Market Sizing
Size your market with sourced TAM, SAM and SOM estimates and a multi-year forecast.
Run a Market Sizing
Fill in a few details and get an AI-generated analysis.
- Analysis (completed)
- Context (completed)
- Inputs
- Review
- Generate
- Result
- Export
What this tool does
Market sizing answers how big an opportunity actually is, and the discipline is in doing it three ways rather than one. TAM is the total market if you captured every dollar; SAM is the part your model can serve given the geography, segment and regulation you actually operate in; SOM is what you could realistically win against named competitors and your own capacity. Figures are researched from current sources with the year stated on every number, because a market size presented without a date is the most common way these estimates mislead a board.
How to use it
- 1Name the company and industry precisely. Market sizing is where vague inputs produce confidently wrong numbers.
- 2State the geography. A global figure is not a plan.
- 3Read the methodology section to see whether the number was built top-down or bottom-up, and judge it accordingly.
- 4Check the sources and confidence level before the figure goes in a deck. Where a number could not be verified it is marked rather than filled in.
A worked example
What a real run looks like
Input — a mid-sized operator, not a generic prompt
Weather-routing software for maritime freight, entering the UK and EU market.
What comes back
Current market size and CAGR with the year and currency stated, TAM/SAM/SOM each with one line of reasoning, a three-to-five year forecast, segmentation by region and customer type, growth drivers and trends, key risks, the competitive landscape, the derivation method, and the named sources with a confidence level.
Frequently asked questions
What is TAM, SAM and SOM?
TAM is the total addressable market, SAM the serviceable addressable market your model can actually serve, and SOM the serviceable obtainable market you could realistically win.
Is this market sizing tool free?
Yes. The ConsultantAI market sizing tool is free and requires no sign-up.
Need this on your own engagement?
The free tool covers the framework. A full ConsultantAI project turns it into a cited, board-ready deliverable built from your documents — market sizing, a financial model, or a complete deck, with every figure sourced.