0%
of startups fail from "no market need"
The #1 killer, year after year.
For VCs & Investors
See PMF across your entire portfolio.
Every founder you back says they have traction. Standardized PMF scores show you who actually does: every company, on the same scale, tracked over time. And investor access is free.
No credit card required · Free investor access
The problem
Every founder claims traction.
None of it compares.
Three portfolio companies, three different metrics, and no apples-to-apples way to see who actually has demand until it's too late to help.
0%
the Sean Ellis line
The threshold that separates real fit from struggle.
0 score
standardized for every company
One instrument across your whole portfolio.
What you get
One score. Every company.
Tracked over time.
PMFtracker puts every portfolio company on the same instrument, the Sean Ellis 40% test, and rolls it up for you.
Standardized PMF score
Every company measured on the same Sean Ellis 40% rule, the methodology used by Superhuman and Nubank. Apples to apples, at last.
Portfolio dashboard
Product-market fit across all your companies in one view, not buried in a dozen different board decks.
The trend, not a snapshot
PMF is a number that moves. See which companies are climbing toward 40% and which are quietly sliding.
Early-warning signal
Spot a stall while there's still time to help, not in a down-round conversation six months too late.
How it works
How it works for your portfolio.
01
Companies measure
Each company runs the Sean Ellis survey in PMFtracker on its engaged users. The score is calculated automatically on the 40% rule.
02
You see the trend
Standardized scores roll up into your portfolio view, tracked over time, one consistent number across every company.
03
You act earlier
Double down on the companies pulling ahead, and dig into the ones sliding, with data, not a gut read.
Why it matters
Diligence on evidence
For new deals, ask for the PMF trend, not the pitch. A rising Sean Ellis score with a clear ICP is the hardest signal to fake.
Help founders get there
Give every company a systematic way to measure and improve PMF. The improvement loop →
Free investor access
You get complimentary access and the portfolio view. Companies pay once, lifetime, no subscription.
In practice
The calls portfolio PMF data helps you make.
Where the next check goes
When two seed companies both claim momentum, the one with a rising Sean Ellis score and a defined ICP is the safer reserve. PMF data turns a gut call into a side-by-side comparison.
Which founders need help now
A score sliding for two quarters is an early-warning signal you'd otherwise catch at a board meeting, months too late. Step in while it's still fixable.
Whether the traction is real
A revenue spike can be a launch bump or genuine demand. The "very disappointed" percentage tells you which, before you price the next round on it.
When a company is Series-A ready
A score that has crossed 40% and held there, with a clear ICP, is the cleanest evidence a company can take to its next raise, and that you can take to your LPs.
"The 'Sean Ellis score' is a key element of how Nubank measures product-market fit and makes decisions about investing in new products. The score is based on asking customers, 'How disappointed would you be if this product went away?'"
Track product-market fit
across your portfolio.
Get a standardized PMF score for every company, see the trend, and spot the stalls early. Investor access is free, set up your portfolio view in minutes.
No credit card required · Free investor access
FAQ
Fair questions.
Is PMFtracker free for investors?
Yes. Investors and VCs get complimentary access, including a portfolio view to track product-market fit across multiple companies.
How do I see PMF across my portfolio?
When your companies measure PMF in PMFtracker with the Sean Ellis survey, you get a standardized score for each one, tracked over time, in a single portfolio dashboard, so you compare on the same 40% rule instead of each founder's own metrics.
Do my portfolio companies have to pay?
Companies use a one-time, lifetime plan (PMF Starter $99, PMF Startup Kit $199) with a 14-day free trial. Investors and accelerators get complimentary access to the portfolio view.
What's a good PMF score?
On the Sean Ellis test, 40%+ "very disappointed" indicates fit; above 50% is strong. The trend matters as much as the number. More on the 40% rule →
We run an accelerator, not a fund.
PMFtracker works the same way for cohorts and programs. See PMFtracker for accelerators →