Thumbtack’s Marco Zappacosta on AI, Trust, and the Future of Marketplaces

Thumbtack’s Marco Zappacosta on AI, Trust, and the Future of Marketplaces

March 6, 2026 · 51 min · Season 2 · Episode 75

About this episode

Marco Zappacosta discusses the evolution of Thumbtack, the impact of AI on marketplaces, and the importance of trust in home services.

Marco Zapacosta is the co-founder and CEO of Thumbtack, the home services marketplace connecting homeowners with local pros for everything from plumbing to renovation. Started three weeks before Lehman Brothers collapsed in 2008, Thumbtack has grown to over $500M in annual run rate across 17 years of building. What you'll learn: Why Marco believes Thumbtack is still pre-product market fit at $500M in revenue How AI is shifting Thumbtack from a search engine to a matchmaker Why word of mouth is still the biggest competitor to every home services marketplace — and how AI finally evens the score Why convenience doesn't win when someone's spending $1,000 and entering your home Marco's take on practitioners vs. projectors — and why he doesn't trust most AI predictions Why AI agents won't disintermediate high-trust marketplaces How Thumbtack's operating model evolved from Google to Facebook to their own matrix structure What's kept Marco going for 17 years — and why he scores zero on neuroticism Why Marco wants to stay private a little longer before an inevitable IPO Why AI applied to robotics is overhyped and synthetic biology is massively underrated In this episode, we cover: (00:00)…

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