About
About ChasmJumpers
What we do
ChasmJumpers is a user testing marketplace for early-stage startups that matches founders with vetted testers who fit their exact target customer, so they get structured feedback before they build.
Why we exist
We started ChasmJumpers because we kept seeing the same pattern: founders spend months, and their own money, building a product they're convinced is a unicorn every morning, without anyone actually telling them whether a real customer wants it. That's not theoretical for us. Our founder built something herself once that solved a real, verifiable problem, and found out the hard way that the problem wasn't big enough for people to actually pay to solve. She's spent years since then helping other founders validate before they build, including through venture-building accelerator programs she created and led. ChasmJumpers exists so founders get that validation early, from people who actually look like their target customers, before they spend the time and money we didn't have to spend.
Founder
Katerina M, Founder
Katerina M founded ChasmJumpers after years spent helping founders validate their ideas. She was previously Founder Success and Program Manager at Tribe Network, and has created and led venture-building accelerator programs. She's also been on the other side of it: she built a product around a real, verifiable problem that turned out to not be big enough for people to pay for, a lesson that shapes how ChasmJumpers helps founders test demand before they build.
LinkedIn →How we vet testers
There's no manual approval gate to become a tester — anyone can create a profile. What makes a match "vetted" is that ChasmJumpers scores testers against a campaign's real profile criteria (industry, experience, expertise), and the founder approves or declines each applicant for their specific campaign.
Read more in the FAQ →