Built on relationships. Driven by results.
Partnerships21 is an independent consultancy, led by Seren Roberts, helping brands build and scale performance-led programmes across influencer, affiliate, and digital advertising.
An introduction.
I've spent the last several years working at the intersection of creator marketing and performance. Most recently at one of the world's leading influencer marketing platforms, where I partnered with brands to build and scale their influencer marketing through the affiliate channel and full-funnel campaigns.
As Partnerships21, I focus on supporting brands with developing performance-led growth models across influencer, affiliate, and digital advertising. I take a holistic approach to performance marketing, integrating channels where they accelerate growth and optimising them individually where they generate stronger returns. My work sits at a strategic level, helping marketing and commercial teams make confident, evidence-based decisions about where their budget goes and why.
Outside of my professional experience, I hold a First-Class degree in Marketing and Management from Loughborough University and spent five years as a YouTube content creator before moving behind the camera. My first-hand experience on both sides of the creator relationship, as a practitioner and as a brand strategist, gives me unique knowledge and experience in the space.
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How can I support you and your teams?
Channel Strategy and Budget Allocation
Most brands are either
over-investing in channels that don't convert or under-investing in ones that do. I audit your current marketing mix and build a clear, evidence-based model for where influencer, affiliate, and paid media should sit and how they should be funded relative to your growth stage and revenue targets.
Programme Design & Commercial Ecosystem
Getting the channel mix right is only half the job. I help brands select the right networks, platforms, and creator partnerships, and structure commercial relationships that support long-term growth rather than one-off campaign peaks.
Marketing and Social Media Consultancy
For earlier-stage businesses that need senior marketing expertise without the cost of a full-time hire, I work on a retained or project basis. Through embedding myself as a strategic resource across specific work streams, I can develop a strategy for area of your marketing mix.
Why Partnerships21?
Agencies have overheads and incentives that don't always align with yours and platforms push tools that might not be the right fit.
Partnerships21 exists to give brands access to the kind of commercial thinking that usually sits inside large in-house teams or expensive retainers, applied with the flexibility and directness of an independent consultant.
Every engagement starts with understanding your business model, not your brief.