- Probook raises $40M across a $34M Series A led by Andreessen Horowitz and a $6M Seed round led by Sequoia Capital
- The startup is building an AI operating system for home service businesses, automating dispatch, scheduling, and customer communications
- Customers report significant efficiency gains, with some achieving technician-to-dispatcher ratios as high as 100:1
Built by a founder who spent six summers pressure washing houses with his father, Probook is taking on one of the most overlooked problems in home services: dispatch.
George Eliadis grew up working in the trades in upstate New York, often spending hours driving between jobs and missing customer calls while on-site. Years later, after working inside a $40 million HVAC, plumbing, and electrical business, he realised the same operational bottlenecks existed at scale. While dozens of startups were building AI tools for lead generation and customer acquisition, few were tackling the operational nerve centre that determines whether a home service business succeeds or fails.
That insight has now attracted some of Silicon Valley’s biggest investors.
Probook, the AI operating system for home service businesses, has raised $40 million in funding, including a $34 million Series A led by Andreessen Horowitz (a16z) and Sequoia Capital, which led it’s $6 million seed round.
The company is building software that automates dispatch, customer communication, data verification, and scheduling for home service providers across plumbing, HVAC, electrical, and maintenance sectors. Customers have reported significantly faster response times and improved operational efficiency, with some achieving technician-to-dispatcher ratios as high as 100:1.
The new capital will be used to expand Probook’s engineering, customer success, and go-to-market teams as demand continues to grow across the sector.
Why dispatch remains the industry’s biggest bottleneck
Home services is a massive industry, yet many businesses still rely on manual dispatch operations to coordinate technicians, manage bookings, and communicate with customers.
Over the past few years, operators have adopted a growing number of AI tools. However, most have been built around lead generation and customer acquisition rather than operational execution.
The result has been a patchwork of disconnected systems that create friction for both customers and employees.
Probook believes dispatch is the operational brain of every home service business. Rather than treating it as another workflow, the company built its entire platform around dispatch first before expanding into intake, customer messaging, outbound communication, and data cleaning.
Because all functions operate from a shared context layer, every customer interaction remains connected from the first enquiry through job completion. The company says this enables faster response times, higher technician utilisation, and a more seamless customer experience.
Built by people who worked in the trades
Unlike many startups entering the sector, Probook’s founders have direct experience working in home services. Eliadis was joined by Lewis Z, and Ben Cervantez in 2024 in New York.
“I started Probook to solve a problem in my own business,” said George Eliadis. “I grew up pressure washing with my dad and spent hours every day driving between jobs and missing customer calls.”
His understanding of the industry deepened after working inside TR Miller, which later became Probook’s first customer.
“Most AI vendors came into the industry because it looked attractive on paper,” he said. “We came to it because we grew up in it. Dispatch is the hardest problem in home services.”
That industry-first perspective has become a key part of the company’s strategy. Probook deploys alongside customers in person, works directly with front-line teams, and remains closely involved in implementation rather than simply selling software.
Customers are already seeing measurable results
The platform is now used across hundreds of locations nationwide, serving businesses ranging from independent operators to private-equity-backed service platforms.
Customers include TurnPoint Services, Master Trades Group, Del-Air, Peterman Brothers, and Sila Services.
Peterman Brothers has centralised dispatch operations across 11 markets and 180 technicians using Probook.
“With Probook, we’ve centralised dispatch across 11 markets and 180 technicians without adding overhead,” said Chad Peterman, CEO of Peterman Brothers.
Meanwhile, Summers Plumbing, Heating & Cooling booked 2,542 jobs during its first month on the platform with zero human intervention.
Some operators have reported technician-to-dispatcher ratios reaching 100:1, a level of efficiency rarely seen in traditional home service operations.
Why a16z and Sequoia are doubling down
The home services sector has become an increasingly attractive market for technology investors, driven by labour shortages, operational inefficiencies, and growing customer expectations.
Probook’s investors believe the company has identified the industry’s most important workflow.
“Dispatch is the nerve center of every home service business,” said David Haber, General Partner at Andreessen Horowitz. “America’s largest home service brands run on Probook today.”
Sequoia, which first backed the company at Seed stage, participated again in the Series A.
“Most founders building for the trades have never worked in them,” said Konstantine Buhler, Partner at Sequoia Capital. “George has, and that’s a big part of why we backed the company.”
Competition
Probook enters a rapidly growing market that includes some of the most valuable software companies serving the trades.
ServiceTitan remains the dominant player, building an end-to-end operating system for contractors and reaching a multi-billion-dollar valuation. Other major players include Jobber and Housecall Pro, both of which have raised funding to simplify scheduling, payments, and customer management.
However, Probook’s differentiation lies in its dispatch-first approach. While many competitors treat dispatch as one feature among many, Probook has built its entire platform around the workflow it believes drives every operational outcome.
What’s next?
The future of home services may not be won by the company with the best chatbot or the most AI agents.
Instead, it could belong to the platform that best coordinates people, schedules, and customer interactions behind the scenes.
With backing from both Andreessen Horowitz and Sequoia Capital, Probook is betting that dispatch is where the next wave of AI transformation in home services will happen. And judging by the pace of customer adoption, investors are increasingly convinced it may be right.
