About ProbablyBig
We back the ones
who get told not yet
ProbablyBig is a UK investment platform built for the awkward gap — too early for VCs, too late for friends and family. We connect everyday investors with credible early-stage founders, with SEIS and EIS tax relief built in.
Our mission
Democratise early-stage capital allocation in the UK
In the UK, 97% of venture capital flows to London and to founders who already know someone with money. That is not a meritocracy. ProbablyBig is our answer — a regulated platform that lets any eligible investor put their conviction behind any credible founder, wherever they are.
We are not a charity. We charge a success fee when raises close, and we make no money if founders fail. That alignment matters. We only succeed when founders succeed.
Team
Built by people who have been on both sides of the table
Kieran Walsh
CEO & Co-founder
Former investment director at Seedcamp. Backed 40+ early-stage companies across the UK and EU. Obsessive about founder access.
Saoirse Maguire
CTO & Co-founder
Previously Staff Engineer at Monzo. Built core payments infrastructure serving 8M customers. First-principles builder.
Dev Anand
Head of Compliance
Former FCA supervisor with 12 years in investment firm regulation. Wrote the compliance framework that got us to FCA application stage.
Natasha Obi
Head of Founder Success
Built her own startup before it sold. Now she helps other founders structure their story, hit their targets, and keep their backers close.
Values
What we stand for
Founders first
Every product decision starts with the question: does this make it easier for a founder to raise, or an investor to back with conviction?
Radical transparency
We publish our cap table, our regulatory status, and the real risks of every campaign. No glossy projections — just honest information.
Access over exclusivity
Seed-stage UK companies should not be reserved for people who went to the right school or know the right partner. Anyone who passes our eligibility check can back any raise.
Long-term bias
Early-stage investing is a 5 to 10 year game. We design every feature — from our portfolio tracker to our founder updates — for the long view.
Ready to back a founder?
Browse live raises and invest from as little as £100.