as a technology and data-based growth consultancy. Its 2025 annual report describes four areas: Customer Insight, Customer Engagement, Customer Delivery and Business Transformation. These cover different jobs, from understanding a market to generating demand or changing how a business operates. Treat those labels as an explanation of the group’s approach, not proof that every agency in it provides every service.
9 agencies in the directory belong to Next 15. Each profile links to the page its membership was read on, starting from Next 15’s own site. This is the published Agency Field Guide subset, not the group’s complete corporate roster.
Before you shortlist
Start by defining what growth is being blocked by.
A business with poor market understanding needs different help from one with a clear offer and an ineffective demand program. Before comparing Next 15 agencies, write down the constraint you expect the engagement to remove. Ask the proposed team to challenge that diagnosis and explain which evidence would change its recommendation.
For a research-led assignment, establish who will apply the findings and whether implementation is included. For a demand generation assignment, agree on what qualifies as useful demand and how the sales team will report outcomes. If the scope spans consulting and campaign delivery, ask where responsibility transfers between teams. Confirm the current agency structure directly, since an annual report describes a particular reporting period rather than a permanent organization chart.
What should you ask Next 15 agencies?
- Which part of the growth problem does this agency own?
- Who turns the research or strategy into implementation, and is that work included?
Use the case study checklist to check the work behind the pitch, and the agency interview guide to compare the answers.
Agencies in Next 15
Explore the group’s agencies listed in Agency Field Guide.