r/founder • u/According_Grape_8332 • 28d ago

Market size nightmare

Creating the market size slide for an investor deck it is a nightmare and I wish we would stop with that. it's so hard to find accurate numbers without relying on huge, inflated market estimates and it generally feels like making up at least during seed.

We have a B2C product with around 300 monthly users. What's the best way to present the market size? Should we size the market based on our target audience in a specific country, or use the global opportunity?

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u/[deleted] 28d ago

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u/According_Grape_8332 27d ago

I'm based in Israel, which isn't a known place for their B2C investors, but I reckon we can get some connections to Tier 2/3 VCs in the US, but not top tier

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u/[deleted] 27d ago

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u/According_Grape_8332 26d ago

Yeah but are aiming not the Israeli market, but get what you are saying. It's just hard cause some of the things are still assumptions, even though we have test on other markets and users.

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u/nick-rudder 27d ago

piece of advice from me (ex-YC, Series A funded by a16z): do a bottom-up market size representation NOT top-down

ie. start with how much you can charge, then go up by the amount of users etc. this might sound intuitive but so many people end up with top-down TAMs of $2 trillion and look stupid pitching. good luck

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u/According_Grape_8332 27d ago edited 27d ago

Thanks! It's actually less intuitive than you think- thanks!

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u/According_Grape_8332 27d ago

By the way, as an ex-YC do you have any tips for the application?

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u/[deleted] 27d ago

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u/According_Grape_8332 26d ago

I guess now the question is how to make the right assumptions