Turn your data into answers you can act on
Marketing effectiveness, data infrastructure and custom projects.
The expertise of a big agency team, the transparency and flexibility of a startup
Different problems. The same need for clarity.
Your channels all claim the credit. You can't tell which one earned it.
Measure your real marketing ROI per channel; know where to spend more and where to stop.
MMM, incrementality testing and attribution.
You have data, but it isn’t ready to guide growth.
Build data infrastructure and reporting which scale.
Automated ingestion, real-time dashboards, AI enablement and more.
Your project needs a custom approach.
We shape the data, measurement and delivery around how your business works.
Custom apps, machine learning, AI and more.
Trusted across industries, from fintech to food and drink
HOW WE WORK
Clarity is built together.
We work to your timelines, with your tech stack and to your priorities.
Find out how we tailor our services to you.
Learn how we've helped businesses like yours.
Fussy
Making rapid growth decisions with clarity, not guesswork.
Booksy - Marketing Effectiveness
A practical measurement approach for modern beauty growth.
Amazon - Custom Influencer Tracker
A resilient measurement model built for sustained momentum.
Why choose Day1Data?
Senior thinking, in the room.
A hands-on team of specialists works alongside yours—bringing deep experience without adding layers, handovers or distance.
Industry leaders from Meta, FarFetch, Monzo and the University of Cambridge.
Jake Barnett
Founder & CEO | Tesco, Farfetch
Tom Trainor-Gilham
Snr Marketing Scientist | Kantar, Mullen Lowe
Misha Freidin
Lead Analytics Engineer | Omnicom
Michael Siena
Data Scientist | Cambridge PhD
Britt Dewing
Founder's Associate | Cambridge Graduate
John Napoleon-Kuofie
Advisor | Monzo, Dentsu, Farfetch
Angela Lu
Data Analyst | Selfridges, Threads Styling
No black boxes.
Methods your team can understand, use and trust.
Built to stick.
We leave behind systems, capability and clarity that continue to compound long after launch.
Discover the Day1Data difference.
Book a call
WHY CHOOSE DAY1DATA
The benefits of a lean agency like Day1Data vs …
01
Off-the-shelf SaaS products
SaaS products require a big time investment from your team, and still may lack the flexibility required. Our solutions are custom-built, fully transparent, and up and running with barely any lift from you.
02
Larger agencies
Larger agencies hand you a black-box model and a junior account team. We show our working at every step, led by senior analysts, without the agency price tag.
03
In-house team or contractors
Hiring in-house takes months and ties you to one person's bandwidth. Get a senior team scoped to the project, with none of the recruitment cycle or long-term overhead.
