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#1044The Growth-Engine Marketing Podcast72.0 / 100Get badge
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The Growth-Engine Marketing Podcast

Hosted by hub.

David Hunstone, the Co-founder and CEO of Hub, hosts The Growth Engine, a podcast for senior marketeers and leaders within the media and communications industry.

38 episodes · publishes fortnightly · latest 2026-06-25 · ~44 min/episode

Rank

#1044

Substance

72.0

/ 100

Breakdown

Scored 2026-07
Updated monthly

Marketing rank

#137 of 991

Best B2B Marketing Podcasts →

Across the index

#1044 of 6182

Substance

Top 17%

outscores 83% of the index

Why it scores where it does

The Growth-Engine Marketing Podcast ranks #1044 on The B2B Podcast Index with a substance score of 72.0 out of 100, scored across 1 recent episode. It scores highest on guest caliber and specificity & evidence. Leah Martin is a genuine practitioner who built a measurable retail-investor marketing function from scratch and can point to specific outcomes (£45M retail raise, shareholder-register shifts, organic follower growth) as evidence of her work. She is not a C-suite executive or a founder, but she has credibly done the thing at real scale in a niche context most B2B marketers haven't touched.

The five-dimension breakdown

Averaged across 1 recently scored episode, with cited evidence.

Insight Density

14.0 / 20

A handful of genuinely operational insights surface - building audience infrastructure before a fundraise, using shareholder-register movement as a proxy attribution signal, and re-prioritising LLM-friendly channels over paywalled press - but they are spread thin across 32 minutes of meandering, filler-heavy conversation. Too much of the runtime is platitude or recapping the obvious.

“we already had had that there and we already had, you know, it was easy for, for me to kind of tweak an ad, um, to, to link back to the fundraise, for example, that we already had the audience kind of ready”

“I could see kind of these platforms that I was driving people to, the retail platforms, moving up the shareholder list. So I could then attribute that to my work”

Originality

13.0 / 20

The observation that paywalled FT/Bloomberg coverage is a poor LLM-training source and that Reddit AMAs and trade publications now outrank prestige media for AI search visibility is a genuinely non-standard take. Everything else - use visual content on Instagram, post daily, try things and kill what doesn't work - is standard marketing orthodoxy.

“they use the trades, they use websites, they use Reddit chats, they use Reddit forums. So things are really pivoting in that direction”

“focus on doing an AMA on Reddit, focus on getting in a trade magazine, that kind of thing because that's where, that is the future of search”

Guest Caliber

17.0 / 20

Leah Martin is a genuine practitioner who built a measurable retail-investor marketing function from scratch and can point to specific outcomes (£45M retail raise, shareholder-register shifts, organic follower growth) as evidence of her work. She is not a C-suite executive or a founder, but she has credibly done the thing at real scale in a niche context most B2B marketers haven't touched.

“we raised 45 million from, from retail, which is incredible. Um, it's the biggest retail raise in the UK in the last five years”

“I could then attribute that to my work, what I did”

Specificity & Evidence

16.0 / 20

The episode delivers a solid cluster of named figures - £137M raise, £45M retail tranche, 7,000+ retail investors, £1K/month Meta spend, share price from £1 to £2.50, AJ Bell reaching top-10 on the register - alongside named platforms and channels. It loses marks because many of the numbers are presented without context or methodology, and attribution claims remain loose.

“over 7,000 retail investors got, um, on board”

“we're doing about a grand a month”

Conversational Craft

12.0 / 20

The host covers the logical arc of channels, strategy, and outcomes and occasionally surfaces useful follow-ups (e.g. pressing on TikTok vs Instagram conversion rates), but the default mode is warm affirmation rather than interrogation. No claim is challenged, several questions are leading or rhetorical, and the guest's self-congratulatory assertions about attribution go completely unpushed.

“And you'll see they're receptive to that.”

“That's astonishing.”

Standout episodes

  • The Growth Engine - Series 2 Episode 7: How Seraphim Raised £137M by Marketing Space Investing to Retail Investors | Leah Martin

    2026-06-25

    72

Rank over time

First period on the Index - history builds from here.

Episodes

1 scored on substance · 38 tracked in total.

  • The Growth Engine - Series 2 Episode 7: How Seraphim Raised £137M by Marketing Space Investing to Retail Investors | Leah Martin

    2026-06-25 · 32 min

    72 / 100

Frequently asked

What is The Growth-Engine Marketing Podcast's substance score?
The Growth-Engine Marketing Podcast scores 72.0 out of 100 for substance and ranks #1044 on The B2B Podcast Index. That puts it ahead of 83% of the B2B podcasts we rank and #137 of 991 in Marketing. The score reflects insight density, originality, guest caliber, specificity and conversational craft across recent episodes - not downloads.
Is The Growth-Engine Marketing Podcast worth listening to?
Yes - The Growth-Engine Marketing Podcast outscores 83% of the B2B marketing podcasts and shows we rank on substance, so a marketing operator is likely to come away with something useful.
Who hosts The Growth-Engine Marketing Podcast?
The Growth-Engine Marketing Podcast is hosted by hub..
How often does The Growth-Engine Marketing Podcast publish?
The Growth-Engine Marketing Podcast publishes fortnightly, has 38 episodes, released its most recent episode on 2026-06-25.
Which The Growth-Engine Marketing Podcast episode should I start with?
Our highest-scoring recent episode is "The Growth Engine - Series 2 Episode 7: How Seraphim Raised £137M by Marketing Space Investing to Retail Investors | Leah Martin" (72/100) - a good place to start.

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Frequently discusses

Companies, products and tools that come up most across this show's episodes.

SeraphimArtemisTeslaLinkedInInstagramTikTokTrading 212AJ BellHargreaves LansdownChatGPT

Guests who've appeared

Leah Martin

Topics this show covers

The themes that come up most across this show's episodes.

Meta adspodcast distributionInstagram marketingSeraphim CapitalInvestment trustsSatellite technologyRetail investorsLinkedIn organic growthPodcast content strategyAJ BellTrading 212satellite imageryinvestment trustspace technologynational security

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