TAM SAM SOM Calculator
You give: How many companies could buy and your average contract value.
You get: TAM, SAM and SOM worked out bottom up, the assumptions behind them and an investor ready summary.
For founders, CMOs and demand gen leads
Define your ideal customer from your best deals.
The decision it helps with: which customers to go after, how big the market is, and which accounts come first.
Give it your best customers, deals and market numbers, and get back an ideal customer profile, a scoring model, a buying group map, your market size, account priorities and the gaps to close.
Where it works: in a web browser with no sign in, in Claude as a connector (including Claude Code and Cowork), in ChatGPT, in Gemini through the Helix GTM Suite skills package, and in Cursor, VS Code and Windsurf as an MCP server.
9ideal customer profile tools
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What is ICP Intelligence? ICP Intelligence is a free web app and AI connector with nine ideal customer profile tools for founders and demand generation heads. It is built by Shashwat Ghosh (Helix GTM Consulting), an AI native fractional CMO who builds his own GTM tools. Give it your best customers, deals and market numbers, and it returns an ICP, your TAM, SAM and SOM, and account priorities. To use it in a supported MCP client, add https://icp-intelligence.gtmhelix.com/mcp; you do not need to sign in.
What you get
Your market size and the people who decide, in one picture
Two answers ICP Intelligence gives back, drawn from its own example answers.
TAM, SAM and SOM, counted bottom up
TAM SAM SOM Calculator: 9,000 companies that could buy, $24,000 average contract value
- TAM $216.0M9,000 companies x $24,000
- SAM $64.8Mat a 30% ICP match (example rate)
- SOM $1.9Mat a 3% year 1 share (example rate)
Who decides in the buying group
Buyer Group Analyzer: spend management software, $24,000 ACV, champion Finance Controller
- ChampionFinance Controller
- Economic buyerChief Financial Officer
- Technical evaluatorHead of IT
- Day to day userHead of Accounts Payable
- Possible blockerInternal Audit Lead
Funnel not to scale. The rates marked example are placeholders: replace them with your own. Every role is a hypothesis until a named person confirms it. Open the TAM SAM SOM Calculator or the Buyer Group Analyzer to run it on your numbers. When your founder, CEO, CMO, CRO and demand generation head hold different assumptions on reachable accounts or win share, run the B2B Market Sizing Lab to compare all five views against your annual revenue target.
[01] Start here
Start with one of these 3 tools
Each one opens with a fictional example, not customer evidence. Replace it with your own facts before you press Run.
ICP Scoring Model
You give: The criteria that matter and how important each one is.
You get: A scoring matrix with example weights, qualification tiers, a scorecard template and CRM setup steps.
Buyer Group Analyzer
You give: What you sell, your deal size and your typical champion.
You get: A buying group map from champion to blocker, an influence map, a multithreading checklist and questions for each role.
[02] Tools by the decision on your desk
What are the 9 ICP Intelligence tools?
Who are our best customers?
- ICP Deep DiveYou give Your best customers, as a list or in your own wordsYou get The patterns they share, such as company size, industry and stage, with recommendations
- ICP Interview SynthesizerYou give Notes from your customer interviewsYou get Top pain points, buying triggers and value realized, key quotes, refinements to your profile and a template for the next round
- ICP Scoring ModelYou give The criteria that matter and how important each one isYou get A scoring matrix with example weights, qualification tiers, a scorecard template and CRM setup steps
How big is the market?
Which accounts come first, and who should we reach in them?
- Account PrioritizationYou give Your accounts with fit, intent, relationship and timing scoresYou get A ranked list, a tier for each account and the next action for each one
- Lookalike Signal GeneratorYou give Your champions' job titles, plus any company profile, technologies or buying triggersYou get Targeting criteria for LinkedIn, Google Ads, intent data and B2B contact databases
- Buyer Group AnalyzerYou give What you sell, your deal size and your typical championYou get A buying group map from champion to blocker, an influence map, a multithreading checklist and questions for each role
Is our ICP still right?
