market-sizing-frameworks

Estimate TAM, SAM, and SOM by applying bottom-up, top-down, and value-theory triangulation to build structured views of total opportunity, realistic reach, and near-term capture potential. This ensures consistent definitions and exposes bad assumptions for go-to-market planning.

Validate market sizing assumptions by applying feasibility and credibility tests, including customer naming, competition checks, and SOM achievability sanity checks. These reality checks reduce overconfidence and ensure your fundraising narratives present credible revenue ranges.

Yes, bottom-up market sizing is highly effective for B2B revenue forecasting because it builds from specific customer segments and pricing. It provides realistic capture assumptions for SAM-to-SOM projection, ensuring your revenue forecasting reflects near-term capture potential.

Value theory market sizing calculates total opportunity by quantifying the value your product creates for customers. It works alongside bottom-up and top-down methods for business viability checks, cross-checking results to ensure your market opportunity is large and achievable enough to pursue.

You need market sizing formulas for competitive landscape assessment when evaluating market entry viability and positioning. They provide segmentation and filter logic for TAM-to-SAM conversion, helping you determine if the realistic reach justifies pursuing the opportunity against existing competition.

Top-down market sizing alone can lead to overconfidence during market entry viability checks because it relies on broad industry data without specific customer validation. It must be triangulated with bottom-up and value-theory methods to ensure SOM achievability and accurate competitive landscape assessment.