TAM & SAM Excel Model

Whether you're pitching to investors, refining your go-to-market strategy, or evaluating a new vertical, understanding your market size is critical. This illustrative Excel model helps you estimate the Total Addressable Market (TAM) and Serviceable Addressable Market (SAM) for a B2B software product sold on a per-user or per-employee basis.

Built on a proven framework used across the SaaS industry, the model differentiates between SAM (based on current pricing and adoption) and TAM (based on full market maturity), giving you a clear, structured view of your market opportunity.

Perfect for: founders, early-stage teams, corporate strategy professionals, and B2B investors looking to validate market assumptions with data.