How do we know if we have product-market fit before scaling GTM?

Product-market fit (PMF) isn’t just a vibe, but it often starts as one. Before you scale your go-to-market (GTM) strategy, you should see clear, repeated signs that…

You’ll feel it—and you can measure it

Product-market fit (PMF) isn’t just a vibe, but it often starts as one. Before you scale your go-to-market (GTM) strategy, you should see clear, repeated signs that your product solves a painful problem—and buyers are pulling it from you.

Here’s what to look for:

  • ✅ You’re closing repeat customers in a specific niche (not just one-offs)
  • ✅ Deals are getting easier, not harder—less convincing, more urgency
  • ✅ Buyers are referencing each other’s pain without being prompted
  • ✅ Referrals, expansion, or inbound demand is showing up
  • ✅ You’re saying “no” more often—because ideal fit is finally obvious

“Product-market fit is when people try to rip the product out of your hands.”
— Marc Andreessen

You can also use the PMF survey signal:
If >40% of users say they’d be “very disappointed” if your product disappeared, you’re close. (Sean Ellis PMF benchmark)


Founder’s checkpoint:
If you’re still chasing every deal or pivoting messaging each week—pause. Don’t scale GTM until you know what actually works.

Michael Schiltz

Written by

Michael Schiltz

Fractional CCO, engineer by training and author of The GTM Engine. I help founders replace founder-led sales with a repeatable system.

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