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TAM SAM SOM

What is Top-Down Market Sizing?

7 mins
Top-down market sizing is a method where founders start with a broad industry value and narrow it down to their specific segment to estimate potential business opportunity.

What is Bottom-Up Market Sizing?

6 mins
Bottom-up market sizing uses granular customer data and unit economics to build a realistic market estimate, offering a more accurate alternative to top-down speculation for startup founders.