How Seraphim Raised £137M by Marketing Space Investing to Retail Investors | Leah Martin

In this episode of The Growth Engine, we sit down with Leah Martin, Head of Marketing at Seraphim Space Investment Trust, to hear one of the most compelling marketing stories in the investment trust sector right now: How do you build a retail investor audience from scratch for the most niche investment trust in the market — and turn it into a £137 million raise? Leah joined Seraphim five years ago as a team of one, shortly after its IPO. Since then she's built the brand, the content engine, the social strategy, and the retail infrastructure that underpinned the biggest retail fundraise in the UK in over five years. She's candid about what worked, what didn't, and why she backed platforms that most of her peers in the sector were still dismissing. We discuss: Why she started a podcast before writing a single blog post — and why it was the right call How native satellite imagery became the foundation of a visual content strategy that actually stops the scroll The Instagram and Meta ads approach that drove retail platforms up the shareholder register Why she built the social infrastructure years before the fundraise — and how it paid off How over 7,000 retail investors came on board at £1 per share, with the trust now trading at a significant premium The challenge of marketing a space tech fund when everyone assumes you're sending people to the moon Why she's now shifting focus to LLMs, Reddit and AI search over traditional financial media Her take on finfluencers and why authenticity matters more than reach Leah also shares her advice for solo marketers stepping into a financial services brand with no structure, a long brief, and limited budget — and why trying things and binning what doesn't work is a strategy in itself. If you work in investment trust marketing, retail investor engagement or are thinking about how to build a brand in a niche financial sector, this episode is a genuine masterclass Visit hub at www.hubagency.co.uk ‪@seraphimspace232‬