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For brands and agencies · Creator, affiliate and performance marketing

Make your creator and affiliate budget accountable.

Independent strategy and hands-on delivery from Seren Roberts. Senior thinking from brief to results, with nothing to upsell.

Book a 30-min callSee pricing
No-obligation callFixed quote within a weekUK-based
Seren Roberts, founder of Partnerships21
10+ years
in creator and affiliate marketing
Speaker, Girls in Marketing
Brands and agencies I've worked with
Awin
Rakuten
Offers365
Girls in Marketing
Profect Marketing
Sound familiar?

Creator and affiliate marketing, without the guesswork

1

Your creator spend is hard to prove

Reach and likes do not answer the question leadership is really asking.

2

Channels run in silos

Affiliate, creator and paid each have their own plan, budget and partner.

3

Agency cost, junior delivery

You pay for senior thinking, then someone else does the work.

Why independent

The gap I aim to fill

The commercial thinking of a large in-house team, with the flexibility and directness of an independent consultant.

Big agencies
Platforms
Partnerships21
Incentives
Overheads and incentives that don't always match yours
Push the tools that earn them the biggest margin
Channel-agnostic advice with nothing to upsell
Delivery
Senior people pitch, junior people deliver
One tool, one channel
Senior thinking from brief to results, across every channel
Commitment
Long retainers
Locked into their platform
Flexible, hands-on support
Ways to work together

Pick the level of support you need

Bespoke prices depending on the service level. You always get a fixed quote before any work begins.

Strategy sprint

A focused audit and plan for your creator or affiliate programme, with clear, costed next steps.

Tailored 
One-off project
  • Programme and channel audit
  • Budget and publisher mix plan
  • Creator and commercial strategy
  • Handover session with your team
Book a call about this
Most requested

Ongoing support

Senior strategic support as an extension of your team, without the cost of a senior hire.

Tailored 
Monthly, flexible
  • Regular strategy sessions
  • Partner and publisher negotiations
  • Reporting reviews
  • On-call senior support
Book a call about this

Campaigns with i365

Managed creator campaigns with credentialled creators and full performance tracking.

Tailored
Campaigns from 1 month
  • Creator casting and management
  • Hybrid fee and commission model
  • Live brand dashboard
  • Organic reshare rights
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How it works

From first call to results in four steps

STEP 1

Book a 30-minute call

Tell me where you are and where you want to be. No obligation.

STEP 2

Get a clear proposal

A fixed scope and price within a week of our call.

STEP 3

We get to work

I deliver with your team, or through i365 for managed campaigns.

STEP 4

Review the numbers

Regular reporting, so you can see what is working and prove it upwards.

Services

What I can help with

All services
01

Creator Campaign Strategy, Sourcing and Execution

02

Performance Tracking and Reporting

03

Creator and Affiliate Training and Education

04

Commercial, Partnerships and Social Strategy

05

Affiliate Programme Strategy

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.

More about me
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
Follow along

Tips from your start-up sister

I share what I've learned since going self-employed, from creator marketing to running a business, on Instagram. For industry news and thinking, connect with me on LinkedIn.

Follow @partnershipsgal Connect on LinkedIn
partnershipsgal
Seren Roberts
Founder of Partnerships21 and i365
5 years as a YouTuber · Based in London
Working with i365 has been such a positive experience. The team are friendly, supportive and genuinely understand us as creators, which makes the whole process feel really easy and natural.
Megan Goodchild, The Face Boss · Makeup artist, educator and creator, managed by i365
70,000+
Audience across Instagram, TikTok and Facebook
5×
Makeup Artist of the Year, Central England and Wales
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
FAQ

Questions brands ask

Do you work with smaller brands?

Yes. I work with SMEs launching their first creator strategy through to established brands and the agencies behind them.

Do I have to use i365 to work with you?

No. Strategy work is channel-agnostic. i365 is there if you want campaigns delivered and tracked for you.

How is pricing worked out?

After our first call you get a fixed scope and price. No open-ended retainers unless you want ongoing support.

Can you work alongside my agency or network?

Yes. I often plug into existing affiliate programmes and agency teams rather than replacing them.

Where are you based?

I am UK-based and work with teams remotely and in person.

Ready to make your creator spend accountable?

Book a free 30-minute call to talk through where you are, where you want to be and whether I'm the right fit.

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