Market Sizing
Strategic market frameworks for growth decisions
Market sizing is not an exercise in optimism. It is a discipline in defining scope, constraints, and realistic opportunity.
This tool reflects the market sizing frameworks we apply when advising leadership teams on growth strategy, expansion planning, and investment readiness.
How to use this tool
This calculator is designed to structure thinking around market opportunity using standard TAM, SAM, and SOM frameworks.
Outputs should be used to test assumptions and strategic coherence — not to justify predetermined conclusions.
Market layers included
Total Addressable Market (TAM)
The total demand opportunity if the business served the entire relevant market.
Serviceable Available Market (SAM)
The portion of TAM targeted by the company's products, geography, and business model.
Serviceable Obtainable Market (SOM)
The realistically achievable share of SAM based on competitive and operational constraints.
Enter high-level assumptions to explore indicative market size ranges.
Interpreting market sizing outputs
Large headline market sizes are rarely actionable on their own.
Strategic decisions depend on how clearly a business can define its serviceable market and realistically capture share within operational and competitive constraints.
When professional evaluation matters
Market sizing should be evaluated alongside business model viability, cost structure, regulatory exposure, and execution capability — particularly in expansion planning or investor discussions.
Advisory context
In advisory engagements, market sizing is used to assess strategic focus, prioritise growth paths, and stress-test investment narratives.
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