Probook
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Investors
Founders
About
Probook is a New York City-based developer of an AI-powered operating system for home service businesses, built around a centralized dispatch engine 12. The platform consolidates customer intake, automated data cleaning, SMS messaging, and outbound scheduling into a single context layer so dispatchers can route the right technician to the right job at the right time 23. Founders George Eliadis (CEO), Ben Cervantez, and Lewis Zhang (CTO) launched the company drawing on Eliadis’s background as a tradesman 13. Early customers include Summers Plumbing, Heating & Cooling — which booked 2,542 jobs in its first month on Probook with zero human intervention across 14 locations and 260 technicians — and Del-Air, which reported dispatcher productivity doubling from 10 to 22 technicians per dispatcher 23.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-06-23 | Series A | $34M | Andreessen Horowitz | Sequoia Capital 123 |
| 2026-06-23 | Seed | $6M | Sequoia Capital | 12 |
What Investors Say
“Every home services business runs on dispatch: which technician goes to which job, in what order, at what time. Almost every AI vendor building for the trades skipped dispatch, instead rushing to build voice agents and chat.” — Andreessen Horowitz, on Probook’s Series A, June 23, 2026 4
“Dispatch is the nerve center of every home service business, and Probook built their entire platform around it.” — David Haber, General Partner at Andreessen Horowitz, on Probook’s Series A, June 23, 2026 1
“Most founders building for the trades have never worked in them. George has. Pair that with the team’s outlier technical depth, and you see why we backed Probook at Seed.” — Konstantine Buhler, Partner at Sequoia Capital, on Probook’s Seed, June 23, 2026 1
What Founders Say
“I grew up pressure washing in upstate New York with my dad. Six summers in the truck. I’d be up on a ladder washing a house and miss calls because I couldn’t hear my phone ringing.” — George Eliadis, Co-Founder & CEO, Probook, on the company’s origin, June 23, 2026 1
Sources
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GlobeNewswire, “Probook Raises $40M from Andreessen Horowitz and Sequoia to Scale the AI Operating System for Home Services,” June 23, 2026. Accessed June 2026. https://www.globenewswire.com/news-release/2026/06/23/3316215/0/en/probook-raises-40m-from-andreessen-horowitz-and-sequoia-to-scale-the-ai-operating-system-for-home-service↩↩↩↩↩↩↩
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Andreessen Horowitz, “Investing in Probook,” June 23, 2026. Accessed June 2026. https://a16z.com/announcement/investing-in-probook/↩↩↩↩↩
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Tech Funding News, “Built by a tradesman backed by a16z and Sequoia, Probook raises $40M to reinvent dispatch for America’s home service businesses,” June 23, 2026. Accessed June 2026. https://techfundingnews.com/built-by-a-tradesman-backed-by-a16z-and-sequoia-probook-raises-40m-to-reinvent-dispatch-for-americas-home-service-businesses/↩↩↩↩
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Andreessen Horowitz on X (Twitter), “We’re excited to lead Probook’s $34M Series A,” June 23, 2026. Accessed June 2026. https://x.com/a16z/status/20694145749993435↩