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The founder3x CRO

The practice is built and run by Mark Walker.

I've spent the last 20 years in the trenches of B2B go-to-market: building teams, hitting targets, and figuring out what actually works when you're trying to grow a company. I've been Head of Growth at Eventbrite, the first Marketing Director at Attest (where I later became CRO), and CRO at Pion (Student Beans). Along the way I've built and led teams across sales, marketing and customer success, always with one foot in strategy and one in execution.

3x
CRO at venture-backed scaleups
£55m+
Pipeline generated
20+
Years in B2B go-to-market
1x
Founder, VC-backed AI company
Why the studio exists

The same problems, over and over.

AI GTM Studio exists because we kept seeing the same pattern: founders and GTM leaders drowning in manual work, struggling to scale what works, and watching opportunities slip through the cracks. AI can fix a lot of that, if you know how to implement it properly. Most people in this market can do the strategy or the build. The studio does both, which is the only way the plan survives contact with the stack.

The journey

Twenty years of building the engine.

2024 to present

Founder

AI GTM Studio

Building AI-native revenue systems and ABM programmes for Series A to C B2B scaleups. Strategy, engineering and campaigns from one practice.

2021 to 2024

Chief Revenue Officer

Pion (Student Beans)

Led all commercial functions: sales, marketing, partnerships and customer success. Scaled the GTM engine during a critical growth phase, built repeatable playbooks, and drove pipeline generation across multiple markets.

2018 to 2021

CRO, previously Marketing Director

Attest

Joined as the first marketing hire, built the marketing function from scratch, then expanded to own the full commercial org. Took the company from early traction to Series A and beyond.

2015 to 2018

Head of Growth

Eventbrite

Led growth marketing for UK and Europe. Built and scaled acquisition channels, experimented relentlessly, and learned what it takes to drive growth at a company preparing for IPO.

Earlier

Marketing and growth roles

Agencies and startups

Cut my teeth in digital marketing, demand gen and growth, learning the fundamentals that still underpin everything the studio does today.

How we work

Three principles, no exceptions.

01

Strategy without execution is a deck

We've sat through enough consultant presentations that went nowhere. Every engagement ends with a working system, not a PowerPoint explaining what you should do next.

02

AI is a tool, not magic

AI can automate the repetitive work and surface insights you'd never find manually. But it needs to be implemented thoughtfully, with clear inputs and measurable outcomes.

03

Fast, opinionated, accountable

We have a bias for action. We'll tell you what we think will work, build it quickly, and own the outcome. No hedge-everything consulting speak.

Want to work together?

Book a free 30-minute call. We'll diagnose your biggest GTM bottleneck and tell you exactly what we'd build, whether you hire us or not.

hello@aigtmstudio.com