Partnerships21 logo Partnerships21
Seren Roberts
Founder, Partnerships21 · Commercial Director, i365

Hi, I'm Seren

I started in creator marketing in 2015, on the other side of the camera. Five years as a YouTube creator taught me what makes an audience trust a recommendation, and what makes a brand deal feel forced.

Since then I've worked on the agency side and the platform side, and watched creator marketing grow from funny YouTube challenges into an established marketing channel. Seeing it from every side, I kept wishing brands had an option that put their results first.

So I built it. Partnerships21 brings a creator's instinct, a performance marketer's rigour and the commercial thinking to connect the two.

Book a 30-min callSee services
The name

Why 21?

2Partnership, alignment, trust
+
1Leadership, independence and vision
=
3Communication, creativity, influence

In numerology, 21 represents the balance between leadership and collaboration.

The energy of 1 symbolises independence, ambition and new beginnings, while 2 represents partnership, trust and alignment. Together, they create 3, the number of communication, creativity and influence.

Twenty One reflects the belief behind Partnerships21: the strongest growth comes from clear strategy, strong partnerships and meaningful connection.

First Class
Retailing, Marketing and Management, Loughborough University
Speaker
Girls in Marketing and Awin Influencer Unveiled
Since 2015
In creator marketing, from YouTube creator to consultant
600k+
Views as a YouTube creator
How I work

What you can count on

Channel-agnostic

I recommend what works for your brand, not what earns the biggest margin.

Senior throughout

The person on the first call is the person doing the work.

Measured, not guessed

Every recommendation comes back to tracking and attribution.

On stage

Talking creator ROI with the industry

From Awin's Influencer Unveiled panel to the Girls in Marketing community, I share what I've learned about proving creator value.

Seren speaking at Awin Influencer UnveiledThe Awin Influencer Unveiled panel
Speaker, Girls in Marketing
Justify the Spend: How to Prove Creator Value Beyond Social Metrics
Out in the industry

Where the conversations happen

You'll find me at the events where creator, affiliate and performance marketing meet, talking to brands, agencies and creators about what's working and what isn't.

Seren speaking on a panel at Awin Influencer Unveiled
Panellist, Awin Influencer Unveiled
Seren at the Performance Marketing Awards
Performance Marketing Awards
Seren at the Digital Marketing World Forum
Digital Marketing World Forum
Seren networking at an industry event
Networking
iPX 2026, London
Speaker, Girls in Marketing
Justify the Spend: How to Prove Creator Value Beyond Social Metrics

Let's talk about what you're building

Book a free 30-minute call and tell me where you are and where you want to be.

Book a 30-min call or email seren.roberts@partnerships21.co.uk