Market Sizing (TAM, SAM, SOM)
Estimate your market top-down and bottom-up, ready for an investor deck.
Community, verifiedby Pawel HurynChecked October 18, 2026
From Pawel Huryn's PM Skills marketplace, this skill walks through a structured market sizing. It combines top-down and bottom-up estimates and states its assumptions clearly.
Who it is for
- Founders
- Product managers
- Consultants
- MBA students
Prompts to try
Once the skill is installed, ask for the result in plain words. Claude picks the skill up on its own.
Estimate the TAM, SAM and SOM for a scheduling app for dog groomers in the USSize the market for plant-based protein bars in EuropeHelp me build the market slide for my pitch deckHow to install it
In Claude Code
claude plugin marketplace add phuryn/pm-skillsclaude plugin install pm-market-research@pm-skills
In Claude.ai
In Claude, open Customize > Browse plugins > Personal > +, choose Add marketplace from GitHub and enter phuryn/pm-skills.
Good to know
The pm-market-research plugin also includes personas, segmentation, journey maps and competitor analysis.
Unlock the install steps
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How we checked it
Confirmed SKILL.md at pm-market-research/skills/market-sizing/SKILL.md in phuryn/pm-skills via the GitHub API; skill folder last changed 2026-03-03, repo has 27,146 stars and was pushed 2026-10-16.
Source: github.com/phuryn/pm-skills/tree/main/pm-market-research/skills/market-sizing