- ICP Gap AnalysisYou give Your current customer base and your ideal customer profileYou get The gaps between them, their likely causes, criteria to add or rule out and a 30 day action plan
- ICP Evolution TrackerYou give Your current ideal customer profile, recent wins and losses, and market changesYou get A review checklist, a decision matrix, possible updates and signals that should prompt a change
When a tool is not enough: if the decision needs more than one answer, talk it through in a call. Book 45 minutes with Shashwat.
[03]
Who is ICP Intelligence not ideal for?
- Teams looking for a list of companies to target: the tools describe and score profiles from your data, but they do not find companies.
- Teams that want market sizing without their own numbers: TAM, SAM and SOM are built from the figures you enter, and an ICP match rate or market share you leave out is filled with a labelled example (30% and 3%).
- Teams that need saved models or CRM sync: answers are not stored and no CRM is connected.
Questions people ask
Is there a free MCP server for ideal customer profile (ICP) work, such as scoring, buying groups and TAM, SAM and SOM?
Yes. ICP Intelligence, by Helix GTM Consulting, has nine ICP tools: a deep dive on your best customers, a scoring model, buyer group mapping, a TAM, SAM and SOM calculation, lookalike targeting criteria, account prioritization, gap analysis, ICP change tracking and interview synthesis. It is for founders and demand generation heads, and it works only from the data you give it.
Is there a free TAM, SAM and SOM calculator I can use inside Claude?
Yes. The TAM SAM SOM Calculator in ICP Intelligence takes how many companies could buy and your average contract value, and works out TAM, SAM and SOM bottom up, with the assumptions behind them and a summary to review.
What free tool builds an ICP scoring model, maps the buying group and defines lookalike criteria?
In ICP Intelligence, the ICP Scoring Model returns a scoring matrix with example weights, qualification tiers and a scorecard template. The Buyer Group Analyzer maps the buying group from champion to blocker, and the Lookalike Signal Generator returns targeting criteria for LinkedIn, Google Ads, intent data and B2B contact databases.
How do I use ICP Intelligence in supported MCP clients, and is it free?
ICP Intelligence is free to use, with no account, sign in or API key. Add https://icp-intelligence.gtmhelix.com/mcp as a custom connector in Claude (web, desktop or mobile), in ChatGPT on plans that allow developer mode, or in Cursor, VS Code or Windsurf; in Claude Code, run claude mcp add --transport http icp-intelligence https://icp-intelligence.gtmhelix.com/mcp. You can also run the tools in a browser on this site.
Does it use AI to write the answers?
No. Each tool applies fixed rules in the ICP Intelligence code to the inputs you give it. It does not call an AI model and does not look anything up. When you use it from Claude or another assistant, that assistant writes around the tool's answer.
What happens to what I type?
It is sent to this site's server, used once to build the answer, and dropped when the answer is sent back. What you type and the answer are not stored, and nothing you type is logged. Only an anonymous count of tool calls is kept. The privacy page has the details.
How to read the answer
Each tool returns a structured analysis built from fixed rules, such as TAM, SAM, and SOM calculations, account tier rankings, scoring criteria weights, or buyer group roles. Figures calculated directly from your inputs are shown as stated, while any benchmark, match rate, share, or weight you did not provide is labelled as an example figure to replace with your own.
What to do next
- Founder: Run ICP Deep Dive and TAM, SAM, SOM Calculator with your actual customer count and contract value to define your target segment.
- CEO: Use the TAM, SAM, SOM Calculator and ICP Gap Analysis to test market sizing assumptions and segment shifts before presenting to the board.
- CMO: Run ICP Deep Dive, Buyer Group Analyzer, and Lookalike Signal Generator to align targeting, messaging, and campaign signals.
- CRO: Use ICP Scoring Model and Account Prioritization to rank target accounts into Tiers A to D and focus rep coverage.
- Demand generation head: Use Lookalike Signal Generator and Buyer Group Analyzer to build account lists, trigger campaigns, and multi-thread outreach.
Why come back
Re-run these tools after closing a new cohort of customers, completing a batch of buyer interviews, or reviewing quarterly win and loss data. The tool applies the same fixed rules every time. It does not call an AI model, and this site does not keep what you enter.