Probook raises $40M from a16z and Sequoia for AI dispatch OS targeting HVAC, plumbing, electrical trades
Probook, the AI operating system for home service businesses, announced $40 million in funding comprising a $34 million Series A led by Andreessen Horowitz and a $6 million seed round led by Sequoia Capital, which also participated in the Series A. The platform unifies dispatch, intake, customer messaging, data scrubbing, and scheduling for plumbing, HVAC, electrical, and maintenance contractors—markets historically dominated by legacy software and manual workflows.
Early traction is strong: an Indiana customer with 14 locations and 260 technicians booked 2,542 jobs in its first month without a single human touching the booking; a Florida operator cut dispatchers from 22 to 10; and a Kansas shop grew average job revenue by 20%. Probook distinguishes itself from competitors by prioritizing dispatch—the core operational challenge driving profitability—rather than peripheral lead-gen and voice tools that characterize other vertical AI startups.
The funding targets private equity-backed home service rollups, where consolidation has hit 88% growth year-over-year through mid-2025, pairing well with founders (CEO George Eliadis spent six summers pressure-washing with his dad in upstate New York) who deeply understand operational bottlenecks. Andreessen Horowitz noted a 'years-old structural moat,' with America's largest home service brands already running on Probook.
Sources
- Primary source
- globenewswire.com
“Probook, the AI Operating System for home service businesses, today announced $40 million in funding”
- fortune.com
“an Indiana customer with 14 locations and 260 technicians booked 2,542 jobs in its first month without a single human touching the booking”
- globenewswire.com
“Dispatch is the nerve center of every home service business, and Probook built their entire platform around it”