market-sizing-analysis

The best way to calculate market size involves applying top-down, bottom-up, and value theory methodologies together. This triangulates your Total Addressable Market, Serviceable Available Market, and Serviceable Obtainable Market for a defensible business case.

Top-down market sizing starts with broad industry revenue and narrows to your segment, while bottom-up sizing calculates total users multiplied by price. Combining both validates your TAM, SAM, and SOM calculations.

To size the market for a SaaS startup targeting remote workers, apply industry-specific considerations to your TAM, SAM, and SOM calculations. This ensures your market quantification accurately reflects SaaS subscription metrics and remote worker adoption rates.

Yes, you can use value theory market sizing for a B2B services business case. This methodology quantifies market opportunity by calculating the total value your service creates or saves for customers, directly supporting strategic planning.

Validating market sizing assumptions for fundraising requires data sources supporting your top-down and bottom-up calculations. You need clear customer counts, pricing models, and industry revenue figures to substantiate your TAM, SAM, and SOM projections.