Market Sizing: TAM

Phase One of Business Strategy: The Idea

About This Lesson

The Total Addressable Market (TAM) defines the full potential demand for your product or service. In this video, explore the StartStak methodology for calculating TAM using top-down, bottom-up, and value theory approaches. Learn how to combine these methods to estimate market opportunity, refine SAM (Serviceable Available Market) and SOM (Serviceable Obtainable Market), and align your strategy with realistic growth goals.

Unit 1

Industry Problem Statement

Unit 2

External Assessment

Unit 3

Target Clients & Market

Unit 4

Business Design

Unit 5

Competitive Market Scan

Unit 6

Conclusion

Team StartStak

The StartStak team is a dynamic blend of dreamers, strategists, creators, and builders, united by a shared passion for shaping a more equitable and innovative world. Collectively they bring a rare balance of vision and precision. Each member contributes unique strengths—strategy, creativity, structure, and clarity—woven into a collective force that thrives on possibility. Together, they embody StartStak’s mission: to transform bold ideas into meaningful impact.