market-sizing-analysis

TAM, SAM, and SOM market sizing uses bottom-up, top-down, and value-theory methodologies to estimate market opportunity. It triangulates data from multiple sources to validate assumptions and deliver investor-ready calculations for your venture.

Bottom-up market sizing builds estimates from granular unit economics, while top-down starts from broad industry totals and narrows down. Triangulating both methodologies cross-checks your TAM, SAM, and SOM calculations to ensure credible, investor-ready outputs.

To create an investor-ready market size report, document all data sources, assumptions, and calculation methods explicitly. The process outputs clear methodology notes alongside your TAM, SAM, and SOM figures to validate the business opportunity.

Yes, value-theory market sizing applies to ecommerce marketplaces alongside bottom-up and top-down methods. It estimates opportunity based on perceived value delivered to customers, triangulating with other methods to produce credible SOM calculations.

TAM calculations lack credibility when they rely on a single methodology without triangulation. Credible market sizing cross-checks bottom-up, top-down, and value-theory estimates while keeping all data sources and assumptions explicitly documented for investors.