New York, NY: Probook, the AI operating system designed for home service businesses, has announced that it has raised $40 million in funding to accelerate the growth of its platform across the United States.
The funding round reinforces Probook’s position in the home services sector, where some of America’s largest service brands already operate on its dispatch-first platform.
The investment includes a $34 million Series A round led by Andreessen Horowitz (a16z) and a $6 million Seed round led by Sequoia Capital. Sequoia also participated in the Series A financing.
Home service businesses have increasingly adopted artificial intelligence tools over the past few years, often relying on multiple standalone solutions such as voice agents, chat widgets, and customer follow-up tools.
However, these systems frequently operate in silos, creating fragmented customer experiences and operational inefficiencies.
Probook was built with a dispatch-first approach, addressing what the company describes as the core operational challenge in home services.
The platform subsequently expanded to include customer intake, data cleaning, customer communication, and outbound engagement, all integrated through a unified context layer.
According to the company, every customer interaction remains on a single text thread and phone number, from initial contact through service completion.
The system is designed to ensure inbound leads receive accurate information, bookings are validated before assignment, and operational teams can focus on exception management while technicians increase productivity.
“I started Probook to solve a problem in my own business,” said George Eliadis, CEO and co-founder of Probook.
“I grew up pressure washing in upstate New York with my dad. Six summers in the truck. I spent two to three hours of my day driving between jobs. I’d be up on a ladder washing a house and miss calls because I couldn’t hear my phone ringing.”
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Eliadis later spent a summer working inside TR Miller, a $40 million HVAC, plumbing, and electrical business in Illinois, which eventually became Probook’s first customer. It was there that he witnessed similar operational challenges at a larger scale.
“Most AI vendors flocked to this space because it looked attractive on a spreadsheet,” he continued. “We came to it because we grew up in it. Dispatch is the hardest problem in home services. If you don’t start there, you can’t understand the business.”
Probook deploys its platform through in-person implementation, working alongside frontline teams and remaining actively involved in delivering operational outcomes for customers.
Today, Probook serves customers across hundreds of locations nationwide, ranging from independently owned businesses to private equity-backed platforms. Its customer roster includes TurnPoint Services, Master Trades Group, Del-Air, Peterman Brothers, and Sila Services.
“With Probook, we’ve centralized dispatch across 11 markets and 200 technicians without adding overhead. That scalability is critical to how we grow,” said Chad Peterman, CEO of Peterman Brothers.
Summers Plumbing, Heating & Cooling, which operates 14 locations and has 260 technicians using the platform, reportedly booked 2,542 jobs during its first month on Probook without any human intervention.
Del-Air, which operates across eight locations in Florida, utilizes Probook throughout its operations.
“We chose Probook over other AI vendors because they know dispatch. They’re also part of our front-line CSR,” noted Rick Rogers, CEO.
Commenting on the investment, David Haber, General Partner at Andreessen Horowitz, said, “Dispatch is the nerve center of every home service business, and Probook built their entire platform around it. It’s a years-old structural moat. America’s largest home service brands run on Probook today. We’re proud to have led their Series A.”
Konstantine Buhler, Partner at Sequoia Capital, added: “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 and why we’re doubling down now.”
Probook said it will use the newly raised capital to expand its go-to-market capabilities amid growing demand while continuing to invest in engineering and customer success teams.
