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market-sizing-analysis

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Calculate TAM/SAM/SOM for market opportunities using top-down, bottom-up, and value theory methodologies. Use this skill when sizing markets, estimating addressable revenue, validating market opportunity for a new venture, or building investor-ready market analysis for a startup pitch or business plan.

marketing/market-sizing-analysis/SKILL.md

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# Market Sizing Analysis

Comprehensive market sizing methodologies for calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for startup opportunities.

## Overview

Market sizing provides the foundation for startup strategy, fundraising, and business planning. Calculate market opportunity using three complementary methodologies: top-down (industry reports), bottom-up (customer segment calculations), and value theory (willingness to pay).

Treat percentages, thresholds, named sources, and numerical results in the supporting references and worked example as illustrations, not verified defaults. For a real analysis, cite current sources with date, geography, units, and assumptions; do not invent inaccessible data.

For current market evidence, read [the SandBase API map](references/sandbase-api-map.md). Resolve the listed capability with `sandbase_discover`, inspect its returned `name` with `sandbase_inspect`, then follow `execute_as` to call `sandbase_run(name: "<returned name>", arguments: { ... })` using only the current schema. For async results, poll `sandbase_run_get` with the returned `run_id` within the task budget; report pending or failed runs without automatically resubmitting them.

## Core Concepts
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