
Episode #16
16. Market Sizing for Pitch Decks: Why TAM SAM SOM Is Costing You the Meeting – with Otto Pohl
Most investors skip your market sizing slide. Not because the number is too small, but because a $5 billion figure pulled off Statista tells them nothing about how you get your first customer. And when you claim 1% of a huge market, you quietly undercut the entire deck you just spent ten slides building. So what does a market slide that actually sells the business look like? Otto Pohl helps deep tech founders tell better company stories, with a focus on university spinouts. Former journalist, serial entrepreneur, head of communications for startups, and he has taught entrepreneurial communications at USC. In this episode he and Marina take apart the TAM SAM SOM habit and rebuild the market slide from the bottom up. You will hear why the same blood-analysis technology needs three completely different market pitches depending on whether you are talking to a medtech VC or to SoftBank, how a data center cooling startup found its one number by anchoring on PUE instead of the total market, why conquering Belgium can be a more convincing first move than claiming the world, and what changes in your market narrative between pre-seed and Series A. Plus the reason academic founders keep showing up to the beach in a tuxedo. LINKS Could use a strategic advisor on your communications and founder branding? Work with Marina at https://www.scalingnerds.com/ Marina Schmidt (host) on LinkedIn: https://www.linkedin.com/in/schmidt-marina/ Otto Pohl (guest) on LinkedIn: https://www.linkedin.com/in/ottopohl Otto Pohl's website & biweekly newsletter: https://www.ottopohl.com/ Otto's consulting, Core Communications: https://www.ottopohl.com/services CHAPTERS 00:00 - What the market sizing slide is actually for 14:27 - Bottom-up market sizing: the numbers investors believe 41:02 - Picking your wedge: why a small first market wins 49:34 - Academic vs business communication: the tuxedo at the beach 54:15 - How market sizing changes from pre-seed to Series A ABOUT THIS EPISODE A practical guide to market sizing for startup pitch decks, built for deep tech and university spinout founders. Otto Pohl and Marina Schmidt cover TAM SAM SOM and its limits, bottom-up market sizing, how the market slide connects to your go-to-market strategy, choosing a beachhead market, and how investor expectations shift from pre-seed to Series A. Scaling Nerds is a startup podcast on communications, storytelling and PR for VC-backed founders raising their next round. KEYWORDS market sizing, tam sam som, pitch deck, market slide, bottom-up market sizing, go-to-market strategy, beachhead market, investor pitch, deep tech startup, university spinout, fundraising, startup marketing, startup storytelling, founder branding, startup podcast

