6.2 Market sizing: Top-down and layers of the onion


This video introduces you to ‘Top Down’ market sizing – also known as TAM/SAM – with some tips on what to watch out for so you can build as credible a model of your market size as possible.

Market Sizing- Top Down


Here are two good summaries of top down market sizing to complement the explanation in the video:



Marketing for Hardware Startups: Determine if Your Hardware Product has a Big Enough Market Opportunity. (2016, January 11). Retrieved from http://www.berkeleysg.com/how-to-determine-market-size-tamsamtarget-market/

TAM SAM SOM – what it means and why it matters. (n.d.). Retrieved from https://www.thebusinessplanshop.com/blog/en/entry/tam_sam_som