Marketing that shows up in the numbers.
Twenty years building and transforming marketing functions for Marsh McLennan, JLT, Aon and the Post Office, and in 2026 a production SaaS platform designed, built and launched solo.
The career, in one line
Twenty years · four employers · one founder chapter- 2008 – 2013Post OfficeTravel Money Online, £40M → £220M
- 2013 – 2016AonRedeveloped and relaunched the SME e-commerce platform
- 2016 – 2019JLTBuilt the function: +70% new-business leads in year one
- 2019 – 2023Marsh100+ country sites onto one platform; five M&A integrations
- 2023 – 2026Marsh McLennan60% of pipeline attributed to marketing
- 2026FounderA production SaaS platform, built and run solo with AI agents
Proof
Latest thinking
All writing →
About me
I’m Leigh. For twenty years I’ve run digital marketing inside big, complicated businesses (the Post Office, Aon, JLT and Marsh McLennan), usually at the point where things needed joining up: sites, teams, platforms and numbers.
In 2026 I built a production SaaS platform on my own, with AI agents doing the heavy lifting. It taught me more about practical AI than any course could, and it’s the operating model I bring to every marketing team now.
I’m looking for a permanent marketing leadership role close to home in Surrey or Hampshire, somewhere I can build one function properly and stay to see it compound.
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Looking for a marketing leader?
I’m looking for a permanent marketing leadership role in Surrey or Hampshire: a business with the ambition to grow, where marketing is measured on revenue.