We built the platform we wished existed when we were running growth.
Masit started with a simple frustration: the best marketing teams were drowning in dashboards that showed what happened but never explained why — and the tools that promised intelligence cost a fortune and delivered nothing actionable.
We built something different. A platform where attribution is honest, creative testing is systematic, and every insight connects to something you can actually do tomorrow morning.
Built from the inside out
Daniel and Priya met at Farfetch, where Daniel was scaling paid acquisition and Priya was building the data stack. They kept running into the same wall: meaningful attribution data existed, but the tooling to surface it in real time — and connect it to creative and channel decisions — didn't.
In 2021, they raised a seed round from Seedcamp and spent 18 months building with a small group of DTC brands who were willing to give honest feedback. The result was a platform that combined proprietary attribution modelling with a managed growth team — so clients didn't have to choose between intelligence and execution.
Today, Masit works with over 240 brands across e-commerce, B2B SaaS, and consumer goods — managing more than £48M in annual ad spend and operating as an embedded growth layer for companies that want to scale without building a 20-person internal team.
How we work
Our principles
Radical clarity
We say exactly what we think — about your data, your strategy, your results. No spin, no vanity metrics, no comfort reports.
Operator mentality
We think like founders, not consultants. Every recommendation is one we'd stake our own capital on.
Systems over heroics
Great marketing isn't about a single winning ad. It's about the systems that produce winning ads, month after month.
Earned trust
We don't sign long retainers on the first call. We earn the right to a deeper relationship by delivering results first.
The people
Meet the team
Daniel Osei
Co-founder & CEO
Former growth lead at Farfetch and two DTC exits. Obsessed with attribution and unit economics.
Priya Nair
Co-founder & CTO
Built data infrastructure at Monzo and Deliveroo. Architected Masit's real-time attribution engine.
Marcus Webb
Head of Paid Media
10 years running eight-figure ad accounts across Meta, Google, and TikTok for fashion and FMCG brands.
Aisha Lindqvist
Head of Creative Strategy
Creative director turned performance marketer. Believes great creative is the last legal performance advantage.
Tom Hargreaves
Head of SEO & Content
Built organic from zero to 500K sessions/month at two B2B SaaS companies before joining Masit.
Yuki Tanaka
Head of CRO & Lifecycle
Former Conversion Rate Optimisation lead at ASOS. Reduced average CAC by 34% across our portfolio in year one.
Backed by
Seedcamp
Seed round, 2022
Episode 1
Series A lead, 2024
Various angels
ex-Farfetch, Deliveroo, Lyst
Want to work with us?
We're hiring across growth, product, and engineering — and we take on a limited number of new clients each quarter.