We're the Team Growth Leaders Call When the Data Gets Messy
We've led analytics, retention, and experimentation at Intercom, Deliveroo, and The Telegraph, inside the rooms where growth targets stall, attribution breaks, and clarity becomes urgent.
Trusted by leaders in growth, product, and marketing at scale-ups and high-velocity teams.
in Strategy Value Influenced
Across growth, retention, and advertising teams
to First Insight
We move quickly—even if your setup isn't perfect
Supported
Across product, commercial, and marketing functions
We've Sat in Your Seat
We've worked in-house on the tough stuff: attribution that doesn't add up, dashboards that contradict each other, and deadlines that won't wait.
At Intercom, Deliveroo, and The Telegraph, we weren't advising from the sidelines.
We were building the systems and delivering the outcomes.
We started Lumen to be the partner we always wished we had: fast, senior, and focused on getting to signal when it matters most.
We don't send junior analysts. We don't sell dashboards.
We deliver insight you can act on.
What We're Known For
Attribution reviews
when spend isn't adding up
Channel diagnostics
to reduce waste and improve return
Retention and CRM strategies
that stick
Funnel and segmentation audits
for clarity on what's working
Strategic modelling
to support board-level decisions
Acting fast with messy data
no clean-up required
Led by Senior Operators, Not Account Managers
Marshall Postle-Floyd
Co-Founder & Data Science Director
Previously at Intercom, Deliveroo, The Telegraph, and Now TV
Marshall is a senior analytics leader who has delivered across experimentation, forecasting, loyalty, and retention.
At Intercom, he scaled experimentation systems to drive smarter product decisions.
At Deliveroo, he rebuilt the loyalty strategy and customer segmentation to improve return on spend.
At The Telegraph, he developed multi-year forecasting models that shaped pricing and retention decisions.
Ángela Castillo-Gill
Co-Founder & Product Director
Previously at Intercom and Deliveroo
Ángela is a product and data leader known for turning complex systems into high-impact outcomes. Her work spans AI, customer retention, and product analytics.
At Intercom, she built AI-powered analytics for Customer Service teams, introduced multi-agent functionality in Fin, and led the redesign of the content import experience.
At Deliveroo, she was the founding data scientist for the advertising platform and launched "Challenges," a multi-million-pound retention initiative.
What It's Like to Work With Us
Every engagement starts with one question: what decision are you stuck on?
From there, we move fast. We look for signal. We ask sharp questions. And we deliver only what helps you act.
If the data's messy, that's fine. If the deadline's tight, even better. We're not here to slow you down, we're here to help you move with confidence.
Need Growth Clarity Without the Guesswork?
Talk to a Principal. We'll help you see what's working, and what's not.